:root{
  --bg:#06080d;
  --bg-soft:#0d1118;
  --bg-elevated:rgba(16,22,31,.78);
  --panel:rgba(16,22,31,.72);
  --panel-strong:rgba(14,19,28,.92);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.14);
  --text:#f4f7fb;
  --text-soft:#d7deea;
  --muted:#97a5b7;
  --primary:#7dd3fc;
  --primary-strong:#5ac8fa;
  --secondary:#d0d7e5;
  --accent:#8ea4ff;
  --success:#39d0bf;
  --warning:#ffb648;
  --danger:#ff6f7d;
  --shadow:0 20px 55px rgba(0,0,0,.34);
  --shadow-soft:0 14px 40px rgba(0,0,0,.24);
  --radius:24px;
  --radius-sm:16px;
  --blur:22px;
  --transition:220ms cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);scroll-behavior:smooth}
body{
  min-height:100vh;position:relative;overflow-x:hidden;
  background:
  radial-gradient(circle at 12% 18%, rgba(90,200,250,.13), transparent 24%),
  radial-gradient(circle at 84% 14%, rgba(142,164,255,.12), transparent 28%),
  radial-gradient(circle at 50% 120%, rgba(255,255,255,.035), transparent 42%),
  linear-gradient(180deg,#04060a 0%, #0a0d13 35%, #0b1018 100%);
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;opacity:.18;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:34px 34px;
  mask-image:radial-gradient(circle at center, black 48%, transparent 82%);
}
.page-shell{
  opacity:0;transform:translateY(12px) scale(.992);filter:blur(8px);
  transition:opacity .45s cubic-bezier(.16,1,.3,1),transform .45s cubic-bezier(.16,1,.3,1),filter .45s cubic-bezier(.16,1,.3,1);
}
body.page-ready .page-shell{opacity:1;transform:none;filter:none}
body.page-leaving .page-shell{opacity:0;transform:translateY(10px) scale(.99);filter:blur(10px)}
.page-loader{
  position:fixed;top:0;left:0;height:2px;width:100%;z-index:120;
  transform-origin:left center;transform:scaleX(0);
  background:linear-gradient(90deg,rgba(125,211,252,.12), rgba(90,200,250,.95), rgba(142,164,255,.72), rgba(255,255,255,.2));
  box-shadow:0 0 22px rgba(90,200,250,.35);
  opacity:0;transition:transform .45s cubic-bezier(.22,1,.36,1),opacity .25s ease;
}
body.page-leaving .page-loader{opacity:1;transform:scaleX(1)}
.ambient{position:fixed;border-radius:999px;filter:blur(52px);pointer-events:none;opacity:.55}
.ambient-a{width:280px;height:280px;top:-70px;right:-60px;background:rgba(90,200,250,.14)}
.ambient-b{width:260px;height:260px;left:-80px;top:35vh;background:rgba(142,164,255,.12)}
.ambient-c{width:360px;height:360px;bottom:-160px;left:35vw;background:rgba(255,255,255,.05)}

a{color:inherit;text-decoration:none;transition:color var(--transition),opacity var(--transition),transform var(--transition),border-color var(--transition),background var(--transition),box-shadow var(--transition)}
img{max-width:100%}
.container{width:min(1180px,92vw);margin:0 auto}
.narrow{width:min(760px,92vw)}
.small{font-size:.84rem}
.muted{color:var(--muted)}
.center{text-align:center}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex}
.between{justify-content:space-between}
.center-v{align-items:center}
.gap{gap:12px}
.inline-form{display:inline-flex}
hr{border:none;height:1px;background:rgba(255,255,255,.08)}
h1,h2,h3,h4{margin:0 0 12px}
h1{font-size:clamp(2.2rem,4.8vw,4.6rem);line-height:1;letter-spacing:-.035em}
h2{font-size:clamp(1.55rem,2.4vw,2.35rem);line-height:1.06;letter-spacing:-.028em}
h3{font-size:1.08rem;letter-spacing:-.02em}
.lead{font-size:1.08rem;color:var(--text-soft);max-width:760px;line-height:1.7}
.eyebrow{
  color:var(--primary);font-size:.8rem;text-transform:uppercase;letter-spacing:.18em;
  margin-bottom:10px;font-weight:700;text-shadow:0 0 18px rgba(90,200,250,.16)
}

.topbar{
  position:sticky;top:0;z-index:60;padding:18px 0;
  background:linear-gradient(180deg, rgba(5,7,11,.82), rgba(5,7,11,.58));
  backdrop-filter:blur(18px) saturate(1.25);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.nav>a,.sidebar-nav a{
  position:relative;display:inline-flex;align-items:center;gap:10px;
}
.nav>a:not(.btn),.sidebar-nav a{
  color:#dbe6f4;
}
.nav>a:not(.btn)::after,
.sidebar-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:1px;border-radius:999px;
  background:linear-gradient(90deg, transparent, rgba(90,200,250,.82), transparent);
  transform:scaleX(0);transform-origin:center;transition:transform var(--transition),opacity var(--transition);opacity:0;
}
.nav>a.active:not(.btn), .nav>a:not(.btn):hover{color:#fff}
.nav>a.active:not(.btn)::after,.nav>a:not(.btn):hover::after,
.sidebar-nav a.active::after,.sidebar-nav a:hover::after{transform:scaleX(1);opacity:1}

.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:-.02em}
.brand-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:14px;
  background:linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.11);box-shadow:0 12px 24px rgba(0,0,0,.26), inset 0 1px 0 rgba(255,255,255,.1);
  color:#dff3ff;
}
.hero{padding:92px 0 60px}
.hero-grid{display:grid;grid-template-columns:1.2fr .92fr;gap:26px;align-items:center}

.panel,.course-card,.metric-card,.stat-card,.certificate-sheet,.lesson-card{
  background:linear-gradient(180deg, rgba(21,27,37,.74), rgba(13,18,27,.74));
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(var(--blur)) saturate(1.18);
}
.panel::before,.course-card::before,.metric-card::before,.stat-card::before,.lesson-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg, rgba(255,255,255,.055), transparent 20%, transparent 80%, rgba(255,255,255,.03));
  opacity:.9;
}
.panel,.course-card,.metric-card,.stat-card,.lesson-card{position:relative;overflow:hidden}
.panel{padding:24px}
.panel-thin{padding:16px}
.glass-soft{background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025))}
.metric-card{padding:24px;min-height:136px;display:flex;flex-direction:column;justify-content:space-between}
.metric-card strong,.stat-card strong{font-size:2rem;letter-spacing:-.04em}
.glass-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.metric-label{color:var(--muted);font-size:.83rem;letter-spacing:.04em;text-transform:uppercase}

.section{padding:40px 0}
.section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course-card{overflow:hidden;transform:translateY(0);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}
.course-card:hover,.panel:hover,.metric-card:hover,.stat-card:hover,.lesson-card:hover{
  transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(255,255,255,.14)
}
.course-cover{
  height:190px;
  background:
    radial-gradient(circle at 18% 18%, rgba(255,255,255,.18), transparent 18%),
    linear-gradient(135deg, rgba(142,164,255,.18), rgba(90,200,250,.13)),
    linear-gradient(180deg, rgba(255,255,255,.05), transparent);
  background-size:cover;background-position:center;position:relative;
}
.course-cover::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg, transparent, rgba(5,8,13,.18) 72%, rgba(5,8,13,.48));
}
.course-cover .pill{position:absolute;top:14px;left:14px;z-index:2}
.course-cover.large{height:240px}
.course-body{padding:18px;display:flex;flex-direction:column;gap:12px}
.pill,.badge{
  display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;font-size:.78rem;
  font-weight:700;letter-spacing:.02em;position:relative;z-index:1
}
.pill{
  background:rgba(5,8,13,.52);border:1px solid rgba(255,255,255,.11);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.badge-success{background:rgba(57,208,191,.15);color:#a7fff3}
.badge-warning{background:rgba(255,182,72,.14);color:#ffd797}
.badge-danger{background:rgba(255,111,125,.14);color:#ffd2d8}
.badge-primary{background:rgba(90,200,250,.14);color:#d8f5ff}
.badge-muted{background:rgba(255,255,255,.08);color:#d7dce8}

.price{font-weight:800;font-size:1.18rem;letter-spacing:-.03em}
.price.big{font-size:2rem}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 16px;border-radius:14px;border:1px solid transparent;cursor:pointer;
  background:transparent;color:var(--text);font-weight:700;letter-spacing:-.01em;
  transition:transform var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition),opacity var(--transition);
  box-shadow:none
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-sm{padding:9px 12px;border-radius:12px;font-size:.85rem}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(135deg, rgba(239,247,255,.94), rgba(90,200,250,.94));
  color:#061018;border-color:rgba(255,255,255,.2);
  box-shadow:0 14px 26px rgba(90,200,250,.22), inset 0 1px 0 rgba(255,255,255,.52)
}
.btn-primary:hover{box-shadow:0 18px 30px rgba(90,200,250,.26), inset 0 1px 0 rgba(255,255,255,.62)}
.btn-secondary{
  background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.04));
  border-color:rgba(255,255,255,.1)
}
.btn-ghost{
  background:rgba(255,255,255,.02);border-color:rgba(255,255,255,.1)
}
.btn-danger{background:rgba(255,111,125,.12);border-color:rgba(255,111,125,.22);color:#ffd4d4}

.input{
  width:100%;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.09);color:var(--text);padding:13px 14px;border-radius:14px;outline:none;
  transition:border-color var(--transition),box-shadow var(--transition),background var(--transition),transform var(--transition)
}
.input:hover{background:rgba(255,255,255,.07)}
.input:focus{
  border-color:rgba(90,200,250,.55);background:rgba(255,255,255,.08);
  box-shadow:0 0 0 4px rgba(90,200,250,.1), inset 0 1px 0 rgba(255,255,255,.08)
}
label span{display:block;font-size:.88rem;color:#d8deea;margin-bottom:8px}
textarea.input{min-height:120px;resize:vertical}
.textarea-lg{min-height:180px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.filters{display:grid;grid-template-columns:2fr 1fr 1fr 1fr auto;gap:12px;align-items:end;margin-bottom:20px}

.flash{
  width:min(1180px,92vw);margin:16px auto 0;padding:14px 18px;border-radius:16px;border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(1.15);box-shadow:var(--shadow-soft)
}
.flash-success{background:rgba(57,208,191,.13);color:#b6ffef}
.flash-error{background:rgba(255,111,125,.12);color:#ffd2d2}

.dashboard-shell{display:grid;grid-template-columns:286px 1fr;min-height:100vh}
.sidebar{
  padding:24px 18px;border-right:1px solid rgba(255,255,255,.07);
  background:linear-gradient(180deg, rgba(7,10,16,.88), rgba(9,12,18,.68));
  backdrop-filter:blur(24px) saturate(1.2);position:sticky;top:0;height:100vh;display:flex;flex-direction:column
}
.sidebar-nav{display:flex;flex-direction:column;gap:8px;margin-top:18px}
.sidebar-nav a{
  padding:13px 14px;border-radius:16px;color:#dbe2ef;border:1px solid transparent;
  background:linear-gradient(180deg, rgba(255,255,255,.02), transparent)
}
.sidebar-nav a:hover,.sidebar-nav a.active{
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border-color:rgba(255,255,255,.1);box-shadow:inset 0 1px 0 rgba(255,255,255,.08)
}
.sidebar-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:12px}
.dashboard-main{padding:28px}
.dashboard-topbar{display:flex;justify-content:space-between;align-items:end;margin-bottom:20px}
.dashboard-content{display:flex;flex-direction:column;gap:20px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-card{padding:20px}
.stat-card span{display:block;color:var(--muted);margin-bottom:10px}
.dashboard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.table-wrap{overflow:auto;border-radius:18px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:14px;border-bottom:1px solid rgba(255,255,255,.06);vertical-align:top;text-align:left}
.table th{font-size:.79rem;text-transform:uppercase;letter-spacing:.1em;color:#b4bed1}
.table tr:hover td{background:rgba(255,255,255,.015)}
.list-row{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.list-row:last-child{border-bottom:none}
.course-detail-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
.builder-layout{display:grid;grid-template-columns:340px 1fr;gap:18px}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.sticky{position:sticky;top:96px}
.accordion{background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:16px}
.accordion summary{cursor:pointer;list-style:none;font-weight:700}
.accordion summary::-webkit-details-marker{display:none}
.accordion-body{padding-top:14px}
.progress-bar{height:10px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.progress-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--success),var(--primary))}
.progress-xl{height:14px;margin-bottom:18px}
.lesson-card{display:flex;justify-content:space-between;gap:16px;padding:18px;border-radius:18px;background:rgba(255,255,255,.025)}
.certificate-sheet{
  padding:36px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,249,252,.98)),
    radial-gradient(circle at top left, rgba(90,200,250,.08), transparent 20%);
  color:#0f1728;
  box-shadow:0 24px 50px rgba(0,0,0,.2)
}
.certificate-sheet .muted{color:#5c6476}
.certificate-name{font-size:2rem;letter-spacing:-.03em}
.certificate-course{font-size:1.5rem;letter-spacing:-.02em}
.certificate-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0;padding:18px;border:1px solid rgba(15,23,40,.08);border-radius:18px}
.certificate-meta span{display:block;color:#59627a;font-size:.85rem}
.certificate-footer{display:flex;justify-content:space-between;gap:20px;align-items:end;margin:26px 0}
.signature-line{width:240px;height:1px;background:#1c2435;margin-bottom:8px}
.qr-box img{width:150px;height:150px;object-fit:cover;border:1px solid rgba(15,23,40,.12);border-radius:18px;background:#fff}
.checkout-grid{display:grid;grid-template-columns:1fr .9fr;gap:18px}
.footer{padding:28px 0;border-top:1px solid rgba(255,255,255,.07);margin-top:72px;background:linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,.02))}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:rgba(255,255,255,.02)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg, rgba(255,255,255,.12), rgba(90,200,250,.25));border-radius:999px;border:2px solid transparent;background-clip:padding-box}
::selection{background:rgba(90,200,250,.22);color:#fff}

@media (max-width:1100px){
  .hero-grid,.card-grid,.dashboard-grid,.stats-grid,.builder-layout,.course-detail-grid,.checkout-grid,.filters,.form-grid,.glass-grid{grid-template-columns:1fr}
  .dashboard-shell{grid-template-columns:1fr}
  .sidebar{position:relative;height:auto;border-right:none;border-bottom:1px solid rgba(255,255,255,.07)}
  .dashboard-topbar,.section-head,.nav,.row.between{flex-direction:column;align-items:flex-start}
}
@media (max-width:720px){
  .container,.narrow{width:min(94vw,1000px)}
  .dashboard-main{padding:18px}
  .panel,.stat-card,.metric-card{padding:18px}
  .hero{padding-top:58px}
  h1{font-size:clamp(2rem,9vw,3rem)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
  .page-shell{opacity:1!important;transform:none!important;filter:none!important}
}


/* === Monochrome Liquid Metal Theme Override === */
:root{
  --bg:#030405;
  --bg-soft:#0a0b0d;
  --bg-elevated:rgba(18,18,20,.84);
  --panel:rgba(245,247,250,.06);
  --panel-strong:rgba(13,14,16,.92);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#f6f7f9;
  --text-soft:#d9dde3;
  --muted:#a4abb4;
  --primary:#ffffff;
  --primary-strong:#f0f3f7;
  --secondary:#cfd5dc;
  --accent:#8d97a3;
  --success:#f3f6fa;
  --warning:#d7dbe2;
  --danger:#f7f8fb;
  --shadow:0 26px 64px rgba(0,0,0,.45);
  --shadow-soft:0 18px 44px rgba(0,0,0,.30);
  --radius:24px;
  --radius-sm:16px;
  --blur:26px;
  --transition:260ms cubic-bezier(.22,1,.36,1);
}

body{
  background:
    radial-gradient(circle at 14% 18%, rgba(255,255,255,.10), transparent 20%),
    radial-gradient(circle at 82% 12%, rgba(255,255,255,.07), transparent 22%),
    radial-gradient(circle at 70% 82%, rgba(190,197,206,.05), transparent 24%),
    linear-gradient(145deg, #010101 0%, #070809 28%, #0b0d10 56%, #040506 100%);
}
body::before{
  opacity:.17;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
}
body::after{
  content:"";position:fixed;inset:-15%;pointer-events:none;z-index:0;opacity:.55;
  background:
    radial-gradient(circle at 24% 18%, rgba(255,255,255,.12), transparent 16%),
    radial-gradient(circle at 76% 22%, rgba(255,255,255,.08), transparent 18%),
    radial-gradient(circle at 60% 70%, rgba(175,184,194,.08), transparent 16%);
  filter:blur(48px);
  animation:haloDrift 18s ease-in-out infinite alternate;
}
.page-shell{position:relative;z-index:2}
.page-loader{
  height:3px;
  background:linear-gradient(90deg, rgba(255,255,255,.08), rgba(255,255,255,.96), rgba(194,202,210,.88), rgba(255,255,255,.08));
  background-size:200% 100%;
  box-shadow:0 0 16px rgba(255,255,255,.22), 0 0 34px rgba(255,255,255,.10);
}
body.page-leaving .page-loader{animation:loaderSweep 1.2s linear infinite}

.ambient{
  opacity:.78;
  filter:blur(72px);
  mix-blend-mode:screen;
  animation:ambientFloat 18s ease-in-out infinite;
}
.ambient-a{
  width:320px;height:320px;top:-70px;right:-70px;
  background:radial-gradient(circle, rgba(255,255,255,.15) 0%, rgba(238,242,248,.08) 38%, transparent 74%);
}
.ambient-b{
  width:280px;height:280px;left:-90px;top:34vh;
  background:radial-gradient(circle, rgba(255,255,255,.10) 0%, rgba(182,191,200,.07) 40%, transparent 74%);
  animation-delay:-6s;
}
.ambient-c{
  width:380px;height:380px;bottom:-160px;left:35vw;
  background:radial-gradient(circle, rgba(255,255,255,.08) 0%, rgba(173,181,190,.06) 34%, transparent 74%);
  animation-delay:-10s;
}

.eyebrow{
  color:#eef2f6;
  text-shadow:0 0 20px rgba(255,255,255,.10), 0 0 34px rgba(255,255,255,.08);
}
.topbar{
  background:linear-gradient(180deg, rgba(8,9,11,.84), rgba(8,9,11,.58));
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 12px 32px rgba(0,0,0,.18);
}
.nav>a:not(.btn),.sidebar-nav a{color:#eef1f5}
.nav>a:not(.btn)::after,
.sidebar-nav a::after{
  height:1.5px;
  background:linear-gradient(90deg, transparent, rgba(255,255,255,.95), rgba(200,208,218,.82), transparent);
  box-shadow:0 0 18px rgba(255,255,255,.14);
}
.brand{letter-spacing:-.03em}
.brand-mark{
  background:
    radial-gradient(circle at 28% 24%, rgba(255,255,255,.90), rgba(255,255,255,.18) 18%, transparent 19%),
    linear-gradient(145deg, rgba(255,255,255,.24), rgba(255,255,255,.04));
  color:#fff;
  border-color:rgba(255,255,255,.16);
  box-shadow:
    0 14px 28px rgba(0,0,0,.32),
    inset 0 1px 0 rgba(255,255,255,.25),
    inset 0 -14px 20px rgba(0,0,0,.12),
    0 0 18px rgba(255,255,255,.08);
  animation:markPulse 5s ease-in-out infinite;
}

.panel,.course-card,.metric-card,.stat-card,.lesson-card,.certificate-sheet{
  background:
    linear-gradient(180deg, rgba(255,255,255,.085), rgba(255,255,255,.03)),
    linear-gradient(180deg, rgba(16,17,20,.88), rgba(9,10,12,.90));
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.09);
  backdrop-filter:blur(var(--blur)) saturate(1.08);
}
.panel::before,.course-card::before,.metric-card::before,.stat-card::before,.lesson-card::before{
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), transparent 20%, transparent 78%, rgba(255,255,255,.025)),
    linear-gradient(120deg, transparent 20%, rgba(255,255,255,.08) 50%, transparent 80%);
  background-size:100% 100%, 220% 100%;
  animation:sheen 9s linear infinite;
}
.course-card:hover,.panel:hover,.metric-card:hover,.stat-card:hover,.lesson-card:hover{
  border-color:rgba(255,255,255,.16);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.12), 0 0 0 1px rgba(255,255,255,.03);
}
.glass-soft{background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03))}
.metric-label,.table th,.muted,.certificate-meta span{color:#abb3bd}

.course-cover{
  background:
    radial-gradient(circle at 20% 18%, rgba(255,255,255,.24), transparent 16%),
    radial-gradient(circle at 72% 30%, rgba(255,255,255,.10), transparent 20%),
    linear-gradient(135deg, rgba(255,255,255,.14), rgba(153,161,170,.08) 45%, rgba(255,255,255,.03));
}
.course-cover::after{
  background:
    linear-gradient(180deg, rgba(255,255,255,.02), transparent 34%, rgba(5,6,8,.36) 76%, rgba(5,6,8,.66));
}
.pill{
  background:rgba(8,9,11,.44);
  border-color:rgba(255,255,255,.14);
  color:#f7f8fa;
}
.badge-success,.badge-warning,.badge-danger,.badge-primary,.badge-muted{
  color:#f8f9fb;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}

.btn-primary{
  color:#050608;
  background:
    linear-gradient(140deg, rgba(255,255,255,.98), rgba(230,234,239,.98) 58%, rgba(198,204,211,.98));
  border-color:rgba(255,255,255,.30);
  box-shadow:
    0 16px 30px rgba(255,255,255,.10),
    inset 0 1px 0 rgba(255,255,255,.92),
    inset 0 -10px 18px rgba(145,151,158,.16);
}
.btn-primary:hover{
  box-shadow:
    0 18px 34px rgba(255,255,255,.12),
    inset 0 1px 0 rgba(255,255,255,.98),
    inset 0 -10px 18px rgba(145,151,158,.22);
}
.btn-secondary,.btn-ghost{
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border-color:rgba(255,255,255,.11);
}
.btn-danger{
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  border-color:rgba(255,255,255,.12);
  color:#fff;
}

.input{
  background:rgba(255,255,255,.055);
  border-color:rgba(255,255,255,.10);
  color:#fff;
}
.input:hover{background:rgba(255,255,255,.07)}
.input:focus{
  border-color:rgba(255,255,255,.24);
  background:rgba(255,255,255,.085);
  box-shadow:0 0 0 4px rgba(255,255,255,.06), inset 0 1px 0 rgba(255,255,255,.10), 0 0 20px rgba(255,255,255,.08);
}
label span{color:#e5e8ed}

.sidebar{
  background:
    linear-gradient(180deg, rgba(7,8,10,.92), rgba(8,9,11,.74)),
    linear-gradient(180deg, rgba(255,255,255,.03), transparent);
}
.sidebar-nav a{
  background:linear-gradient(180deg, rgba(255,255,255,.025), transparent);
}
.sidebar-nav a:hover,.sidebar-nav a.active{
  background:linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.03));
  border-color:rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09), 0 0 18px rgba(255,255,255,.04);
}
.table tr:hover td{background:rgba(255,255,255,.028)}
.progress-bar{background:rgba(255,255,255,.08)}
.progress-bar span{
  background:linear-gradient(90deg, rgba(255,255,255,.95), rgba(220,226,233,.95), rgba(182,191,201,.88));
  background-size:200% 100%;
  animation:loaderSweep 3.6s linear infinite;
}

.certificate-sheet{
  background:
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(245,247,249,.98)),
    radial-gradient(circle at top left, rgba(225,230,236,.24), transparent 24%);
}
.qr-box img{box-shadow:0 10px 24px rgba(0,0,0,.12)}
.footer{
  background:linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,.03));
}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg, rgba(255,255,255,.24), rgba(166,174,184,.34));
}
::selection{background:rgba(255,255,255,.18);color:#fff}

@keyframes ambientFloat{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(12px,-10px,0) scale(1.06)}
  100%{transform:translate3d(-10px,12px,0) scale(.98)}
}
@keyframes haloDrift{
  0%{transform:translate3d(-2%, -1%, 0) scale(1)}
  50%{transform:translate3d(2%, 2%, 0) scale(1.04)}
  100%{transform:translate3d(-1%, 3%, 0) scale(.98)}
}
@keyframes sheen{
  0%{background-position:0 0, 200% 0}
  100%{background-position:0 0, -40% 0}
}
@keyframes loaderSweep{
  0%{background-position:200% 0}
  100%{background-position:-40% 0}
}
@keyframes markPulse{
  0%,100%{box-shadow:0 14px 28px rgba(0,0,0,.32), inset 0 1px 0 rgba(255,255,255,.25), inset 0 -14px 20px rgba(0,0,0,.12), 0 0 18px rgba(255,255,255,.08)}
  50%{box-shadow:0 18px 32px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.30), inset 0 -14px 20px rgba(0,0,0,.16), 0 0 28px rgba(255,255,255,.12)}
}

@media (prefers-reduced-motion:reduce){
  body::after,.ambient,.panel::before,.course-card::before,.metric-card::before,.stat-card::before,.lesson-card::before,.brand-mark,.progress-bar span,.page-loader{animation:none!important}
}


/* === Light Future Premium Theme Override === */
:root{
  --bg:#f4f6fb;
  --bg-soft:#eef2f7;
  --bg-elevated:rgba(255,255,255,.80);
  --panel:rgba(255,255,255,.82);
  --panel-strong:rgba(255,255,255,.92);
  --line:rgba(15,23,42,.08);
  --line-strong:rgba(15,23,42,.14);
  --text:#0f172a;
  --text-soft:#1e293b;
  --muted:#5f6b7c;
  --primary:#2563eb;
  --primary-strong:#1d4ed8;
  --secondary:#e2e8f0;
  --accent:#7dd3fc;
  --success:#16a34a;
  --warning:#d97706;
  --danger:#dc2626;
  --shadow:0 28px 68px rgba(15,23,42,.12);
  --shadow-soft:0 18px 44px rgba(15,23,42,.08);
}

html,body{color:var(--text)}
body{
  background:
    radial-gradient(circle at 12% 16%, rgba(59,130,246,.11), transparent 19%),
    radial-gradient(circle at 88% 14%, rgba(125,211,252,.16), transparent 18%),
    radial-gradient(circle at 68% 76%, rgba(148,163,184,.11), transparent 22%),
    linear-gradient(180deg, #fcfdff 0%, #f5f7fb 46%, #eef2f8 100%) !important;
  color:var(--text);
}
body::before{
  opacity:.28 !important;
  background-image:
    linear-gradient(rgba(148,163,184,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,.10) 1px, transparent 1px) !important;
}
body::after{
  opacity:.85 !important;
  background:
    radial-gradient(circle at 18% 12%, rgba(37,99,235,.14), transparent 16%),
    radial-gradient(circle at 82% 18%, rgba(14,165,233,.16), transparent 17%),
    radial-gradient(circle at 60% 72%, rgba(255,255,255,.95), transparent 18%) !important;
  filter:blur(56px) !important;
}

.page-loader{
  background:linear-gradient(90deg, rgba(37,99,235,.08), rgba(37,99,235,.95), rgba(14,165,233,.78), rgba(255,255,255,.05)) !important;
  box-shadow:0 0 16px rgba(37,99,235,.14), 0 0 34px rgba(14,165,233,.14) !important;
}

.ambient{mix-blend-mode:screen !important; opacity:.78 !important}
.ambient-a{
  background:radial-gradient(circle, rgba(37,99,235,.16) 0%, rgba(96,165,250,.08) 38%, transparent 74%) !important;
}
.ambient-b{
  background:radial-gradient(circle, rgba(14,165,233,.14) 0%, rgba(125,211,252,.10) 40%, transparent 74%) !important;
}
.ambient-c{
  background:radial-gradient(circle, rgba(255,255,255,.95) 0%, rgba(191,219,254,.18) 34%, transparent 74%) !important;
}

.topbar{
  background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.68)) !important;
  border-bottom:1px solid rgba(15,23,42,.08) !important;
  box-shadow:0 12px 28px rgba(15,23,42,.06) !important;
}
.footer{
  border-top:1px solid rgba(15,23,42,.08) !important;
  background:linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,.72)) !important;
}
.nav>a:not(.btn), .sidebar-nav a, .brand, .dashboard-topbar .muted, .footer .muted, .muted{color:var(--muted) !important}
.nav>a:not(.btn):hover, .nav>a:not(.btn).active, .brand, .sidebar-nav a.active, .sidebar-nav a:hover{color:var(--text) !important}
.nav>a:not(.btn)::after,
.sidebar-nav a::after{
  background:linear-gradient(90deg, transparent, rgba(37,99,235,.92), rgba(14,165,233,.72), transparent) !important;
  box-shadow:0 0 16px rgba(37,99,235,.12) !important;
}
.brand-mark{
  color:#0f172a !important;
  border-color:rgba(148,163,184,.18) !important;
  background:
    radial-gradient(circle at 28% 24%, rgba(255,255,255,.96), rgba(191,219,254,.55) 18%, transparent 19%),
    linear-gradient(145deg, rgba(255,255,255,.96), rgba(226,232,240,.72)) !important;
  box-shadow:
    0 14px 28px rgba(37,99,235,.10),
    inset 0 1px 0 rgba(255,255,255,.95),
    inset 0 -12px 18px rgba(148,163,184,.14),
    0 0 18px rgba(125,211,252,.16) !important;
}
.eyebrow{
  color:#2563eb !important;
  text-shadow:0 0 18px rgba(125,211,252,.18) !important;
}

.panel,.course-card,.metric-card,.stat-card,.lesson-card,.certificate-sheet,.accordion,.flash,.table-wrap{
  background:
    linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.82)),
    linear-gradient(180deg, rgba(248,250,252,.84), rgba(241,245,249,.78)) !important;
  border:1px solid rgba(148,163,184,.16) !important;
  box-shadow:var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.92) !important;
  color:var(--text) !important;
  backdrop-filter:blur(var(--blur)) saturate(1.2) !important;
}
.panel::before,.course-card::before,.metric-card::before,.stat-card::before,.lesson-card::before{
  background:
    linear-gradient(180deg, rgba(255,255,255,.72), transparent 20%, transparent 78%, rgba(148,163,184,.06)),
    linear-gradient(120deg, transparent 20%, rgba(125,211,252,.22) 50%, transparent 80%) !important;
}
.course-card:hover,.panel:hover,.metric-card:hover,.stat-card:hover,.lesson-card:hover{
  border-color:rgba(96,165,250,.26) !important;
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.96), 0 0 0 1px rgba(125,211,252,.08) !important;
}
.glass-soft{background:linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.76)) !important}
.metric-label,.table th,.certificate-meta span{color:#64748b !important}
.table th,.table td{border-bottom:1px solid rgba(148,163,184,.16) !important}
.table tr:hover td{background:rgba(37,99,235,.04) !important}
.list-row{border-bottom:1px solid rgba(148,163,184,.16) !important}

.sidebar{
  background:
    linear-gradient(180deg, rgba(255,255,255,.90), rgba(248,250,252,.82)),
    linear-gradient(180deg, rgba(255,255,255,.82), transparent) !important;
  border-right:1px solid rgba(148,163,184,.14) !important;
  box-shadow:inset -1px 0 0 rgba(255,255,255,.86) !important;
}
.sidebar-nav a{
  background:linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.48)) !important;
  border:1px solid transparent !important;
}
.sidebar-nav a:hover,.sidebar-nav a.active{
  background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(239,246,255,.86)) !important;
  border-color:rgba(96,165,250,.22) !important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.98), 0 10px 22px rgba(37,99,235,.08) !important;
}

.course-cover{
  background:
    radial-gradient(circle at 20% 18%, rgba(255,255,255,.82), transparent 16%),
    radial-gradient(circle at 72% 30%, rgba(125,211,252,.28), transparent 20%),
    linear-gradient(135deg, rgba(255,255,255,.92), rgba(219,234,254,.72) 45%, rgba(241,245,249,.84)) !important;
}
.course-cover::after{
  background:linear-gradient(180deg, rgba(255,255,255,.04), transparent 34%, rgba(15,23,42,.04) 76%, rgba(15,23,42,.12)) !important;
}

.pill{
  background:rgba(255,255,255,.88) !important;
  border-color:rgba(148,163,184,.18) !important;
  color:#334155 !important;
}
.badge{
  border:1px solid rgba(148,163,184,.16) !important;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.96) !important;
}
.badge-success{background:rgba(34,197,94,.10) !important;color:#15803d !important}
.badge-warning{background:rgba(245,158,11,.12) !important;color:#b45309 !important}
.badge-danger{background:rgba(239,68,68,.10) !important;color:#b91c1c !important}
.badge-primary{background:rgba(37,99,235,.10) !important;color:#1d4ed8 !important}
.badge-muted{background:rgba(148,163,184,.12) !important;color:#475569 !important}

.btn{color:var(--text) !important}
.btn-primary{
  color:#fff !important;
  background:linear-gradient(135deg, rgba(37,99,235,.96), rgba(14,165,233,.96)) !important;
  border-color:rgba(255,255,255,.36) !important;
  box-shadow:0 16px 30px rgba(37,99,235,.18), inset 0 1px 0 rgba(255,255,255,.24) !important;
}
.btn-primary:hover{box-shadow:0 18px 34px rgba(37,99,235,.24), inset 0 1px 0 rgba(255,255,255,.32) !important}
.btn-secondary,.btn-ghost{
  background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(248,250,252,.84)) !important;
  border-color:rgba(148,163,184,.18) !important;
}
.btn-danger{
  background:linear-gradient(180deg, rgba(254,242,242,.96), rgba(254,226,226,.92)) !important;
  border-color:rgba(248,113,113,.22) !important;
  color:#b91c1c !important;
}

.input{
  background:rgba(255,255,255,.84) !important;
  border-color:rgba(148,163,184,.18) !important;
  color:var(--text) !important;
}
.input:hover{background:rgba(255,255,255,.94) !important}
.input:focus{
  border-color:rgba(37,99,235,.28) !important;
  background:rgba(255,255,255,.98) !important;
  box-shadow:0 0 0 4px rgba(37,99,235,.08), inset 0 1px 0 rgba(255,255,255,.96), 0 0 20px rgba(14,165,233,.08) !important;
}
label span{color:#475569 !important}

.progress-bar{
  background:rgba(226,232,240,.92) !important;
}
.progress-bar span{
  background:linear-gradient(90deg, rgba(37,99,235,.98), rgba(14,165,233,.92), rgba(125,211,252,.95)) !important;
  background-size:200% 100% !important;
  animation:loaderSweep 3.6s linear infinite !important;
}

.certificate-sheet{
  background:
    linear-gradient(180deg, rgba(255,255,255,.99), rgba(248,250,252,.99)),
    radial-gradient(circle at top left, rgba(59,130,246,.10), transparent 20%) !important;
  color:#0f172a !important;
  box-shadow:0 24px 50px rgba(15,23,42,.10) !important;
}
.certificate-sheet .muted{color:#64748b !important}
.certificate-meta{border:1px solid rgba(148,163,184,.16) !important}
.signature-line{background:#334155 !important}
.qr-box img{border:1px solid rgba(148,163,184,.16) !important;background:#fff !important}

::-webkit-scrollbar-track{background:rgba(226,232,240,.55) !important}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(125,211,252,.92)) !important;
  border-radius:999px;border:2px solid transparent;background-clip:padding-box !important;
}
::selection{background:rgba(37,99,235,.16) !important;color:#0f172a !important}

@media (max-width:1100px){
  .sidebar{border-bottom:1px solid rgba(148,163,184,.14) !important}
}

.avatar{display:inline-grid;place-items:center;border-radius:999px;overflow:hidden;background:linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.12);box-shadow:0 10px 26px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.1);font-weight:700;color:#fff}
.avatar img{width:100%;height:100%;object-fit:cover;display:block}
.avatar-sm{width:42px;height:42px;font-size:.88rem}
.avatar-md{width:56px;height:56px;font-size:1rem}
.avatar-xl{width:108px;height:108px;font-size:1.8rem}
.avatar-fallback{letter-spacing:.04em}
.sidebar-user{padding:14px 16px}
.topbar-user{justify-content:flex-end}
.profile-avatar-wrap{display:flex;justify-content:center;margin:8px 0 12px}
.divider{height:1px;background:rgba(255,255,255,.08);margin:8px 0}
.dev-note,.flash-dev{padding:14px 16px;border-radius:16px;background:rgba(125,211,252,.08);border:1px solid rgba(125,211,252,.16);box-shadow:var(--shadow-soft)}
.flash-dev{width:min(1180px,92vw);margin:16px auto 0}
.link-inline{display:inline-flex;align-items:center;gap:8px}
.check-row{display:inline-flex;align-items:center;gap:10px;color:var(--text-soft)}
.check-row input{accent-color:var(--primary-strong)}
.input[type=file]{padding:12px;background:rgba(255,255,255,.04)}
@media (max-width: 980px){
  .topbar-user{display:none}
  .dashboard-grid,.builder-layout,.course-detail-grid,.hero-grid,.stats-grid,.glass-grid,.card-grid,.form-grid,.filters{grid-template-columns:1fr}
  .dashboard-shell{grid-template-columns:1fr}
  .sidebar{position:relative;height:auto;border-right:none;border-bottom:1px solid rgba(255,255,255,.07)}
}

.payment-help-stack{display:grid;gap:12px}
.payment-help-card{
  border:1px solid rgba(148,163,184,.18);
  background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,250,252,.92));
  border-radius:20px;
  padding:16px 18px;
  box-shadow:0 18px 48px rgba(15,23,42,.08);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.payment-help-card.is-active{
  border-color:rgba(37,99,235,.24);
  box-shadow:0 22px 56px rgba(37,99,235,.12);
  transform:translateY(-1px);
}
.payment-help-title{font-weight:700;color:#0f172a;margin-bottom:4px}
.payment-meta-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}
.payment-meta-grid div,.payment-note{padding:10px 12px;border-radius:14px;background:rgba(255,255,255,.82);border:1px solid rgba(148,163,184,.16)}
.payment-meta-grid span{display:block;font-size:.76rem;color:#64748b;text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.payment-meta-grid strong{font-size:.95rem;color:#0f172a}
.qr-box{display:grid;justify-items:center;gap:10px}
.qr-frame{
  position:relative;
  padding:14px;
  border-radius:28px;
  background:linear-gradient(145deg, rgba(255,255,255,.98), rgba(241,245,249,.96));
  border:1px solid rgba(148,163,184,.18);
  box-shadow:0 26px 70px rgba(15,23,42,.12), inset 0 1px 0 rgba(255,255,255,.9);
}
.qr-frame::before,.qr-frame::after{
  content:"";
  position:absolute;
  width:18px;height:18px;border-radius:999px;
  background:radial-gradient(circle at 30% 30%, rgba(59,130,246,.92), rgba(15,23,42,.88));
  box-shadow:0 0 0 6px rgba(255,255,255,.92), 0 12px 26px rgba(37,99,235,.18);
}
.qr-frame::before{top:10px;left:10px}
.qr-frame::after{right:10px;bottom:10px}
.qr-box img{width:180px;height:180px;object-fit:contain;border:0 !important;background:#fff !important;border-radius:20px;display:block}
.qr-caption{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:#475569;text-align:center}
@media (max-width: 980px){
  .payment-meta-grid{grid-template-columns:1fr}
}

.lesson-video-wrap{
  margin-top:12px;border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  box-shadow:var(--shadow-soft)
}
.lesson-video{
  display:block;width:100%;max-width:100%;aspect-ratio:16/9;background:#05080d
}

.cover-preview{display:flex;align-items:center;gap:14px;padding:12px;border:1px solid rgba(148,163,184,.24);border-radius:18px;background:rgba(255,255,255,.85)}
.cover-preview-media{width:120px;height:76px;border-radius:16px;background-size:cover;background-position:center;box-shadow:0 12px 28px rgba(15,23,42,.12)}

.student-course-cover{margin:0 0 18px;border-radius:24px;overflow:hidden;box-shadow:0 18px 36px rgba(15,23,42,.10);}


/* Preserve uploaded course cover images on light theme */
.course-cover{
  background-image:
    var(--course-cover-image, none),
    radial-gradient(circle at 20% 18%, rgba(255,255,255,.82), transparent 16%),
    radial-gradient(circle at 72% 30%, rgba(125,211,252,.28), transparent 20%),
    linear-gradient(135deg, rgba(255,255,255,.92), rgba(219,234,254,.72) 45%, rgba(241,245,249,.84)) !important;
  background-size:cover, auto, auto, auto !important;
  background-position:center, center, center, center !important;
  background-repeat:no-repeat !important;
}
.course-cover[style*="--course-cover-image"]::after{
  background:linear-gradient(180deg, rgba(255,255,255,.02), transparent 34%, rgba(15,23,42,.08) 76%, rgba(15,23,42,.24)) !important;
}

/* === Student responsive sidebar + premium certificate update === */
.certificate-container{width:min(1180px,94vw);margin:0 auto}
.certificate-sheet-premium{
  padding:0 !important;
  overflow:hidden;
  border-radius:32px !important;
}
.certificate-ribbon{
  display:flex;justify-content:space-between;align-items:flex-start;gap:20px;
  padding:28px 32px 22px;
  background:linear-gradient(135deg, rgba(37,99,235,.96), rgba(14,165,233,.88));
  color:#fff;
}
.certificate-ribbon .muted{color:rgba(255,255,255,.86) !important}
.certificate-ribbon h1{font-size:2.2rem;line-height:1.02;margin:4px 0 8px;color:#fff}
.certificate-eyebrow{color:rgba(255,255,255,.88) !important;text-shadow:none !important;margin-bottom:0}
.certificate-ribbon-mark{
  padding:10px 16px;border-radius:999px;background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.26);font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap
}
.certificate-content{
  display:grid;grid-template-columns:minmax(0,1.2fr) 290px;gap:26px;align-items:stretch;
  padding:30px 32px 32px;
}
.certificate-main{display:flex;flex-direction:column;gap:18px}
.certificate-copy{font-size:1rem;color:#64748b;text-transform:none}
.certificate-name{font-size:clamp(2.2rem,4vw,3rem);line-height:1.02;letter-spacing:-.045em;margin:0;color:#0f172a}
.certificate-course{font-size:clamp(1.35rem,2vw,1.8rem);line-height:1.08;letter-spacing:-.03em;margin:0;color:#0f172a}
.certificate-meta{grid-template-columns:repeat(2,minmax(0,1fr));margin:0 !important;background:rgba(248,250,252,.9)}
.certificate-bottom{display:flex;justify-content:space-between;gap:18px;align-items:end;flex-wrap:wrap}
.certificate-signature{min-width:260px}
.certificate-actions{display:flex;gap:12px;flex-wrap:wrap}
.certificate-side{display:flex}
.certificate-qr-panel{
  width:100%;display:flex;flex-direction:column;justify-content:center;gap:14px;
  padding:22px;border-radius:28px;
  background:linear-gradient(180deg, rgba(248,250,252,.95), rgba(241,245,249,.92));
  border:1px solid rgba(148,163,184,.18);box-shadow:0 18px 48px rgba(15,23,42,.08), inset 0 1px 0 rgba(255,255,255,.96)
}
.certificate-side-label{font-size:.78rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:#2563eb}
.certificate-sheet-premium .qr-frame{box-shadow:0 18px 42px rgba(15,23,42,.10), inset 0 1px 0 rgba(255,255,255,.96)}
.certificate-sheet-premium .signature-line{width:260px;height:2px;background:linear-gradient(90deg, #0f172a, rgba(15,23,42,.18)) !important}
@media print{
  @page{size:A4 landscape;margin:0}
  body{background:#fff !important}
  .topbar,.footer,.ambient,.page-loader,.flash,.certificate-actions{display:none !important}
  .page-shell,.section,.certificate-container{width:100% !important;margin:0 !important;padding:0 !important;filter:none !important;transform:none !important}
  .certificate-sheet-premium{box-shadow:none !important;border-radius:0 !important;border:none !important;min-height:100vh}
}

.dashboard-topbar-main{display:flex;align-items:center;gap:14px}
.sidebar-toggle{
  display:none;align-items:center;gap:10px;padding:11px 14px;border-radius:16px;border:1px solid rgba(148,163,184,.18);
  background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(248,250,252,.84));color:#0f172a;font-weight:700;
  box-shadow:0 12px 28px rgba(15,23,42,.08), inset 0 1px 0 rgba(255,255,255,.98);cursor:pointer
}
.sidebar-toggle-icon,.sidebar-toggle-icon::before,.sidebar-toggle-icon::after{
  display:block;position:relative;width:18px;height:2px;border-radius:999px;background:#0f172a;content:""
}
.sidebar-toggle-icon::before{position:absolute;top:-6px;left:0}
.sidebar-toggle-icon::after{position:absolute;top:6px;left:0}
.sidebar-backdrop{display:none}

@media (max-width: 980px){
  .certificate-content{grid-template-columns:1fr;gap:20px;padding:22px}
  .certificate-ribbon{padding:22px 22px 18px;flex-direction:column;align-items:flex-start}
  .certificate-ribbon h1{font-size:1.8rem}
  .certificate-meta{grid-template-columns:1fr}
  .certificate-bottom{align-items:flex-start}
  .certificate-actions{width:100%}
  .certificate-actions .btn{flex:1 1 180px}
  body.layout-student .dashboard-shell{grid-template-columns:1fr}
  body.layout-student .sidebar-toggle{display:inline-flex}
  body.layout-student .sidebar-student{
    position:fixed;top:0;left:0;z-index:90;width:min(320px,88vw);height:100vh;overflow:auto;border-right:1px solid rgba(148,163,184,.16) !important;
    transform:translateX(-104%);transition:transform .28s cubic-bezier(.22,1,.36,1), box-shadow .28s ease;
    box-shadow:none !important
  }
  body.layout-student.sidebar-open .sidebar-student{transform:translateX(0);box-shadow:0 30px 70px rgba(15,23,42,.18) !important}
  body.layout-student .sidebar-backdrop{
    display:block;position:fixed;inset:0;z-index:80;border:0;background:rgba(15,23,42,.32);opacity:0;pointer-events:none;
    transition:opacity .24s ease;backdrop-filter:blur(4px)
  }
  body.layout-student.sidebar-open .sidebar-backdrop{opacity:1;pointer-events:auto}
  body.layout-student .dashboard-main{padding-top:18px}
}


/* === Certificate wall edition === */
.certificate-sheet-wall{
  background:
    radial-gradient(circle at top right, rgba(59,130,246,.12), transparent 26%),
    radial-gradient(circle at bottom left, rgba(148,163,184,.12), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.96));
  border:1px solid rgba(148,163,184,.20);
}
.certificate-sheet-wall .certificate-ribbon{
  background:linear-gradient(135deg, #0f172a, #1e3a8a 62%, #60a5fa 110%);
}
.certificate-sheet-wall .certificate-content{align-items:stretch}
.certificate-highlight{
  display:flex;flex-direction:column;gap:8px;padding:16px 18px;border-radius:22px;
  background:linear-gradient(180deg, rgba(241,245,249,.96), rgba(255,255,255,.98));
  border:1px solid rgba(148,163,184,.18);box-shadow:inset 0 1px 0 rgba(255,255,255,.95);
}
.certificate-highlight strong{font-size:1rem;letter-spacing:.08em;text-transform:uppercase;color:#0f172a}
.certificate-highlight span{color:#475569;line-height:1.55}
.certificate-meta-rich{grid-template-columns:repeat(3,minmax(0,1fr)) !important;gap:14px}
.certificate-meta-rich div{
  padding:14px 16px;border-radius:18px;background:rgba(255,255,255,.82);
  border:1px solid rgba(148,163,184,.14);box-shadow:0 8px 20px rgba(15,23,42,.05);
}
.certificate-meta-rich strong{display:block;margin-top:6px;color:#0f172a;line-height:1.35}
.certificate-side-code{
  margin-top:14px;padding:10px 12px;border-radius:14px;text-align:center;font-weight:800;
  letter-spacing:.14em;font-size:.82rem;color:#0f172a;background:rgba(255,255,255,.84);
  border:1px solid rgba(148,163,184,.16)
}
@media (max-width: 900px){
  .certificate-meta-rich{grid-template-columns:repeat(2,minmax(0,1fr)) !important}
}
@media (max-width: 640px){
  .certificate-meta-rich{grid-template-columns:1fr !important}
}


/* === Certificate refinement: ordered premium layout === */
.certificate-sheet-steve{
  background:
    linear-gradient(180deg, rgba(255,255,255,.985), rgba(249,250,252,.985)),
    linear-gradient(135deg, rgba(37,99,235,.045), transparent 38%),
    linear-gradient(225deg, rgba(212,175,55,.06), transparent 32%) !important;
  border:1px solid rgba(15,23,42,.08) !important;
  box-shadow:0 28px 80px rgba(15,23,42,.12), inset 0 1px 0 rgba(255,255,255,.98) !important;
}
.certificate-topband{
  display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
  padding:28px 34px 18px;
  border-bottom:1px solid rgba(15,23,42,.08);
  background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(248,250,252,.78));
}
.certificate-brand-stack{display:flex;flex-direction:column;gap:6px}
.certificate-kicker{
  color:#475569;font-size:.86rem;letter-spacing:.16em;text-transform:uppercase;font-weight:800;
}
.certificate-content-steve{
  grid-template-columns:minmax(0,1.28fr) 278px;
  gap:28px;
  padding:34px;
}
.certificate-main-steve{gap:20px;justify-content:center}
.certificate-main-steve .certificate-copy{
  text-transform:uppercase;letter-spacing:.18em;font-size:.76rem;color:#64748b;font-weight:800;
}
.certificate-main-steve .certificate-name{
  font-size:clamp(2.4rem,4.6vw,3.4rem);
  line-height:.98;
  letter-spacing:-.055em;
  max-width:14ch;
}
.certificate-main-steve .certificate-course{
  font-size:clamp(1.45rem,2.4vw,2rem);
  line-height:1.06;
  letter-spacing:-.035em;
  max-width:18ch;
}
.certificate-issuer-strip{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:14px 18px;border-radius:18px;
  background:linear-gradient(135deg, rgba(15,23,42,.045), rgba(255,255,255,.94));
  border:1px solid rgba(15,23,42,.08);
}
.certificate-issuer-strip span:first-child{font-weight:800;color:#0f172a}
.certificate-issuer-strip span:last-child{color:#64748b}
.certificate-meta-ordered{
  grid-template-columns:repeat(2,minmax(0,1fr)) !important;
  gap:14px;
  padding:18px !important;
  border-radius:22px !important;
  background:linear-gradient(180deg, rgba(248,250,252,.96), rgba(241,245,249,.9)) !important;
  border:1px solid rgba(148,163,184,.18) !important;
}
.certificate-meta-ordered div{
  padding:12px 14px;border-radius:16px;background:rgba(255,255,255,.9);border:1px solid rgba(148,163,184,.14);
}
.certificate-meta-ordered strong{display:block;margin-top:6px;color:#0f172a;line-height:1.3}
.certificate-bottom-ordered{padding-top:6px;align-items:center}
.certificate-signature-wrap{display:flex;align-items:end;gap:18px;flex-wrap:wrap}
.certificate-seal{
  width:124px;height:124px;border-radius:999px;display:grid;place-items:center;text-align:center;
  padding:18px;font-size:.82rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  color:#0f172a;background:radial-gradient(circle at 30% 30%, rgba(255,255,255,.98), rgba(236,221,173,.96) 62%, rgba(197,155,63,.92));
  border:1px solid rgba(188,146,53,.44);box-shadow:0 16px 32px rgba(186,146,55,.18), inset 0 1px 0 rgba(255,255,255,.98);
}
.certificate-side-steve .certificate-qr-panel{
  gap:16px;
  background:linear-gradient(180deg, rgba(250,250,251,.98), rgba(242,245,249,.94));
}
.certificate-side-steve .qr-frame{
  padding:14px;border-radius:24px;background:#fff;border:1px solid rgba(15,23,42,.08);
}
.certificate-side-url{font-size:.74rem;color:#64748b;word-break:break-word;line-height:1.45}
@media (max-width: 980px){
  .certificate-content-steve{grid-template-columns:1fr;padding:24px}
  .certificate-topband{padding:22px 22px 16px;flex-direction:column;align-items:flex-start}
  .certificate-main-steve .certificate-name,.certificate-main-steve .certificate-course{max-width:none}
  .certificate-meta-ordered{grid-template-columns:1fr !important}
  .certificate-bottom-ordered{align-items:flex-start}
}


/* === UI refinements: module toggle + clean certificate === */
.accordion summary{
  position:relative;
  padding-right:156px;
  min-height:52px;
  display:flex;
  align-items:flex-start;
}
.accordion summary::after{
  content:"⊕ Expandir";
  position:absolute;
  right:0;
  top:-2px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:124px;
  padding:9px 13px;
  border-radius:999px;
  border:1px solid rgba(37,99,235,.22);
  background:linear-gradient(180deg,#f7fbff,#e3efff);
  color:#1e3a8a;
  box-shadow:0 10px 24px rgba(37,99,235,.16);
  font-size:.8rem;
  font-weight:800;
  letter-spacing:.02em;
}
.accordion[open] summary::after{
  content:"⊖ Minimizar";
  background:linear-gradient(180deg,#eef4ff,#d9e8ff);
  color:#16377c;
}
.accordion .accordion-body{padding-top:18px;}
.certificate-sheet-minimal{
  padding:34px;
  background:linear-gradient(180deg,#ffffff,#f7f9fc);
  border:1px solid rgba(15,23,42,.08);
  color:#0f172a;
}
.certificate-header-bar{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:18px;
  padding-bottom:18px;
  border-bottom:1px solid rgba(15,23,42,.08);
}
.certificate-header-copy{color:#516074;font-size:.95rem;}
.certificate-header-status{
  padding:10px 14px;
  border-radius:999px;
  background:#eef4ff;
  border:1px solid rgba(37,99,235,.12);
  color:#23438d;
  font-size:.82rem;
  font-weight:700;
}
.certificate-grid-simple{
  display:grid;
  grid-template-columns:1.35fr .75fr;
  gap:26px;
  margin-top:24px;
}
.certificate-main-simple{display:flex;flex-direction:column;gap:18px;}
.certificate-description{margin:0;color:#5c6878;line-height:1.7;max-width:780px;}
.certificate-meta-simple{
  grid-template-columns:repeat(2,1fr);
  margin:0;
  padding:0;
  border:none;
  gap:14px;
}
.certificate-meta-simple > div,
.certificate-side-list > div{
  padding:14px 16px;
  border-radius:18px;
  background:#f8fbff;
  border:1px solid rgba(15,23,42,.08);
}
.certificate-meta-simple span,
.certificate-side-list span{
  display:block;
  color:#5d6b7b;
  font-size:.82rem;
  margin-bottom:6px;
}
.certificate-meta-simple strong,
.certificate-side-list strong{display:block;line-height:1.45;word-break:break-word;}
.certificate-signatures{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.certificate-validation-bar{padding:14px 16px;border-radius:18px;background:#f4f8ff;border:1px solid rgba(37,99,235,.14);display:flex;flex-direction:column;gap:6px;}
.certificate-validation-bar span{display:block;color:#43608e;font-size:.82rem;font-weight:700;}
.certificate-validation-bar strong{display:block;color:#0f172a;line-height:1.45;word-break:break-word;font-size:.93rem;}
.certificate-signature-card{
  padding:20px 18px;
  border-radius:18px;
  background:#fff;
  border:1px solid rgba(15,23,42,.08);
}
.certificate-side-simple{
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:22px;
  border-radius:24px;
  background:#f3f7fc;
  border:1px solid rgba(15,23,42,.08);
}
.certificate-side-label{font-size:.9rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#35518f;}
.qr-box-clean img{width:100%;max-width:220px;height:auto;border-radius:20px;padding:12px;background:#fff;}
.certificate-side-list{display:flex;flex-direction:column;gap:12px;}

@media (max-width:900px){
  .certificate-grid-simple,
  .certificate-signatures,
  .certificate-meta-simple{grid-template-columns:1fr;}
  .certificate-validation-bar strong{font-size:.88rem;}
}
@media (max-width:720px){
  .accordion summary{padding-right:0;padding-bottom:44px;}
  .accordion summary::after{top:auto;bottom:0;right:0;}
  .certificate-sheet-minimal{padding:22px;}
}

/* === Public mobile drawer aligned with student mobile menu === */
.topbar-shell{gap:18px}
.topbar-start{min-width:0}
.public-sidebar-toggle{display:none}
.sidebar-public{display:none}
.sidebar-backdrop-public{display:none}
@media (max-width: 980px){
  body.layout-main .public-sidebar-toggle{display:inline-flex}
  body.layout-main .nav-desktop{display:none}
  body.layout-main .topbar .container{flex-direction:row;align-items:center;justify-content:space-between}
  body.layout-main .sidebar-public{
    display:flex;flex-direction:column;
    position:fixed;top:0;left:0;z-index:90;width:min(320px,88vw);height:100vh;overflow:auto;
    padding:20px 18px 18px;
    background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.98));
    border-right:1px solid rgba(148,163,184,.16);
    box-shadow:none;
    transform:translateX(-104%);
    transition:transform .28s cubic-bezier(.22,1,.36,1), box-shadow .28s ease;
  }
  body.layout-main.public-nav-open .sidebar-public{
    transform:translateX(0);
    box-shadow:0 30px 70px rgba(15,23,42,.18);
  }
  body.layout-main .sidebar-backdrop-public{
    display:block;position:fixed;inset:0;z-index:80;border:0;background:rgba(15,23,42,.32);opacity:0;pointer-events:none;
    transition:opacity .24s ease;backdrop-filter:blur(4px)
  }
  body.layout-main.public-nav-open .sidebar-backdrop-public{opacity:1;pointer-events:auto}
  body.layout-main .sidebar-public .sidebar-nav{margin-top:20px}
  body.layout-main .sidebar-public .sidebar-foot{margin-top:auto;padding-top:18px;display:flex;flex-direction:column;gap:12px}
}


/* === Lesson materials contextual upload === */
.builder-summary{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  width:100%;
  padding-right:148px;
}
.btn-material-inline{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 14px;
  border-radius:999px;
  text-decoration:none;
  background:linear-gradient(180deg,#f1fff4,#dcfce7);
  border:1px solid rgba(22,163,74,.24);
  color:#166534;
  box-shadow:0 10px 20px rgba(34,197,94,.12);
  font-weight:800;
  position:relative;
  z-index:2;
}
.btn-material-inline:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(34,197,94,.16)}
.btn-material-plus{
  width:24px;height:24px;border-radius:999px;display:grid;place-items:center;
  background:#16a34a;color:#fff;font-size:1rem;font-weight:900;line-height:1;
  box-shadow:0 8px 16px rgba(22,163,74,.24);
}
.lesson-materials{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:14px;
}
.material-pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  max-width:100%;
  padding:9px 12px;
  border-radius:16px;
  text-decoration:none;
  background:linear-gradient(180deg,#ffffff,#f8fafc);
  border:1px solid rgba(15,23,42,.09);
  color:#0f172a;
  box-shadow:0 8px 18px rgba(15,23,42,.06);
}
.material-pill:hover{transform:translateY(-1px);box-shadow:0 12px 24px rgba(15,23,42,.08)}
.material-kind{
  min-width:42px;
  height:32px;
  padding:0 10px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.72rem;
  font-weight:900;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.material-kind-image{background:#eef6ff;color:#2456b3}
.material-kind-pdf{background:#fff1f2;color:#be123c}
.material-kind-audio{background:#eefcf3;color:#166534}
.material-kind-doc{background:#f8fafc;color:#334155}
.material-name{
  font-size:.88rem;
  line-height:1.2;
  color:#0f172a;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  max-width:240px;
}
.material-delete{
  border:none;
  background:transparent;
  color:#b91c1c;
  font-weight:700;
  cursor:pointer;
  padding:8px 2px;
}
@media (max-width: 720px){
  .builder-summary{padding-right:0;flex-direction:column;align-items:flex-start}
  .btn-material-inline{margin-top:8px}
  .material-name{max-width:160px}
}

.student-course-layout{
  display:block;
}
.student-course-main{min-width:0;}
.student-module-body{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:20px;
  align-items:start;
}
.student-module-lessons{min-width:0;}
.lesson-nav-group{padding:14px 16px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f8fafc);border:1px solid rgba(15,23,42,.08);box-shadow:0 10px 24px rgba(15,23,42,.05);position:sticky;top:92px;}
.lesson-nav-group-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.module-progress-chip{display:inline-flex;align-items:center;justify-content:center;min-width:64px;padding:7px 12px;border-radius:999px;background:rgba(37,99,235,.09);color:#1d4ed8;font-weight:800;font-size:.84rem;}
.lesson-nav-links{display:grid;gap:10px;}
.lesson-nav-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:14px;text-decoration:none;background:#fff;color:#0f172a;border:1px solid rgba(15,23,42,.08);transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;}
.lesson-nav-link:hover{transform:translateY(-1px);box-shadow:0 12px 20px rgba(15,23,42,.06);border-color:rgba(37,99,235,.18);}
.lesson-nav-link.is-complete{background:linear-gradient(180deg,#effcf4,#f8fffb);border-color:rgba(34,197,94,.25);}
.lesson-nav-title{font-size:.92rem;font-weight:700;line-height:1.25;flex:1;}
.lesson-nav-state{font-size:.76rem;font-weight:800;color:#475569;white-space:nowrap;}
.student-module-summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-width:0;width:100%;}
.student-module-summary strong{display:block;font-size:1rem;}
.student-module-panel .accordion-body{padding-top:18px;}
.lesson-stack{gap:16px;}
.lesson-card-student{display:grid;grid-template-columns:minmax(0,1fr) 104px;align-items:start;gap:18px;padding:20px 22px;}
.lesson-card-main{min-width:0;}
.lesson-card-head{display:grid;gap:10px;margin-bottom:12px;}
.lesson-card-side{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:14px 10px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f8fafc);border:1px solid rgba(15,23,42,.08);box-shadow:inset 0 1px 0 rgba(255,255,255,.9);}
.lesson-progress-value{font-size:1.2rem;font-weight:900;color:#0f172a;line-height:1;}
.lesson-progress-copy{font-size:.78rem;font-weight:800;color:#475569;text-align:center;}
.lesson-video-wrap{max-width:720px;margin-right:auto;}
.lesson-video{width:100%;border-radius:20px;background:#000;display:block;}
.lesson-copy{max-width:720px;line-height:1.75;color:#334155;font-size:.96rem;}
.lesson-material-block{margin-top:16px;max-width:720px;}
.lesson-material-heading{text-align:center;font-size:.82rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase;color:#475569;margin-bottom:12px;}
.lesson-materials-student{display:flex;flex-wrap:wrap;gap:12px;align-items:stretch;}
.material-card{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:10px;width:170px;max-width:100%;padding:14px 12px;border-radius:18px;background:linear-gradient(180deg,#ffffff,#f8fafc);border:1px solid rgba(15,23,42,.08);box-shadow:0 10px 20px rgba(15,23,42,.05);text-align:center;}
.material-card .material-kind{margin:0 auto;}
.material-name-full{max-width:100%;white-space:normal;overflow:visible;text-overflow:initial;font-size:.84rem;line-height:1.35;min-height:40px;}
.material-download-btn{width:100%;justify-content:center;}
.lesson-materials-admin{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
@media (max-width: 1100px){
  .student-module-body{grid-template-columns:1fr;}
  .lesson-nav-group{position:static;}
}
@media (max-width: 780px){
  .lesson-card-student{grid-template-columns:1fr;}
  .lesson-card-side{flex-direction:row;justify-content:space-between;}
  .lesson-video-wrap,.lesson-copy,.lesson-material-block{max-width:100%;}
  .material-card{width:100%;align-items:flex-start;text-align:left;}
  .material-card .material-kind{margin:0;}
  .material-download-btn{width:auto;}
}


/* === Student course refinements: centered cover art + simpler completion copy === */
.lesson-card-side{min-height:64px;justify-content:center;}
.lesson-progress-copy.progress-pill-copy{font-size:.84rem;font-weight:900;letter-spacing:.01em;color:#1d4ed8;text-align:center;}
.student-course-cover{position:relative;min-height:258px;background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(241,245,249,.92)) !important;}
.student-course-cover::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 8px 8px, rgba(15,23,42,.05) 1.3px, transparent 1.4px),linear-gradient(135deg, transparent 0 46%, rgba(15,23,42,.035) 46% 48%, transparent 48% 100%),linear-gradient(45deg, transparent 0 46%, rgba(15,23,42,.035) 46% 48%, transparent 48% 100%);background-size:22px 22px, 118px 118px, 118px 118px;background-position:left top, left center, right center;opacity:.75;pointer-events:none;}
.student-course-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.14) 16%, rgba(255,255,255,0) 28%, rgba(255,255,255,0) 72%, rgba(255,255,255,.14) 84%, rgba(255,255,255,.98) 100%);pointer-events:none;}
.student-course-cover .pill{z-index:4;}
.student-course-cover-center{position:absolute;top:22px;bottom:22px;left:14%;right:14%;border-radius:24px;background:linear-gradient(180deg, rgba(255,255,255,.93), rgba(255,255,255,.84));border:1px solid rgba(15,23,42,.08);box-shadow:0 18px 38px rgba(15,23,42,.10), inset 0 1px 0 rgba(255,255,255,.95);display:flex;align-items:center;justify-content:center;overflow:hidden;z-index:2;}
.student-course-cover-media{width:100%;height:100%;background-image:var(--course-cover-image, none);background-repeat:no-repeat;background-position:center center;background-size:contain;filter:drop-shadow(0 14px 26px rgba(15,23,42,.10));}
@media (max-width: 980px){.student-course-cover-center{left:10%;right:10%;}}
@media (max-width: 780px){.student-course-cover{min-height:220px;}.student-course-cover-center{left:6%;right:6%;top:18px;bottom:18px;border-radius:20px;}.lesson-progress-copy.progress-pill-copy{text-align:left;}}


/* vNext core update */
.check-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:12px}
.check-card{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid rgba(31,41,55,.12);border-radius:14px;background:#fff;box-shadow:0 12px 30px rgba(15,23,42,.06)}
.hero-code{font-size:32px;font-weight:800;letter-spacing:.08em;padding:14px 16px;border-radius:18px;background:linear-gradient(135deg,#fff,#eef5ff);border:1px solid rgba(59,130,246,.18);margin:10px 0 14px;color:#0f172a}
.sidebar-nav a[href$="/admin/system/upgrade"],.sidebar-nav a[href$="/admin/analytics"],.sidebar-nav a[href$="/admin/crm"]{font-weight:600}

/* Nova Framework UI layer */
:root{
  --bg:#eef4f8;
  --bg-soft:#f8fbfd;
  --bg-elevated:rgba(255,255,255,.86);
  --panel:rgba(255,255,255,.86);
  --panel-strong:rgba(255,255,255,.96);
  --line:rgba(71,85,105,.13);
  --line-strong:rgba(37,99,235,.22);
  --text:#142033;
  --text-soft:#334155;
  --muted:#64748b;
  --primary:#2563eb;
  --primary-strong:#1d4ed8;
  --secondary:#0f766e;
  --accent:#d97706;
  --success:#059669;
  --warning:#b45309;
  --danger:#dc2626;
  --shadow:0 22px 55px rgba(20,32,51,.12);
  --shadow-soft:0 12px 32px rgba(20,32,51,.08);
  --radius:18px;
  --radius-sm:12px;
  --blur:18px;
}
body{
  background:
    linear-gradient(180deg, rgba(255,255,255,.86), rgba(238,244,248,.82) 42%, rgba(231,239,246,.94)),
    linear-gradient(120deg, rgba(37,99,235,.08), transparent 32%, rgba(15,118,110,.08) 70%, rgba(217,119,6,.07)) !important;
  color:var(--text) !important;
}
body::before{
  opacity:.32 !important;
  background-image:linear-gradient(rgba(71,85,105,.055) 1px, transparent 1px),linear-gradient(90deg, rgba(71,85,105,.055) 1px, transparent 1px) !important;
  background-size:40px 40px !important;
  mask-image:linear-gradient(180deg, black, transparent 86%) !important;
}
.ambient{display:none !important}
.icon,.nav-icon,.action-icon{
  width:1.08em;height:1.08em;display:inline-block;flex:0 0 auto;
  stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none;
}
.icon *,.nav-icon *,.action-icon *{vector-effect:non-scaling-stroke}
.brand-icon{
  width:20px;height:20px;display:block;fill:currentColor;stroke:none;
}
.brand-mark{
  border-radius:16px !important;
  background:
    linear-gradient(145deg, rgba(37,99,235,.98), rgba(15,118,110,.9)),
    linear-gradient(180deg, rgba(255,255,255,.24), transparent) !important;
  color:#fff !important;
  border-color:rgba(255,255,255,.45) !important;
  box-shadow:0 16px 34px rgba(37,99,235,.18), inset 0 1px 0 rgba(255,255,255,.38) !important;
}
.nav-icon{width:18px;height:18px;color:#475569;transition:color var(--transition),transform var(--transition)}
.sidebar-nav a.active .nav-icon,.sidebar-nav a:hover .nav-icon,.nav a.active .nav-icon,.nav a:hover .nav-icon{color:var(--primary);transform:scale(1.04)}
.nav-label{min-width:0}
.btn .action-icon{width:17px;height:17px;opacity:.86}
.btn-primary .action-icon{opacity:1}
.btn-danger .action-icon{color:currentColor}
.btn,.sidebar-nav a,.nav>a:not(.btn),.input,.panel,.course-card,.metric-card,.stat-card,.lesson-card{
  transition:transform var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition),color var(--transition),opacity var(--transition) !important;
}
.panel,.course-card,.metric-card,.stat-card,.lesson-card,.certificate-sheet,.accordion,.flash,.table-wrap{
  border-color:var(--line) !important;
  box-shadow:var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.96) !important;
}
.course-card,.stat-card,.metric-card{
  content-visibility:auto;
  contain-intrinsic-size:1px 260px;
}
.topbar{
  background:rgba(255,255,255,.78) !important;
  border-bottom:1px solid rgba(71,85,105,.12) !important;
  box-shadow:0 12px 30px rgba(20,32,51,.06) !important;
}
.sidebar{
  background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(248,251,253,.84)) !important;
}
.sidebar-nav a{
  color:#243247 !important;
  border-radius:14px !important;
}
.sidebar-nav a.active{
  color:#0f172a !important;
  background:linear-gradient(180deg, rgba(239,246,255,.98), rgba(236,253,245,.78)) !important;
}
.eyebrow{color:var(--primary) !important;letter-spacing:.14em !important}
.btn-primary{
  background:linear-gradient(135deg, #2563eb, #0f766e) !important;
  box-shadow:0 18px 34px rgba(37,99,235,.19), inset 0 1px 0 rgba(255,255,255,.28) !important;
}
.btn-secondary{
  color:#163047 !important;
  background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(241,245,249,.92)) !important;
}
.btn-ghost{
  color:#243247 !important;
  background:rgba(255,255,255,.58) !important;
}
.badge-success{background:rgba(5,150,105,.11) !important;color:#047857 !important}
.badge-warning{background:rgba(217,119,6,.12) !important;color:#92400e !important}
.badge-danger{background:rgba(220,38,38,.10) !important;color:#b91c1c !important}
.badge-primary{background:rgba(37,99,235,.10) !important;color:#1d4ed8 !important}
.course-cover{
  border-bottom:1px solid rgba(71,85,105,.08);
  background:
    linear-gradient(135deg, rgba(255,255,255,.96), rgba(219,234,254,.78) 44%, rgba(209,250,229,.54) 100%),
    linear-gradient(45deg, rgba(217,119,6,.10), transparent) !important;
}
.progress-bar span{background:linear-gradient(90deg, #2563eb, #0f766e, #d97706) !important}
.flash{border-left:4px solid var(--primary) !important}
.flash-success{border-left-color:var(--success) !important}
.flash-error{border-left-color:var(--danger) !important}
a:focus-visible,button:focus-visible,.input:focus-visible,summary:focus-visible{
  outline:3px solid rgba(37,99,235,.22);
  outline-offset:3px;
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .page-shell{opacity:1 !important;transform:none !important;filter:none !important}
}