/*************************************************************
 * BMGPHYSICS LMS — style.css
 * Theme: deep-lab green + a sine-wave signature motif (physics/oscilloscope)
 *************************************************************/

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600&display=swap');

:root{
  --bg:            #071815;
  --bg-alt:        #0c211c;
  --surface:       #0f2a23;
  --surface-2:     #133a30;
  --card-grad:     linear-gradient(150deg, #143a2c 0%, #0a1f1a 65%, #081714 100%);
  --card-border:   rgba(79, 224, 138, 0.18);
  --accent:        #3fdb8c;
  --accent-2:      #8ff5c8;
  --accent-dim:    #1f7a4e;
  --amber:         #ffb648;
  --danger:        #ff6b6b;
  --text:          #eafff4;
  --text-muted:    #9cc9b8;
  --text-faint:    #5f8a79;
  --radius:        16px;
  --radius-sm:     10px;
  --font-display:  'Space Grotesk', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
  --shadow-card:   0 10px 30px rgba(0,0,0,0.35);
  --max-width:     1180px;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; }

body{
  background: radial-gradient(ellipse at top, #0c2620 0%, var(--bg) 55%) fixed;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a{ color: inherit; text-decoration: none; }
ul{ list-style: none; }
button{ font-family: inherit; cursor: pointer; }
input, select, textarea{ font-family: inherit; }
img{ max-width: 100%; display:block; }

.container{ max-width: var(--max-width); margin: 0 auto; padding: 0 24px; width: 100%; }

/* ---------------- Sine wave signature motif ---------------- */
.wave-divider{ width:100%; height:28px; overflow:hidden; line-height:0; }
.wave-divider svg{ width:100%; height:100%; }
.wave-rule{ position:relative; height:2px; width:100%; background:
  repeating-linear-gradient(90deg, transparent 0 2px, var(--accent-dim) 2px 4px);
  opacity:.5; margin: 32px 0; }

/* ---------------- Navigation ---------------- */
.navbar{
  position: sticky; top:0; z-index: 100;
  background: rgba(7, 24, 21, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
}
.navbar .container{ display:flex; align-items:center; justify-content:space-between; height:68px; }
.brand{ display:flex; align-items:center; gap:10px; font-family: var(--font-display); font-weight:700; font-size:1.3rem; letter-spacing:.5px; }
.brand .brand-mark{
  width:34px; height:34px; border-radius:9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-weight:700; color:#052015; font-size:.85rem;
}
.brand .accent-word{ color: var(--accent); }

.nav-links{ display:flex; align-items:center; gap:6px; }
.nav-links a{
  padding:9px 14px; border-radius:999px; font-size:.92rem; font-weight:500;
  color: var(--text-muted); transition: all .18s ease;
}
.nav-links a:hover, .nav-links a.active{ color:var(--bg); background: var(--accent); }
.nav-links .nav-cta{ background: transparent; border:1px solid var(--accent); color:var(--accent); }
.nav-links .nav-cta:hover{ background: var(--accent); color:var(--bg); }

.nav-toggle{ display:none; background:none; border:none; color:var(--text); font-size:1.5rem; }

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 12px 22px; border-radius: 999px; border:none; font-weight:600; font-size:.95rem;
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn-primary{ background: linear-gradient(135deg, var(--accent), #2bb873); color:#04150f; box-shadow: 0 6px 20px rgba(63,219,140,.25); }
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 26px rgba(63,219,140,.35); }
.btn-outline{ background: transparent; border:1px solid rgba(255,255,255,.2); color:var(--text); }
.btn-outline:hover{ border-color: var(--accent); color: var(--accent); }
.btn-danger{ background: rgba(255,107,107,.12); color:var(--danger); border:1px solid rgba(255,107,107,.35); }
.btn-danger:hover{ background: rgba(255,107,107,.2); }
.btn-sm{ padding:8px 16px; font-size:.82rem; }
.btn:disabled{ opacity:.45; cursor:not-allowed; transform:none; }
.btn-block{ width:100%; }

/* ---------------- Cards (gradient, signature) ---------------- */
.card{
  background: var(--card-grad);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 26px;
  position: relative;
  overflow: hidden;
}
.card::before{
  content:''; position:absolute; inset:0; border-radius: inherit; padding:1px;
  background: linear-gradient(135deg, rgba(79,224,138,.35), transparent 40%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events:none;
}
.card-glow{ position:absolute; width:220px; height:220px; border-radius:50%;
  background: radial-gradient(circle, rgba(79,224,138,.28), transparent 70%);
  top:-90px; right:-90px; pointer-events:none; }

.grid{ display:grid; gap:22px; }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }

/* ---------------- Typography ---------------- */
h1,h2,h3,h4{ font-family: var(--font-display); font-weight:700; line-height:1.15; }
h1{ font-size: clamp(2.1rem, 4vw, 3.2rem); }
h2{ font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3{ font-size: 1.25rem; }
.eyebrow{ font-family: var(--font-mono); font-size:.75rem; letter-spacing:2px; text-transform:uppercase; color:var(--accent); }
.text-muted{ color: var(--text-muted); }
.mono{ font-family: var(--font-mono); }

/* ---------------- Forms ---------------- */
.field{ margin-bottom:18px; display:flex; flex-direction:column; gap:6px; }
.field label{ font-size:.85rem; font-weight:600; color: var(--text-muted); }
.field input, .field select, .field textarea{
  background: rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.12);
  color: var(--text); padding: 12px 14px; border-radius: var(--radius-sm); font-size:.95rem;
  outline:none; transition: border-color .15s ease, background .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  border-color: var(--accent); background: rgba(63,219,140,.06);
}
.field .hint{ font-size:.78rem; color: var(--text-faint); }
.field .error{ font-size:.8rem; color: var(--danger); display:none; }
.field.has-error input, .field.has-error select{ border-color: var(--danger); }
.field.has-error .error{ display:block; }
.field.locked input{ opacity:.6; cursor:not-allowed; }

.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap:16px; }

/* ---------------- Alerts / banners ---------------- */
.alert{ padding:14px 18px; border-radius: var(--radius-sm); font-size:.9rem; margin-bottom:18px; display:none; }
.alert.show{ display:block; }
.alert-error{ background: rgba(255,107,107,.12); border:1px solid rgba(255,107,107,.35); color:#ffb3b3; }
.alert-success{ background: rgba(63,219,140,.12); border:1px solid rgba(63,219,140,.35); color: var(--accent-2); }
.alert-info{ background: rgba(143,245,200,.08); border:1px solid rgba(143,245,200,.25); color: var(--text); }

.badge{ display:inline-block; padding:4px 12px; border-radius:999px; font-size:.72rem; font-weight:700; letter-spacing:.4px; text-transform:uppercase; }
.badge-pending{ background: rgba(255,182,72,.15); color: var(--amber); }
.badge-approved{ background: rgba(63,219,140,.15); color: var(--accent); }
.badge-rejected{ background: rgba(255,107,107,.15); color: var(--danger); }
.badge-expired{ background: rgba(255,255,255,.08); color: var(--text-muted); }

/* ---------------- Tables (admin) ---------------- */
.table-wrap{ overflow-x:auto; border-radius: var(--radius); border:1px solid var(--card-border); }
table{ width:100%; border-collapse: collapse; min-width:640px; }
th, td{ text-align:left; padding:12px 16px; font-size:.88rem; border-bottom:1px solid rgba(255,255,255,.06); }
th{ font-family: var(--font-mono); font-size:.72rem; letter-spacing:1px; text-transform:uppercase; color: var(--text-muted); background: rgba(255,255,255,.02); }
tbody tr:hover{ background: rgba(63,219,140,.04); }

/* ---------------- Modal ---------------- */
.modal-backdrop{ position:fixed; inset:0; background: rgba(3,12,10,.75); backdrop-filter: blur(4px);
  display:none; align-items:center; justify-content:center; z-index:1000; padding:20px; }
.modal-backdrop.show{ display:flex; }
.modal{ background: var(--card-grad); border:1px solid var(--card-border); border-radius: var(--radius);
  max-width:560px; width:100%; max-height:88vh; overflow-y:auto; padding:28px; position:relative; box-shadow: var(--shadow-card); }
.modal-close{ position:absolute; top:16px; right:16px; background:none; border:none; color:var(--text-muted); font-size:1.4rem; }
.modal-close:hover{ color: var(--text); }

/* ---------------- Footer ---------------- */
footer{ margin-top:auto; border-top:1px solid var(--card-border); padding:26px 0; text-align:center; }
footer p{ font-size:.82rem; color: var(--text-faint); }
footer .credit-link{ color: var(--accent); font-weight:600; }

/* ---------------- Loader ---------------- */
.spinner{ width:18px; height:18px; border-radius:50%; border:2px solid rgba(255,255,255,.25); border-top-color: var(--accent); animation: spin .7s linear infinite; display:inline-block; }
@keyframes spin{ to{ transform: rotate(360deg); } }
.skeleton{ background: linear-gradient(90deg, rgba(255,255,255,.04) 25%, rgba(255,255,255,.09) 37%, rgba(255,255,255,.04) 63%); background-size:400% 100%; animation: shimmer 1.4s ease infinite; border-radius: var(--radius-sm); }
@keyframes shimmer{ 0%{background-position:100% 0;} 100%{background-position:0 0;} }

/* ---------------- Floating Buy Books button ---------------- */
.buy-books-fab{
  position: fixed; bottom: 26px; right: 26px; z-index: 500;
  display:flex; align-items:center; gap:10px;
  padding: 15px 24px; border-radius: 999px; border:none;
  background: linear-gradient(135deg, var(--accent), #2bb873); color:#04150f;
  font-weight:700; font-size:.95rem; box-shadow: 0 8px 24px rgba(63,219,140,.4);
  animation: fabGlow 1.6s ease-in-out infinite;
}
@keyframes fabGlow{
  0%, 100% { box-shadow: 0 8px 24px rgba(63,219,140,.35); transform: scale(1); }
  50% { box-shadow: 0 8px 34px rgba(63,219,140,.75); transform: scale(1.045); }
}
@media (max-width: 720px){
  .buy-books-fab{ bottom:18px; right:18px; padding:13px 20px; font-size:.85rem; }
}

/* ---------------- Books page ---------------- */
.book-card{ display:flex; flex-direction:column; gap:12px; }
.book-photo{ width:100%; height:200px; object-fit:cover; border-radius: var(--radius-sm); background: rgba(255,255,255,.04); }
.book-photo-wrap{ position:relative; }
.stock-badge-top{
  position:absolute; top:12px; left:12px; z-index:2;
  padding:6px 14px; border-radius:999px; font-size:.68rem; font-weight:700;
  text-transform:uppercase; letter-spacing:.6px; backdrop-filter: blur(4px);
}
.stock-badge-top.in-stock{
  background: rgba(10,40,28,.75); color: var(--accent); border:1px solid rgba(63,219,140,.6);
  animation: stockGlowGreen 1.8s ease-in-out infinite;
}
.stock-badge-top.out-of-stock{
  background: rgba(40,10,10,.75); color:#ff9a9a; border:1px solid rgba(255,107,107,.6);
  animation: stockGlowRed 1.8s ease-in-out infinite;
}
@keyframes stockGlowGreen{ 0%,100%{ box-shadow:0 0 8px rgba(63,219,140,.35); } 50%{ box-shadow:0 0 18px rgba(63,219,140,.85); } }
@keyframes stockGlowRed{ 0%,100%{ box-shadow:0 0 8px rgba(255,107,107,.35); } 50%{ box-shadow:0 0 18px rgba(255,107,107,.85); } }

/* ---------------- Grade pill (shared: dashboard + performance page) ---------------- */
.grade-pill{ width:52px; height:52px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-family:var(--font-mono); font-weight:700; font-size:1.3rem; flex-shrink:0; }
.grade-A{ background: rgba(63,219,140,.18); color: var(--accent); }
.grade-B{ background: rgba(143,245,200,.15); color: var(--accent-2); }
.grade-C{ background: rgba(255,182,72,.15); color: var(--amber); }
.grade-S{ background: rgba(255,182,72,.1); color: var(--amber); }
.grade-F{ background: rgba(255,107,107,.15); color: var(--danger); }

/* ---------------- Coupon stat card (glowing + flashing) ---------------- */
.stat-hover-card{ transition: transform .25s ease, box-shadow .25s ease; }
.stat-hover-card:hover{ transform: translateY(-3px); box-shadow: 0 14px 34px rgba(0,0,0,.4); }

.past-papers-btn{
  position: fixed; bottom: 26px; right: 26px; z-index: 500;
  display:flex; align-items:center; gap:10px;
  padding: 15px 24px; border-radius: 999px; border:none;
  background: linear-gradient(135deg, var(--accent), #2bb873); color:#04150f;
  font-weight:700; font-size:.95rem; box-shadow: 0 8px 24px rgba(63,219,140,.4);
  animation: pastPapersGlow 1.6s ease-in-out infinite;
}
@keyframes pastPapersGlow{
  0%, 100% { box-shadow: 0 8px 24px rgba(63,219,140,.35); transform: scale(1); }
  50% { box-shadow: 0 8px 34px rgba(63,219,140,.75); transform: scale(1.045); }
}
@media (max-width: 720px){
  .past-papers-btn{ bottom:18px; right:18px; padding:13px 20px; font-size:.85rem; }
}

.coupon-card{
  text-align:center; border-color: rgba(255,196,64,.4);
  animation: goldGlow 1.6s ease-in-out infinite;
  transition: transform .25s ease;
}
.coupon-card:hover{ transform: translateY(-3px); }
.coupon-gif{ width:56px; height:56px; margin:0 auto 10px; object-fit:contain; }
.coupon-emoji-fallback{ font-size:2.4rem; margin-bottom:6px; display:inline-block; animation: couponBounce 1.4s ease-in-out infinite; }
.coupon-value{
  font-family: var(--font-mono); font-size:2.1rem; font-weight:700; color: var(--amber);
  animation: couponFlash 1.8s ease-in-out infinite;
}
@keyframes couponFlash{
  0%, 100% { opacity:1; text-shadow: 0 0 8px rgba(255,196,64,.5); }
  50% { opacity:.75; text-shadow: 0 0 22px rgba(255,196,64,1); }
}
@keyframes couponBounce{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-4px); } }

/* ---------------- Gold medal glow (top-5 popup) ---------------- */
@keyframes goldGlow{
  0%, 100% { box-shadow: 0 0 20px rgba(255,196,64,.4); }
  50% { box-shadow: 0 0 40px rgba(255,196,64,.85); }
}
.medal-icon{ animation: goldGlow 1.6s ease-in-out infinite; }

/* ---------------- Papers resource system ---------------- */
.paper-type-card{ display:flex; flex-direction:column; align-items:center; text-align:center; gap:10px; padding:32px 24px; cursor:pointer; transition: transform .15s ease; }
.paper-type-card:hover{ transform: translateY(-4px); }
.paper-type-icon{ font-size:2.2rem; }
.paper-card{ display:flex; flex-direction:column; gap:0; padding:0; overflow:hidden; }
.paper-banner{ width:100%; aspect-ratio:16/9; object-fit:contain; background:#000; display:block; }
.paper-banner-noVideo{
  width:100%; min-height:110px; padding:16px;
  background: linear-gradient(135deg, rgba(63,219,140,.14), rgba(10,31,26,.4));
  display:flex; flex-direction:column; gap:8px;
}
.paper-card-body{ padding:22px; display:flex; flex-direction:column; gap:8px; }
.paper-downloads{ display:flex; flex-direction:column; gap:8px; }
.paper-download-chip{
  display:flex; align-items:center; gap:8px; width:100%;
  padding:10px 14px; border-radius:8px; font-size:.85rem; font-weight:600;
  background: rgba(63,219,140,.1); border:1px solid rgba(63,219,140,.3); color: var(--accent);
}
.paper-download-chip:hover{ background: rgba(63,219,140,.2); }

/* ---------------- Live session badge (blue, pulsing) ---------------- */
.live-badge-top{
  display:inline-flex; align-items:center; gap:6px;
  padding:5px 12px; border-radius:999px; font-size:.7rem; font-weight:700;
  text-transform:uppercase; letter-spacing:.6px; margin-bottom:10px;
  background: rgba(59,130,246,.15); color:#60a5fa; border:1px solid rgba(59,130,246,.5);
  animation: liveGlow 1.4s ease-in-out infinite;
}
.live-badge-top .live-dot{ width:8px; height:8px; border-radius:50%; background:#3b82f6; animation: liveDotPulse 1.4s ease-in-out infinite; }
@keyframes liveGlow{ 0%,100%{ box-shadow:0 0 6px rgba(59,130,246,.4); } 50%{ box-shadow:0 0 16px rgba(59,130,246,.9); } }
@keyframes liveDotPulse{ 0%,100%{ opacity:1; transform:scale(1); } 50%{ opacity:.4; transform:scale(1.3); } }

/* ---------------- Join Live button (blue, pulsing like a live indicator) ---------------- */
.join-live-btn{
  display:inline-flex; align-items:center; gap:8px;
  background: linear-gradient(135deg, #3b82f6, #2563eb); color:#fff;
  border:none; animation: joinLiveGlow 1.3s ease-in-out infinite;
}
.join-live-btn .live-dot-icon{ width:8px; height:8px; border-radius:50%; background:#fff; animation: liveDotPulse 1.3s ease-in-out infinite; }
@keyframes joinLiveGlow{
  0%, 100% { box-shadow: 0 0 10px rgba(59,130,246,.5); }
  50% { box-shadow: 0 0 22px rgba(59,130,246,.95); }
}

/* ---------------- Class Ended button (red, disabled) ---------------- */
.class-ended-btn{
  background: rgba(255,107,107,.15) !important; color: var(--danger) !important;
  border:1px solid rgba(255,107,107,.4) !important; cursor:not-allowed;
}

/* ---------------- Prominent modal close button (over media/video) ---------------- */
.modal-close-solid{
  position:absolute; top:14px; right:14px; z-index:5;
  width:36px; height:36px; border-radius:50%;
  background: rgba(0,0,0,.6); border:1px solid rgba(255,255,255,.2);
  color:#fff; font-size:1.3rem; line-height:1; display:flex; align-items:center; justify-content:center;
  transition: background .15s ease;
}
.modal-close-solid:hover{ background: rgba(255,107,107,.5); }

/* ---------------- Content card title/description separation ---------------- */
.content-title-block{ border-bottom:1px solid rgba(255,255,255,.06); padding-bottom:12px; margin-bottom:12px; }

/* ---------------- Notice card (dashboard widget) ---------------- */
.notice-icon-circle{
  width:42px; height:42px; border-radius:50%; flex-shrink:0;
  background: rgba(63,219,140,.12); border:1px solid rgba(63,219,140,.3);
  display:flex; align-items:center; justify-content:center; font-size:1.1rem;
}

/* ---------------- Exam Countdown ---------------- */
.countdown-card{ text-align:center; }
.countdown-card .cd-value{ font-family:var(--font-mono); font-size:2.1rem; font-weight:700; color:var(--accent); }
.countdown-card .cd-label{ font-size:.72rem; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-top:6px; }

/* ---------------- Content type badges ---------------- */
.type-badge{ display:inline-flex; align-items:center; justify-content:center; text-align:center; font-size:.68rem; font-weight:700; padding:4px 10px; border-radius:999px; text-transform:uppercase; letter-spacing:.4px; }
.type-badge-live{ background:rgba(96,165,250,.15); color:#60a5fa; }
.type-badge-video{ background:rgba(255,107,107,.15); color:var(--danger); }
.type-badge-pdf{ background:rgba(63,219,140,.15); color:var(--accent); }

/* ---------------- Course card year chip ---------------- */
.year-chip{ display:inline-block; padding:4px 12px; border-radius:8px; background:rgba(63,219,140,.12); border:1px solid rgba(63,219,140,.3); color:var(--accent); font-family:var(--font-mono); font-size:.72rem; font-weight:700; letter-spacing:.5px; margin-bottom:6px; }

/* ---------------- Utility ---------------- */
.flex{ display:flex; align-items:center; }
.flex-between{ display:flex; align-items:center; justify-content:space-between; }
.gap-8{ gap:8px; } .gap-12{ gap:12px; } .gap-16{ gap:16px; }
.mt-8{margin-top:8px;} .mt-16{margin-top:16px;} .mt-24{margin-top:24px;} .mt-32{margin-top:32px;}
.mb-8{margin-bottom:8px;} .mb-16{margin-bottom:16px;} .mb-24{margin-bottom:24px;}
.section{ padding: 70px 0; }
.section-sm{ padding: 40px 0; }
.text-center{ text-align:center; }
.hidden{ display:none !important; }

/* ---------------- Hero ---------------- */
.hero{ padding: 90px 0 60px; position:relative; }
.hero-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap:50px; align-items:center; }
.hero .eyebrow{ margin-bottom:14px; display:block; }
.hero p.lead{ color: var(--text-muted); font-size:1.05rem; margin: 18px 0 28px; max-width:520px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-visual{ position:relative; }

/* ---------------- Auth pages ---------------- */
.auth-wrap{ min-height:80vh; display:flex; align-items:center; justify-content:center; padding: 50px 16px; }
.auth-card{ width:100%; max-width:460px; }
.auth-card.wide{ max-width:720px; }
.auth-switch{ text-align:center; margin-top:18px; font-size:.9rem; color: var(--text-muted); }
.auth-switch a{ color: var(--accent); font-weight:600; }

/* ---------------- Dashboard ---------------- */
.stat-card{ display:flex; flex-direction:column; gap:6px; }
.stat-card .stat-value{ font-family: var(--font-mono); font-size:2rem; font-weight:700; color: var(--accent); }
.stat-card .stat-label{ font-size:.8rem; color: var(--text-muted); text-transform:uppercase; letter-spacing:.6px; }

.welcome-banner{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:20px; }
.welcome-banner .student-id{ font-family: var(--font-mono); font-size:1.6rem; color: var(--accent-2); letter-spacing:1px; }

/* ---------------- Course card ---------------- */
.course-card{ display:flex; flex-direction:column; gap:14px; }
.fee-row{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.fee-old{ text-decoration: line-through; text-decoration-color: var(--danger); text-decoration-thickness: 2px; color: var(--text-faint); font-size:.9rem; opacity:.8; }
.fee-new{ font-family: var(--font-mono); font-size:1.4rem; color: var(--accent); font-weight:700; }
.meta-row{ display:flex; gap:14px; flex-wrap:wrap; font-size:.78rem; color: var(--text-muted); }
.pill{ background: rgba(255,255,255,.06); padding:4px 10px; border-radius:999px; }

/* ---------------- Progress bar (expiry) ---------------- */
.progress-track{ height:6px; border-radius:999px; background: rgba(255,255,255,.08); overflow:hidden; }
.progress-fill{ height:100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius:999px; }

/* ---------------- Content list ---------------- */
.content-item{ display:flex; align-items:center; justify-content:space-between; gap:16px; padding:16px 18px; border-radius: var(--radius-sm); background: rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.06); margin-bottom:12px; flex-wrap:wrap; }
.content-item .type-tag{ font-family: var(--font-mono); font-size:.68rem; text-transform:uppercase; letter-spacing:1px; color: var(--accent); }

/* ---------------- Video / PDF popup watermark ---------------- */
.media-modal{ max-width: 90vw; width: 900px; padding:0; background:#000; }
.media-frame-wrap{ position:relative; width:100%; aspect-ratio:16/9; background:#000; }
.media-frame-wrap iframe, .media-frame-wrap embed{ width:100%; height:100%; border:none; }
.watermark{ position:absolute; pointer-events:none; color: rgba(255,255,255,.35); font-family: var(--font-mono);
  font-size:.85rem; padding:6px 10px; text-shadow: 0 1px 2px rgba(0,0,0,.6); }
.watermark.wm-1{ top:10px; left:10px; } .watermark.wm-2{ bottom:10px; right:10px; }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px){
  .hero-grid{ grid-template-columns:1fr; }
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr 1fr; }
  .form-row{ grid-template-columns:1fr; }
}
@media (max-width: 720px){
  .nav-toggle{ display:block; }
  .nav-links{
    position:fixed; top:68px; left:0; right:0; background: var(--bg-alt);
    flex-direction:column; align-items:stretch; padding:14px; gap:4px;
    border-bottom:1px solid var(--card-border);
    transform: translateY(-140%); transition: transform .22s ease; z-index: 99;
  }
  .nav-links.open{ transform: translateY(0); }
  .nav-links a{ text-align:center; }
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
  .welcome-banner{ flex-direction:column; align-items:flex-start; }
}