/* ============================================================
   CRM Nuggets LMS — Main Stylesheet
   ============================================================ */

:root {
  --bg:       #050A14;
  --bg2:      #080F1E;
  --surface:  #0D1629;
  --surface2: #111D35;
  --border:   rgba(255,255,255,0.07);
  --accent:   #00D4FF;
  --accent2:  #7B5CFF;
  --accent3:  #FF6B35;
  --gold:     #FFD166;
  --text:     #E8EDF5;
  --text2:    #8A9BC0;
  --text3:    #4A5C80;
  --success:  #00E599;
  --danger:   #FF4D6A;
  --warning:  #FFD166;
  --radius:   12px;
  --radius-lg:20px;
  --shadow:   0 8px 32px rgba(0,0,0,0.5);
  --glow:     0 0 40px rgba(0,212,255,0.15);
  --sidebar-w:260px;
  --topbar-h: 64px;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:'DM Sans',sans-serif; background:var(--bg); color:var(--text); min-height:100vh; overflow-x:hidden; line-height:1.5; }
h1,h2,h3,h4,h5,h6 { font-family:'Syne',sans-serif; line-height:1.2; }
a { text-decoration:none; }
img { max-width:100%; }
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg); }
::-webkit-scrollbar-thumb { background:var(--surface2); border-radius:3px; }

/* ── UTILITIES ── */
.hidden { display:none !important; }
.active { display:block !important; }
.page { display:none; }
.page.active { display:block; }
.view { display:none; }
.view.active { display:block; }
.text-center { text-align:center; }
.text-muted { color:var(--text2); }
.small { font-size:13px; }
.gradient-text { background:linear-gradient(135deg,var(--accent),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.gradient-text-purple { background:linear-gradient(135deg,var(--accent2),var(--accent)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.gradient-text-gold { background:linear-gradient(135deg,var(--gold),var(--accent3)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.gradient-text-green { background:linear-gradient(135deg,var(--success),var(--accent)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.white-text { -webkit-text-fill-color:var(--text); color:var(--text); background:none; }
.mt-4 { margin-top:4px; } .mt-8 { margin-top:8px; } .mt-12 { margin-top:12px; } .mt-16 { margin-top:16px; } .mt-20 { margin-top:20px; } .mt-24 { margin-top:24px; } .mt-40 { margin-top:40px; }
.mb-4 { margin-bottom:4px; } .mb-8 { margin-bottom:8px; } .mb-12 { margin-bottom:12px; } .mb-16 { margin-bottom:16px; } .mb-20 { margin-bottom:20px; } .mb-24 { margin-bottom:24px; }
.flex { display:flex; align-items:center; }
.flex-between { display:flex; align-items:center; justify-content:space-between; }
.flex-end { display:flex; align-items:center; justify-content:flex-end; }
.flex-center { display:flex; align-items:center; justify-content:center; }
.flex-wrap { flex-wrap:wrap; }
.gap-8 { gap:8px; } .gap-12 { gap:12px; } .gap-16 { gap:16px; } .gap-24 { gap:24px; }
.grid-2 { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.full-width { width:100%; justify-content:center; }

/* ── BUTTONS ── */
.btn { display:inline-flex; align-items:center; gap:8px; padding:12px 24px; border-radius:8px; border:none; cursor:pointer; font-family:'DM Sans',sans-serif; font-weight:600; font-size:14px; transition:all .2s; text-decoration:none; }
.btn-primary { background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(0,212,255,0.3); }
.btn-secondary { background:var(--surface2); color:var(--text); border:1px solid var(--border); }
.btn-secondary:hover { border-color:var(--accent); color:var(--accent); }
.btn-danger { background:var(--danger); color:#fff; }
.btn-success { background:var(--success); color:#000; font-weight:700; }
.btn-success:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(0,229,153,0.3); }
.btn-gold { background:linear-gradient(135deg,var(--gold),var(--accent3)); color:#000; font-weight:700; }
.btn-lg { padding:16px 36px; font-size:16px; border-radius:12px; }
.btn-sm { padding:8px 16px; font-size:12px; border-radius:6px; }

/* ── FORM ELEMENTS ── */
.input,.select,.textarea { width:100%; padding:12px 16px; background:var(--surface2); border:1px solid var(--border); border-radius:8px; color:var(--text); font-family:'DM Sans',sans-serif; font-size:14px; outline:none; transition:border-color .2s; }
.input:focus,.select:focus,.textarea:focus { border-color:var(--accent); }
.input::placeholder,.textarea::placeholder { color:var(--text3); }
.input[readonly] { cursor:default; }
.textarea { resize:vertical; min-height:100px; }
.select { cursor:pointer; }
.label { display:block; font-size:11px; font-weight:700; color:var(--text3); margin-bottom:6px; letter-spacing:.5px; text-transform:uppercase; }
.form-group { margin-bottom:18px; }

/* ── TAGS & BADGES ── */
.tag { display:inline-block; padding:4px 12px; border-radius:100px; font-size:11px; font-weight:700; letter-spacing:.5px; text-transform:uppercase; }
.tag-accent { background:rgba(0,212,255,0.1); color:var(--accent); border:1px solid rgba(0,212,255,0.2); }
.tag-gold { background:rgba(255,209,102,0.1); color:var(--gold); border:1px solid rgba(255,209,102,0.2); }
.tag-purple { background:rgba(123,92,255,0.1); color:var(--accent2); border:1px solid rgba(123,92,255,0.2); }
.tag-green { background:rgba(0,229,153,0.1); color:var(--success); border:1px solid rgba(0,229,153,0.2); }
.tag-red { background:rgba(255,77,106,0.1); color:var(--danger); border:1px solid rgba(255,77,106,0.2); }
.badge { display:inline-flex; align-items:center; justify-content:center; min-width:18px; height:18px; padding:0 5px; border-radius:9px; font-size:10px; font-weight:700; background:var(--danger); color:#fff; }

/* ── ALERTS ── */
.alert { padding:14px 18px; border-radius:10px; font-size:13px; margin-bottom:16px; }
.alert-success { background:rgba(0,229,153,0.1); border:1px solid rgba(0,229,153,0.2); color:var(--success); }
.alert-error { background:rgba(255,77,106,0.1); border:1px solid rgba(255,77,106,0.2); color:var(--danger); }
.alert-info { background:rgba(0,212,255,0.1); border:1px solid rgba(0,212,255,0.2); color:var(--accent); }
.alert-warning { background:rgba(255,209,102,0.1); border:1px solid rgba(255,209,102,0.2); color:var(--gold); }

/* ── CARD ── */
.card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:24px; }

/* ── PROGRESS ── */
.progress-bar { height:6px; background:var(--surface2); border-radius:3px; overflow:hidden; }
.progress-fill { height:100%; background:linear-gradient(90deg,var(--accent),var(--accent2)); border-radius:3px; transition:width .6s ease; }

/* ── AVATAR ── */
.avatar { width:40px; height:40px; border-radius:50%; background:linear-gradient(135deg,var(--accent),var(--accent2)); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:16px; color:#fff; flex-shrink:0; }
.avatar.sm { width:36px; height:36px; font-size:14px; }
.avatar.lg { width:72px; height:72px; font-size:28px; }

/* ── DIVIDER ── */
.divider { height:1px; background:var(--border); margin:20px 0; }
.divider-or { display:flex; align-items:center; gap:12px; margin:20px 0; color:var(--text3); font-size:13px; }
.divider-or::before,.divider-or::after { content:''; flex:1; height:1px; background:var(--border); }

/* ── LOADING SKELETON ── */
.loading-skeleton { background:linear-gradient(90deg,var(--surface) 25%,var(--surface2) 50%,var(--surface) 75%); background-size:200% 100%; animation:shimmer 1.5s infinite; border-radius:var(--radius-lg); height:280px; }
@keyframes shimmer { 0%{background-position:200% 0;} 100%{background-position:-200% 0;} }

/* ══════════════════════════════════════════
   LANDING PAGE
══════════════════════════════════════════ */
#nav { position:fixed; top:0; left:0; right:0; z-index:100; padding:16px 40px; display:flex; align-items:center; justify-content:space-between; background:rgba(5,10,20,0.9); backdrop-filter:blur(20px); border-bottom:1px solid var(--border); }
.nav-logo { font-family:'Syne',sans-serif; font-size:22px; font-weight:800; background:linear-gradient(135deg,var(--accent),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.nav-links { display:flex; align-items:center; gap:32px; }
.nav-links a { color:var(--text2); font-size:14px; font-weight:500; transition:color .2s; }
.nav-links a:hover { color:var(--accent); }
.nav-cta { display:flex; gap:12px; }
#hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:6px; }
#hamburger span { width:22px; height:2px; background:var(--text); border-radius:2px; transition:.3s; }
.mobile-nav { position:fixed; top:64px; left:0; right:0; background:var(--bg2); border-bottom:1px solid var(--border); padding:20px; z-index:99; }
.mobile-nav-item { display:flex; align-items:center; gap:12px; padding:12px 0; color:var(--text2); font-size:14px; border-bottom:1px solid var(--border); }
.mobile-nav-btns { display:flex; gap:12px; margin-top:16px; }
.mobile-nav-btns .btn { flex:1; }

#hero { min-height:100vh; display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden; padding:120px 40px 80px; }
.hero-bg { position:absolute; inset:0; background:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(0,212,255,0.12),transparent 70%),radial-gradient(ellipse 50% 60% at 90% 50%,rgba(123,92,255,0.08),transparent 60%); }
.hero-grid { position:absolute; inset:0; background-image:linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.02) 1px,transparent 1px); background-size:60px 60px; mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black 0%,transparent 80%); }
.hero-content { position:relative; text-align:center; max-width:820px; margin:0 auto; }
.hero-badge { display:inline-flex; align-items:center; gap:8px; padding:8px 20px; background:rgba(0,212,255,0.08); border:1px solid rgba(0,212,255,0.2); border-radius:100px; font-size:13px; color:var(--accent); margin-bottom:32px; animation:fadeUp .8s ease both; }
@keyframes fadeUp { from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:translateY(0);} }
.hero-content h1 { font-size:clamp(40px,7vw,80px); font-weight:800; line-height:1.05; margin-bottom:24px; animation:fadeUp .8s ease .1s both; }
.hero-content > p { font-size:18px; color:var(--text2); max-width:560px; margin:0 auto 40px; line-height:1.7; animation:fadeUp .8s ease .2s both; }
.hero-cta { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; animation:fadeUp .8s ease .3s both; }
.hero-stats { display:flex; gap:48px; justify-content:center; margin-top:60px; animation:fadeUp .8s ease .4s both; flex-wrap:wrap; }
.hero-stat { text-align:center; }
.hero-stat-num { font-family:'Syne',sans-serif; font-size:32px; font-weight:800; background:linear-gradient(135deg,var(--accent),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.hero-stat-label { font-size:13px; color:var(--text3); margin-top:4px; }
.floating-card { position:absolute; background:var(--surface); border:1px solid var(--border); border-radius:12px; padding:14px 18px; font-size:13px; backdrop-filter:blur(10px); animation:float 4s ease-in-out infinite; }
.fc1 { left:5%; top:25%; animation-delay:0s; }
.fc2 { right:5%; top:35%; animation-delay:-2s; }
.fc3 { left:8%; bottom:25%; animation-delay:-1s; }
@keyframes float { 0%,100%{transform:translateY(0);} 50%{transform:translateY(-12px);} }

.section { padding:80px 40px; }
.alt-bg { background:var(--bg2); }
.section-header { text-align:center; max-width:620px; margin:0 auto 60px; }
.section-header h2 { font-size:clamp(28px,4vw,48px); font-weight:800; }
.section-header p { color:var(--text2); font-size:16px; line-height:1.7; margin-top:12px; }

/* COURSES GRID */
.courses-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; max-width:1200px; margin:0 auto; }
.course-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; transition:all .3s; cursor:pointer; }
.course-card:hover { transform:translateY(-4px); border-color:rgba(0,212,255,0.2); box-shadow:var(--glow); }
.course-thumb { height:160px; display:flex; align-items:center; justify-content:center; font-size:56px; position:relative; }
.course-thumb::after { content:''; position:absolute; inset:0; background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,0.4)); }
.course-body { padding:20px; }
.course-title { font-family:'Syne',sans-serif; font-size:16px; font-weight:700; margin:10px 0 8px; }
.course-desc { font-size:13px; color:var(--text2); line-height:1.6; margin-bottom:14px; }
.course-meta { display:flex; align-items:center; justify-content:space-between; font-size:12px; color:var(--text3); }
.course-rating { color:var(--gold); }
.ct-blue { background:linear-gradient(135deg,#0d3b6e,#1a5276); }
.ct-purple { background:linear-gradient(135deg,#2d1b69,#4a148c); }
.ct-green { background:linear-gradient(135deg,#0d4d2e,#145a32); }
.ct-red { background:linear-gradient(135deg,#6d1a1a,#922b21); }
.ct-orange { background:linear-gradient(135deg,#7d3c12,#9c3b06); }
.ct-dark { background:linear-gradient(135deg,#1a1a2e,#16213e); }

/* FEATURES */
.features-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:24px; max-width:1200px; margin:0 auto; }
.feature-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:28px; transition:all .3s; }
.feature-card:hover { border-color:rgba(123,92,255,0.2); transform:translateY(-4px); }
.feature-icon { width:52px; height:52px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:24px; margin-bottom:16px; }
.feature-icon.blue { background:rgba(0,212,255,0.1); }
.feature-icon.purple { background:rgba(123,92,255,0.1); }
.feature-icon.gold { background:rgba(255,209,102,0.1); }
.feature-icon.green { background:rgba(0,229,153,0.1); }
.feature-icon.red { background:rgba(255,107,53,0.1); }
.feature-card h4 { font-family:'Syne',sans-serif; font-size:16px; font-weight:700; margin-bottom:8px; }
.feature-card p { font-size:13px; color:var(--text2); line-height:1.6; }

/* PRICING */
.pricing-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; max-width:800px; margin:0 auto; }
.pricing-card { background:var(--surface); border:2px solid var(--border); border-radius:var(--radius-lg); padding:36px; position:relative; transition:all .3s; }
.pricing-card.featured { border-color:var(--accent); background:linear-gradient(135deg,rgba(0,212,255,0.04),rgba(123,92,255,0.04)); }
.popular-badge { position:absolute; top:-14px; left:50%; transform:translateX(-50%); background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#fff; padding:6px 20px; border-radius:100px; font-size:12px; font-weight:700; white-space:nowrap; }
.price { font-family:'Syne',sans-serif; font-size:48px; font-weight:800; margin:16px 0 4px; }
.price sub { font-size:20px; vertical-align:super; }
.price span { font-size:18px; color:var(--text2); }
.pricing-features { list-style:none; text-align:left; margin:24px 0; display:flex; flex-direction:column; gap:12px; }
.pricing-features li { font-size:14px; color:var(--text2); display:flex; gap:10px; align-items:flex-start; }
.pricing-features li::before { content:'✓'; color:var(--success); font-weight:700; flex-shrink:0; }

/* TESTIMONIALS */
.testimonials-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; max-width:1100px; margin:0 auto; }
.testimonial-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:28px; }
.testimonial-card p { font-size:14px; color:var(--text2); line-height:1.7; font-style:italic; margin-bottom:20px; }
.testimonial-author { display:flex; align-items:center; gap:12px; }
.testimonial-author strong { display:block; font-size:14px; }
.testimonial-author span { font-size:12px; color:var(--text3); }

/* FOOTER */
footer { background:var(--bg2); border-top:1px solid var(--border); padding:60px 40px 30px; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; max-width:1200px; margin:0 auto; }
.footer-brand p { font-size:14px; color:var(--text2); margin-top:12px; line-height:1.7; }
.footer-col h4 { font-family:'Syne',sans-serif; font-size:14px; font-weight:700; margin-bottom:16px; }
.footer-col a { display:block; color:var(--text3); font-size:13px; margin-bottom:10px; transition:color .2s; }
.footer-col a:hover { color:var(--accent); }
.social-links { display:flex; gap:10px; margin-top:16px; }
.social-btn { width:36px; height:36px; border-radius:8px; background:var(--surface2); display:flex; align-items:center; justify-content:center; font-size:14px; color:var(--text2); transition:.2s; }
.social-btn:hover { background:rgba(0,212,255,0.1); color:var(--accent); }
.footer-bottom { max-width:1200px; margin:40px auto 0; padding-top:24px; border-top:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; font-size:13px; color:var(--text3); }

/* ══════════════════════════════════════════
   AUTH MODAL
══════════════════════════════════════════ */
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,0.75); backdrop-filter:blur(8px); z-index:200; display:flex; align-items:center; justify-content:center; padding:20px; }
.modal { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:40px; width:100%; max-width:480px; position:relative; max-height:90vh; overflow-y:auto; }
.modal-close { position:absolute; top:16px; right:16px; width:32px; height:32px; border-radius:50%; background:var(--surface2); border:none; color:var(--text); cursor:pointer; font-size:16px; display:flex; align-items:center; justify-content:center; transition:.2s; }
.modal-close:hover { background:var(--danger); }
.modal-title { font-size:24px; font-weight:800; margin-bottom:8px; }
.auth-tabs { display:flex; background:var(--surface2); border-radius:10px; padding:4px; margin-bottom:24px; }
.auth-tab { flex:1; padding:10px; text-align:center; border-radius:7px; cursor:pointer; font-size:14px; font-weight:600; color:var(--text2); transition:.2s; }
.auth-tab.active { background:var(--surface); color:var(--text); box-shadow:0 2px 8px rgba(0,0,0,0.3); }
.remember-me { display:flex; align-items:center; gap:8px; font-size:13px; color:var(--text2); cursor:pointer; }
.terms-label { display:flex; gap:8px; font-size:13px; color:var(--text2); cursor:pointer; align-items:flex-start; }
.terms-label input { margin-top:2px; }
.link { color:var(--accent); font-weight:600; }
.link:hover { text-decoration:underline; }

/* ══════════════════════════════════════════
   PAYMENT PAGE
══════════════════════════════════════════ */
#payment-page { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px; }
#payment-page::before { content:''; position:fixed; inset:0; background:radial-gradient(ellipse 60% 50% at 50% 0%,rgba(123,92,255,0.1),transparent 70%); pointer-events:none; }
.payment-wrap { position:relative; z-index:1; width:100%; max-width:520px; }
.payment-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:48px; text-align:center; }
.payment-icon { width:72px; height:72px; border-radius:20px; background:linear-gradient(135deg,var(--accent2),var(--accent)); display:flex; align-items:center; justify-content:center; font-size:32px; margin:0 auto 24px; }
.payment-card h2 { font-size:28px; font-weight:800; margin-bottom:8px; }
.payment-plan { background:var(--surface2); border:1px solid var(--border); border-radius:12px; padding:20px; margin:20px 0; text-align:left; }
.plan-label { font-size:11px; font-weight:700; color:var(--text3); text-transform:uppercase; letter-spacing:.5px; margin-bottom:4px; }
.plan-price { font-family:'Syne',sans-serif; font-size:40px; font-weight:800; background:linear-gradient(135deg,var(--accent),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.plan-period { font-size:13px; color:var(--text2); }
.plan-features { display:flex; flex-direction:column; gap:10px; margin-top:12px; }
.plan-feature { display:flex; gap:10px; align-items:center; font-size:14px; color:var(--text2); }
.paystack-badge { background:rgba(0,229,153,0.05); border:1px solid rgba(0,229,153,0.15); border-radius:10px; padding:14px 16px; font-size:13px; color:var(--text2); display:flex; gap:10px; align-items:flex-start; margin:16px 0; text-align:left; }

/* ══════════════════════════════════════════
   APP SHELL
══════════════════════════════════════════ */
#app { display:flex; min-height:100vh; }
#sidebar-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:49; }
#sidebar { width:var(--sidebar-w); background:var(--bg2); border-right:1px solid var(--border); position:fixed; top:0; left:0; bottom:0; z-index:50; display:flex; flex-direction:column; transition:transform .3s; }
.sidebar-logo { padding:22px 20px; border-bottom:1px solid var(--border); }
.logo-text { font-family:'Syne',sans-serif; font-size:18px; font-weight:800; background:linear-gradient(135deg,var(--accent),var(--accent2)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.logo-sub { font-size:11px; color:var(--text3); margin-top:2px; }
.sidebar-nav { flex:1; padding:12px 0; overflow-y:auto; }
.nav-section-label { padding:8px 20px; font-size:10px; font-weight:700; color:var(--text3); letter-spacing:1px; text-transform:uppercase; margin-top:8px; }
.nav-item { display:flex; align-items:center; gap:12px; padding:11px 20px; color:var(--text2); cursor:pointer; transition:all .2s; font-size:14px; font-weight:500; border-left:3px solid transparent; }
.nav-item:hover { color:var(--text); background:rgba(255,255,255,0.03); }
.nav-item.active { color:var(--accent); background:rgba(0,212,255,0.06); border-left-color:var(--accent); }
.sidebar-user { padding:18px 20px; border-top:1px solid var(--border); }
.sidebar-user-row { display:flex; align-items:center; gap:10px; }
.sidebar-uname { font-size:14px; font-weight:600; }
.sidebar-urole { font-size:11px; color:var(--text3); }
#topbar { position:fixed; top:0; left:var(--sidebar-w); right:0; height:var(--topbar-h); background:var(--bg2); border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; padding:0 28px; z-index:40; }
.topbar-left { display:flex; align-items:center; gap:14px; }
.topbar-title { font-family:'Syne',sans-serif; font-size:17px; font-weight:700; }
.topbar-right { display:flex; align-items:center; gap:16px; }
#sidebar-toggle { display:none; background:none; border:none; color:var(--text); font-size:22px; cursor:pointer; }
.notif-btn { position:relative; cursor:pointer; font-size:22px; }
.notif-btn .badge { position:absolute; top:-4px; right:-4px; }
#main-content { margin-left:var(--sidebar-w); margin-top:var(--topbar-h); padding:28px; min-height:calc(100vh - var(--topbar-h)); }

/* ── DASHBOARD ── */
.welcome-banner { background:linear-gradient(135deg,rgba(0,212,255,0.08),rgba(123,92,255,0.08)); border:1px solid rgba(0,212,255,0.15); border-radius:var(--radius-lg); padding:28px 32px; margin-bottom:24px; display:flex; align-items:center; justify-content:space-between; }
.welcome-banner h2 { font-size:22px; margin-bottom:4px; }
.welcome-banner p { color:var(--text2); font-size:14px; }
.welcome-emoji { font-size:48px; }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.stat-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:22px; }
.stat-icon { font-size:24px; margin-bottom:10px; }
.stat-label { font-size:11px; color:var(--text3); font-weight:700; text-transform:uppercase; letter-spacing:.5px; margin-bottom:4px; }
.stat-value { font-family:'Syne',sans-serif; font-size:26px; font-weight:800; }
.stat-change { font-size:12px; color:var(--success); margin-top:4px; }
.section-row-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.section-row-header h3 { font-size:17px; }
.continue-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:16px; margin-bottom:14px; cursor:pointer; transition:all .2s; }
.continue-card:hover { border-color:rgba(0,212,255,0.2); }
.continue-card-header { display:flex; gap:14px; margin-bottom:12px; }
.continue-thumb { width:48px; height:48px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:22px; flex-shrink:0; }

/* ── COURSES FILTERS ── */
.courses-filters { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:24px; }
.filter-pill { padding:8px 18px; border-radius:100px; border:1px solid var(--border); background:var(--surface); color:var(--text2); cursor:pointer; font-size:13px; font-weight:500; transition:.2s; }
.filter-pill:hover,.filter-pill.active { background:rgba(0,212,255,0.08); border-color:rgba(0,212,255,0.3); color:var(--accent); }
.search-bar { display:flex; align-items:center; gap:10px; background:var(--surface); border:1px solid var(--border); border-radius:10px; padding:8px 14px; }
.search-bar input { background:none; border:none; outline:none; color:var(--text); font-size:14px; flex:1; font-family:'DM Sans',sans-serif; }
.search-bar input::placeholder { color:var(--text3); }

/* ── LESSON PAGE ── */
.lesson-layout { display:grid; grid-template-columns:1fr 320px; gap:24px; }
.video-player { background:#000; border-radius:var(--radius-lg); aspect-ratio:16/9; display:flex; align-items:center; justify-content:center; overflow:hidden; position:relative; }
.video-placeholder { text-align:center; color:var(--text2); }
.video-actions { display:flex; gap:12px; flex-wrap:wrap; }
.lesson-sidebar { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; max-height:600px; overflow-y:auto; }
.lesson-sidebar-header { padding:16px 20px; border-bottom:1px solid var(--border); font-family:'Syne',sans-serif; font-weight:700; font-size:14px; position:sticky; top:0; background:var(--surface); z-index:1; }
.lesson-item { display:flex; align-items:center; gap:12px; padding:12px 18px; border-bottom:1px solid rgba(255,255,255,0.04); cursor:pointer; transition:.2s; font-size:13px; }
.lesson-item:hover { background:var(--surface2); }
.lesson-item.active { background:rgba(0,212,255,0.06); color:var(--accent); }
.lesson-num { width:28px; height:28px; border-radius:50%; background:var(--surface2); display:flex; align-items:center; justify-content:center; font-size:11px; font-weight:700; flex-shrink:0; }
.lesson-item.done .lesson-num { background:var(--success); color:#000; }
.lesson-item-title { flex:1; line-height:1.3; }
.lesson-duration { color:var(--text3); font-size:11px; flex-shrink:0; }

/* ── CERTIFICATES ── */
.cert-card { background:linear-gradient(135deg,#0a1628,#0d1e3c); border:2px solid rgba(255,209,102,0.3); border-radius:var(--radius-lg); padding:48px; text-align:center; position:relative; overflow:hidden; }
.cert-card::before { content:''; position:absolute; inset:12px; border:1px solid rgba(255,209,102,0.1); border-radius:12px; pointer-events:none; }
.cert-seal { width:80px; height:80px; border-radius:50%; background:linear-gradient(135deg,var(--gold),var(--accent3)); display:flex; align-items:center; justify-content:center; font-size:36px; margin:0 auto 24px; box-shadow:0 0 40px rgba(255,209,102,0.3); }
.cert-label { font-size:12px; letter-spacing:3px; color:var(--gold); text-transform:uppercase; margin-bottom:8px; }
.cert-name { font-family:'Syne',sans-serif; font-size:32px; font-weight:800; }
.cert-course { font-size:18px; color:var(--text2); margin-top:4px; }
.cert-divider { width:80px; height:2px; background:linear-gradient(90deg,transparent,var(--gold),transparent); margin:20px auto; }
.no-certs { text-align:center; padding:60px 20px; color:var(--text2); }
.no-certs .icon { font-size:64px; margin-bottom:16px; }

/* ── ADMIN ── */
.table-wrapper { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; }
.table-header { padding:18px 22px; display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid var(--border); }
.table-title { font-family:'Syne',sans-serif; font-size:15px; font-weight:700; }
.data-table { width:100%; border-collapse:collapse; }
.data-table th { text-align:left; padding:12px 16px; font-size:11px; font-weight:700; color:var(--text3); text-transform:uppercase; letter-spacing:.5px; border-bottom:1px solid var(--border); }
.data-table td { padding:14px 16px; font-size:13px; border-bottom:1px solid rgba(255,255,255,0.04); vertical-align:middle; }
.data-table tr:last-child td { border-bottom:none; }
.data-table tr:hover td { background:rgba(255,255,255,0.02); }

/* ANALYTICS */
.chart-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg); padding:24px; }
.chart-title { font-family:'Syne',sans-serif; font-size:16px; font-weight:700; margin-bottom:24px; }
.bar-chart { display:flex; align-items:flex-end; gap:10px; height:160px; }
.bar-wrap { flex:1; display:flex; flex-direction:column; align-items:center; gap:6px; }
.bar { width:100%; border-radius:6px 6px 0 0; background:linear-gradient(180deg,var(--accent),var(--accent2)); transition:height .6s ease; }
.bar-label { font-size:10px; color:var(--text3); }
.bar-val { font-size:10px; color:var(--text2); font-weight:600; }

/* PROFILE */
.profile-header { background:linear-gradient(135deg,rgba(0,212,255,0.07),rgba(123,92,255,0.07)); border:1px solid var(--border); border-radius:var(--radius-lg); padding:32px; display:flex; align-items:center; gap:24px; }
.profile-avatar { width:80px; height:80px; border-radius:50%; background:linear-gradient(135deg,var(--accent),var(--accent2)); display:flex; align-items:center; justify-content:center; font-size:30px; font-weight:800; color:#fff; flex-shrink:0; }
.profile-header h2 { font-size:22px; }

/* PREFERENCES */
.pref-list { display:flex; flex-direction:column; gap:16px; }
.pref-item { display:flex; gap:12px; align-items:flex-start; cursor:pointer; }
.pref-item input { margin-top:3px; accent-color:var(--accent); }
.pref-item strong { display:block; font-size:14px; margin-bottom:2px; }
.pref-item span { font-size:12px; color:var(--text2); }

/* NOTIFICATIONS */
.notif-item { display:flex; gap:16px; padding:16px 0; border-bottom:1px solid var(--border); align-items:flex-start; }
.notif-item:last-child { border-bottom:none; }
.notif-icon { font-size:22px; flex-shrink:0; }
.notif-title { font-size:14px; font-weight:600; margin-bottom:4px; }
.notif-msg { font-size:13px; color:var(--text2); }
.notif-time { font-size:11px; color:var(--text3); margin-top:4px; }
.notif-item.unread { background:rgba(0,212,255,0.03); border-radius:8px; padding:12px; }

/* STAR RATING */
.star-rating { display:flex; gap:8px; justify-content:center; font-size:32px; }
.star-rating .star { cursor:pointer; transition:.2s; filter:grayscale(1); }
.star-rating .star.lit { filter:none; transform:scale(1.1); }

/* VIEW HEADER */
.view-header { display:flex; align-items:flex-start; justify-content:space-between; margin-bottom:24px; flex-wrap:wrap; gap:12px; }
.view-header h2 { font-size:24px; }

/* TOAST */
.toast { position:fixed; bottom:24px; right:24px; background:var(--surface2); border:1px solid var(--border); border-radius:12px; padding:14px 20px; display:flex; align-items:center; gap:10px; z-index:999; animation:slideIn .3s ease; max-width:360px; box-shadow:var(--shadow); font-size:14px; }
@keyframes slideIn { from{opacity:0;transform:translateX(20px);} to{opacity:1;transform:translateX(0);} }
.toast.success { border-color:rgba(0,229,153,0.3); }
.toast.error { border-color:rgba(255,77,106,0.3); }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width:1100px) {
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .lesson-layout { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  #nav { padding:12px 20px; }
  .nav-links,.nav-cta { display:none; }
  #hamburger { display:flex; }
  #hero { padding:100px 20px 60px; }
  .hero-stats { gap:20px; }
  .floating-card { display:none; }
  .section { padding:60px 20px; }
  #sidebar { transform:translateX(-100%); }
  #sidebar.open { transform:translateX(0); }
  #sidebar-overlay.visible { display:block; }
  #sidebar-toggle { display:flex; }
  #topbar { left:0; }
  #main-content { margin-left:0; padding:20px; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .grid-2,.grid-3,.grid-4 { grid-template-columns:1fr; }
  .welcome-emoji { display:none; }
  .footer-bottom { flex-direction:column; gap:8px; text-align:center; }
  .modal { padding:28px 20px; }
  .payment-card { padding:28px 20px; }
}
@media (max-width:480px) {
  .stats-grid { grid-template-columns:1fr; }
  .hero-stats { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
  .hero-cta { flex-direction:column; align-items:stretch; }
}

/* ═══════════════════════════════════════════
   COURSE MATERIALS — Admin & Student
═══════════════════════════════════════════ */

/* File drop zone */
.file-drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  background: var(--bg2);
  margin-bottom: 14px;
}
.file-drop-zone:hover,
.file-drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(59,130,246,.06);
}

/* Upload box inside modal */
.mat-upload-box {
  background: var(--bg2);
  border-radius: 12px;
  padding: 20px;
}

/* Admin material list item */
.mat-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.mat-item:last-child { border-bottom: none; }
.mat-icon  { font-size: 26px; flex-shrink: 0; }
.mat-info  { flex: 1; min-width: 0; }
.mat-name  { font-weight: 600; font-size: 14px; color: var(--text1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mat-meta  { font-size: 12px; color: var(--text3); margin-top: 3px; }
.mat-actions { display: flex; gap: 8px; flex-shrink: 0; }

/* Student material list item */
.student-mat-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.student-mat-item:last-child { border-bottom: none; }
.mat-icon-lg { font-size: 30px; flex-shrink: 0; }

/* Course materials panel */
#course-materials-panel { margin-top: 24px; }


/* ═══════════════════════════════════════════
   VIDEO PLAYER MODAL
═══════════════════════════════════════════ */
.video-player-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: #000;
  border-radius: 12px;
  overflow: hidden;
}
.video-player-wrap iframe,
.video-player-wrap video {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  border: none;
}
#video-player-modal .modal {
  overflow: visible;
}

/* ═══════════════════════════════════════════
   SOCIAL SHARE MODAL
═══════════════════════════════════════════ */
.share-btns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 4px;
}
.share-btn {
  border-radius: 10px !important;
  font-size: 13px !important;
  padding: 10px 8px !important;
  font-weight: 600 !important;
  transition: transform .15s, opacity .15s;
}
.share-btn:hover { transform: translateY(-2px); opacity: .92; }
.share-wa { background: #25D366 !important; color: #fff !important; border-color: #25D366 !important; }
.share-fb { background: #1877F2 !important; color: #fff !important; border-color: #1877F2 !important; }
.share-tw { background: #000 !important;    color: #fff !important; border-color: #333 !important; }
.share-li { background: #0A66C2 !important; color: #fff !important; border-color: #0A66C2 !important; }
.share-tg { background: #229ED9 !important; color: #fff !important; border-color: #229ED9 !important; }
/* make last button span full width when 5 items in 3-col grid */
.share-btns .share-btn:last-child:nth-child(3n+2) {
  grid-column: span 2;
}
.share-btns .share-btn:last-child:nth-child(3n+1) {
  grid-column: span 3;
}

/* ═══════════════════════════════════════════
   SHARE ICON BUTTON (on course cards)
═══════════════════════════════════════════ */
.share-icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 7px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text3);
  transition: background .15s, border-color .15s, color .15s;
  line-height: 1.5;
  flex-shrink: 0;
}
.share-icon-btn:hover {
  background: var(--bg2);
  border-color: var(--accent);
  color: var(--accent);
}

/* ═══════════════════════════════════════════
   SHARE COURSE BUTTON (lesson view header)
═══════════════════════════════════════════ */
.share-course-btn {
  margin-right: 8px;
}

/* ═══════════════════════════════════════════
   VIDEO LINK — student list item badge
═══════════════════════════════════════════ */
.video-link-badge {
  display: inline-block;
  background: rgba(99,102,241,.15);
  color: var(--accent2, #818cf8);
  border-radius: 6px;
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 6px;
  vertical-align: middle;
}

@media (max-width: 480px) {
  .share-btns { grid-template-columns: repeat(2, 1fr); }
  .share-btns .share-btn:last-child:nth-child(odd) { grid-column: span 2; }
}