/* ============================================================
   USMLE Corner LMS — Premium v3
   Pill sidebar · Bloomberg cards · Gold accents
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700&family=Inter:wght@300;400;500;600;700&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --navy:    #07101f;
  --navy2:   #0d1a2e;
  --navy3:   #152338;
  --gold:    #c9a84c;
  --gold2:   #e8c96a;
  --golddim: rgba(201,168,76,0.13);
  --goldbdr: rgba(201,168,76,0.28);
  --bg:      #f0f2f8;
  --white:   #ffffff;
  --bdr:     #e2e8f2;
  --t1:      #07101f;
  --t2:      #4a5568;
  --t3:      #94a3b8;
  --green:   #0f9b6e;
  --greenbg: #e6f7f2;
  --greentx: #0a7a56;
  --red:     #e53e3e;
  --redbg:   #fff0f0;
  --amberbg: #fef9e7;
  --ambertx: #92740a;
  --bluebg:  #eef4ff;
  --bluetx:  #2563eb;
  --r:       10px;
  --rl:      14px;
  --rxl:     18px;
  --sh:      0 1px 3px rgba(7,16,31,0.06),0 1px 2px rgba(7,16,31,0.04);
  --shm:     0 4px 16px rgba(7,16,31,0.08),0 1px 4px rgba(7,16,31,0.04);
  --shd:     0 8px 32px rgba(7,16,31,0.14),0 2px 8px rgba(7,16,31,0.06);
}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--t1);font-size:14px;line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}

/* ── Animations ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes growBar{from{width:0}to{width:var(--w,0%)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ══════════════════════════════
   LAYOUT
══════════════════════════════ */
.lms-layout{display:flex;min-height:100vh;}

/* ══════════════════════════════
   SIDEBAR — Pill style
══════════════════════════════ */
.sidebar{
  width:240px;min-width:240px;
  background:var(--navy);
  display:flex;flex-direction:column;
  position:fixed;top:0;left:0;bottom:0;
  z-index:100;overflow-y:auto;
}
.sidebar-logo{padding:22px 14px 16px;border-bottom:1px solid rgba(255,255,255,0.05);}
.logo-wrap{display:flex;align-items:center;gap:10px;}
.logo-icon{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--gold),var(--gold2));
  display:flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;
  box-shadow:0 3px 14px rgba(201,168,76,0.38);
}
.logo-text{font-family:'Playfair Display',serif;color:#fff;font-size:15px;font-weight:700;line-height:1.2;}
.logo-sub{color:rgba(255,255,255,0.25);font-size:9px;letter-spacing:.04em;margin-top:1px;}

.sidebar-section{padding:16px 10px 4px;}
.sidebar-label{font-size:8px;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:rgba(255,255,255,0.18);padding:0 10px;margin-bottom:5px;}

.nav-item{
  display:flex;align-items:center;gap:9px;
  padding:8px 10px;border-radius:10px;
  color:rgba(255,255,255,0.38);font-size:13px;font-weight:500;
  width:100%;border:none;background:none;text-align:left;
  margin-bottom:2px;transition:all .18s;cursor:pointer;
}
.nav-item:hover{background:rgba(255,255,255,0.06);color:rgba(255,255,255,0.72);}
.nav-item.active{background:rgba(255,255,255,0.11);color:#fff;font-weight:600;}
.nav-item.active .nav-ic{background:linear-gradient(135deg,var(--gold),var(--gold2));color:var(--navy);}

.nav-ic{
  width:28px;height:28px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;flex-shrink:0;
  background:rgba(255,255,255,0.06);
  transition:all .18s;
}
.nav-item:hover .nav-ic{background:rgba(255,255,255,0.1);}
.nav-badge{margin-left:auto;background:var(--gold);color:var(--navy);font-size:9px;padding:2px 7px;border-radius:20px;font-weight:700;}
.nav-soon{margin-left:auto;font-size:8px;color:rgba(255,255,255,0.15);background:rgba(255,255,255,0.05);padding:2px 8px;border-radius:20px;}
.sidebar-divider{height:1px;background:rgba(255,255,255,0.05);margin:8px 10px;}

.sidebar-footer{margin-top:auto;padding:12px 10px;border-top:1px solid rgba(255,255,255,0.05);}
.user-chip{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:10px;background:rgba(255,255,255,0.05);}
.user-avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold2));display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--navy);flex-shrink:0;}
.user-name{font-size:12px;font-weight:600;color:#e2e8f0;}
.user-plan{font-size:9px;color:rgba(255,255,255,0.28);margin-top:1px;}
.logout-btn{margin-left:auto;background:none;border:none;color:rgba(255,255,255,0.25);font-size:14px;cursor:pointer;transition:color .15s;line-height:1;}
.logout-btn:hover{color:rgba(255,255,255,0.7);}

/* ══════════════════════════════
   MAIN CONTENT
══════════════════════════════ */
.main-wrap{margin-left:240px;flex:1;display:flex;flex-direction:column;min-height:100vh;}
.topbar{
  background:var(--white);border-bottom:1px solid var(--bdr);
  padding:1rem 1.75rem;display:flex;align-items:center;
  justify-content:space-between;position:sticky;top:0;z-index:50;
  box-shadow:var(--sh);
}
.topbar-title{font-family:'Playfair Display',serif;font-size:20px;font-weight:700;color:var(--t1);}
.topbar-right{display:flex;align-items:center;gap:12px;}
.search-wrap{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--bdr);border-radius:var(--r);padding:7px 13px;transition:border-color .15s;}
.search-wrap:focus-within{border-color:var(--gold);}
.search-wrap input{border:none;background:none;outline:none;font-size:13px;color:var(--t1);width:190px;}
.search-wrap input::placeholder{color:var(--t3);}
.notif-btn{width:34px;height:34px;border-radius:var(--r);background:var(--bg);border:1px solid var(--bdr);display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;transition:border-color .15s;}
.notif-btn:hover{border-color:var(--goldbdr);}
.content{padding:1.75rem;flex:1;}

/* Welcome banner */
.welcome-banner{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,#0e1c32 100%);
  border-radius:var(--rxl);padding:22px 26px;margin-bottom:1.5rem;
  position:relative;overflow:hidden;
  box-shadow:var(--shd);
  animation:fadeUp .45s ease both;
}
.welcome-banner::before{content:'';position:absolute;top:-55px;right:-25px;width:230px;height:230px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,76,0.16) 0%,transparent 68%);}
.welcome-banner::after{content:'';position:absolute;bottom:-80px;right:130px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,76,0.07) 0%,transparent 68%);}
.wb-inner{position:relative;z-index:1;}
.wb-greet{font-size:10px;color:var(--gold);font-weight:700;text-transform:uppercase;letter-spacing:.14em;margin-bottom:7px;}
.wb-name{font-family:'Playfair Display',serif;font-size:24px;font-weight:700;color:#fff;margin-bottom:4px;}
.wb-sub{font-size:12px;color:rgba(255,255,255,0.38);margin-bottom:14px;}
.wb-stats{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.wbs{display:flex;flex-direction:column;gap:2px;}
.wbsv{font-family:'Playfair Display',serif;font-size:22px;font-weight:700;color:#fff;line-height:1;}
.wbsl{font-size:9px;color:rgba(255,255,255,0.3);text-transform:uppercase;letter-spacing:.06em;}
.wb-div{width:1px;height:28px;background:rgba(255,255,255,0.09);}
.wb-prog-wrap{margin-top:14px;background:rgba(255,255,255,0.07);border-radius:10px;height:3px;}
.wb-prog{height:3px;border-radius:10px;background:linear-gradient(90deg,var(--gold),var(--gold2));animation:growBar 1.1s cubic-bezier(.4,0,.2,1) .3s both;}

/* Bloomberg Stat Cards */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:1.5rem;}
.stat-card{
  background:var(--navy);border:1px solid rgba(255,255,255,0.07);
  border-radius:var(--rl);padding:18px 18px 16px;
  position:relative;overflow:hidden;
  animation:fadeUp .45s ease both;
  transition:transform .2s,box-shadow .2s;
}
.stat-card::after{content:'';position:absolute;top:0;left:0;right:0;height:2px;border-radius:var(--rl) var(--rl) 0 0;}
.stat-card.c-gold::after{background:linear-gradient(90deg,var(--gold),var(--gold2));}
.stat-card.c-green::after{background:linear-gradient(90deg,#0f9b6e,#4ade80);}
.stat-card.c-blue::after{background:linear-gradient(90deg,#3b82f6,#60a5fa);}
.stat-card.c-purple::after{background:linear-gradient(90deg,#a855f7,#c084fc);}
.stat-card:nth-child(1){animation-delay:.05s}.stat-card:nth-child(2){animation-delay:.1s}
.stat-card:nth-child(3){animation-delay:.15s}.stat-card:nth-child(4){animation-delay:.2s}
.stat-card:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(7,16,31,0.35);}
.stat-icon{font-size:18px;margin-bottom:12px;display:block;}
.stat-label{font-size:9px;color:rgba(255,255,255,0.32);text-transform:uppercase;letter-spacing:.08em;font-weight:600;margin-bottom:5px;}
.stat-value{font-family:'Playfair Display',serif;font-size:30px;font-weight:700;color:#fff;line-height:1;}
.stat-sub{font-size:10px;margin-top:7px;font-weight:500;}
.stat-sub.gold{color:var(--gold);}
.stat-sub.green{color:#4ade80;}
.stat-sub.blue{color:#60a5fa;}
.stat-sub.purple{color:#c084fc;}

/* Continue bar */
.continue-bar{
  background:var(--white);border:1px solid var(--bdr);
  border-radius:var(--rl);padding:13px 18px;
  display:flex;align-items:center;gap:14px;
  margin-bottom:1.5rem;
  animation:fadeUp .45s .22s ease both;
  transition:box-shadow .2s,transform .2s;
}
.continue-bar:hover{box-shadow:var(--shm);transform:translateY(-1px);}
.continue-thumb{width:84px;height:54px;background:linear-gradient(135deg,var(--navy),var(--navy3));border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;border:1px solid rgba(201,168,76,0.18);text-decoration:none;}
.continue-lbl{font-size:9px;color:var(--t3);text-transform:uppercase;letter-spacing:.08em;font-weight:600;}
.continue-name{font-size:14px;font-weight:600;color:var(--t1);margin:3px 0;}
.continue-meta{font-size:12px;color:var(--t2);}

/* Section header */
.section-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.section-title{font-family:'Playfair Display',serif;font-size:17px;font-weight:700;color:var(--t1);}

/* Course grid */
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;}
.course-card{
  background:var(--white);border:1px solid var(--bdr);
  border-radius:var(--rl);overflow:hidden;
  box-shadow:var(--sh);text-decoration:none;display:block;
  animation:fadeUp .45s ease both;
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shd);border-color:var(--goldbdr);}
.course-card:nth-child(1){animation-delay:.1s}.course-card:nth-child(2){animation-delay:.15s}.course-card:nth-child(3){animation-delay:.2s}
.course-card:nth-child(4){animation-delay:.25s}.course-card:nth-child(5){animation-delay:.3s}.course-card:nth-child(6){animation-delay:.35s}
.course-thumb{height:88px;display:flex;align-items:center;justify-content:center;font-size:32px;position:relative;}
.course-play{position:absolute;bottom:8px;right:9px;width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,0.88);display:flex;align-items:center;justify-content:center;font-size:9px;color:var(--t2);box-shadow:0 1px 5px rgba(0,0,0,0.1);}
.subj-phys {background:linear-gradient(145deg,#dbeafe,#bfdbfe);}
.subj-path {background:linear-gradient(145deg,#fde8d8,#fcd5b8);}
.subj-ana  {background:linear-gradient(145deg,#dcfce7,#bbf7d0);}
.subj-pharm{background:linear-gradient(145deg,#fef9c3,#fef08a);}
.subj-micro{background:linear-gradient(145deg,#ede9fe,#ddd6fe);}
.subj-bioc {background:linear-gradient(145deg,#fce7f3,#fbcfe8);}
.subj-default{background:linear-gradient(145deg,#f1f5f9,#e2e8f0);}
.course-body{padding:13px 15px;}
.course-name{font-size:13px;font-weight:700;color:var(--t1);margin-bottom:2px;}
.course-meta-text{font-size:11px;color:var(--t3);}
.prog-wrap{margin-top:10px;background:var(--bg);border-radius:8px;height:3px;}
.prog-bar{height:3px;border-radius:8px;background:linear-gradient(90deg,var(--gold),var(--gold2));transition:width .5s ease;}
.prog-pct{font-size:10px;color:var(--t3);margin-top:5px;}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:var(--r);font-size:13px;font-weight:600;border:none;transition:all .18s;cursor:pointer;letter-spacing:.02em;}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--gold2));color:var(--navy);box-shadow:0 2px 12px rgba(201,168,76,0.28);}
.btn-primary:hover{background:linear-gradient(135deg,#b8952e,#d4b54a);box-shadow:0 4px 18px rgba(201,168,76,0.4);transform:translateY(-1px);}
.btn-outline{background:var(--white);color:var(--t1);border:1px solid var(--bdr);}
.btn-outline:hover{background:var(--bg);border-color:#c8cfdf;}
.btn-dark{background:var(--navy);color:#fff;}
.btn-dark:hover{background:var(--navy2);}
.btn-danger{background:var(--red);color:#fff;}
.btn-danger:hover{background:#c53030;}
.btn-link{background:none;border:none;color:var(--gold);font-size:12px;font-weight:600;cursor:pointer;padding:0;}
.btn-sm{padding:6px 13px;font-size:12px;}
.btn-full{width:100%;justify-content:center;}

/* Filter chips */
.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:1.25rem;}
.chip{padding:6px 14px;border-radius:20px;font-size:12px;font-weight:500;border:1px solid var(--bdr);background:var(--white);color:var(--t2);cursor:pointer;transition:all .15s;}
.chip:hover{border-color:var(--gold);color:var(--gold);}
.chip.active{background:var(--navy);color:var(--gold);border-color:var(--navy);}

/* Video page */
.video-layout{display:grid;grid-template-columns:1fr 300px;gap:1.5rem;}
.video-player-box{background:var(--navy);border-radius:var(--rl);overflow:hidden;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;box-shadow:var(--shd);}
.video-player-box iframe{width:100%;height:100%;border:none;display:block;}
.video-placeholder{text-align:center;color:rgba(255,255,255,0.35);}
.big-play{width:64px;height:64px;border-radius:50%;background:var(--golddim);border:1px solid var(--goldbdr);display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 14px;cursor:pointer;color:var(--gold);transition:all .2s;}
.big-play:hover{background:rgba(201,168,76,0.22);transform:scale(1.06);}
.video-info{padding:1.25rem 0 0;}
.video-title-text{font-family:'Playfair Display',serif;font-size:19px;font-weight:700;margin-bottom:5px;color:var(--t1);}
.video-sub-text{font-size:13px;color:var(--t2);}
.tag-row{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap;}
.tag{font-size:11px;padding:4px 11px;border-radius:20px;font-weight:600;}
.tag-step{background:var(--golddim);color:var(--gold);border:1px solid var(--goldbdr);}
.tag-subject{background:var(--bluebg);color:var(--bluetx);}

/* Playlist */
.playlist-panel{background:var(--white);border:1px solid var(--bdr);border-radius:var(--rl);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;}
.playlist-hdr{padding:14px 16px;border-bottom:1px solid var(--bdr);font-size:13px;font-weight:700;display:flex;justify-content:space-between;align-items:center;color:var(--t1);}
.playlist-hdr span{font-size:11px;color:var(--t3);font-weight:400;}
.playlist-scroll{overflow-y:auto;max-height:440px;}
.playlist-item{display:flex;align-items:center;gap:10px;padding:11px 16px;cursor:pointer;border-bottom:1px solid var(--bdr);transition:background .12s;text-decoration:none;}
.playlist-item:hover{background:var(--bg);}
.playlist-item.active{background:var(--golddim);border-left:3px solid var(--gold);}
.pl-num{font-size:11px;color:var(--t3);width:16px;text-align:center;flex-shrink:0;}
.pl-icon{font-size:14px;width:20px;text-align:center;color:var(--gold);flex-shrink:0;}
.pl-info{flex:1;min-width:0;}
.pl-name{font-size:12px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--t1);}
.pl-dur{font-size:11px;color:var(--t3);margin-top:2px;}

/* Admin */
.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;}
.panel{background:var(--white);border:1px solid var(--bdr);border-radius:var(--rl);padding:1.5rem;box-shadow:var(--sh);}
.panel-title{font-family:'Playfair Display',serif;font-size:15px;font-weight:700;margin-bottom:1.25rem;display:flex;align-items:center;gap:8px;color:var(--t1);}
.panel-icon{font-size:17px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.form-group{margin-bottom:13px;}
.form-group:last-child{margin-bottom:0;}
.form-label{font-size:11px;color:var(--t2);margin-bottom:5px;display:block;font-weight:600;text-transform:uppercase;letter-spacing:.05em;}
.form-control{width:100%;padding:9px 12px;font-size:13px;border:1px solid var(--bdr);border-radius:var(--r);background:var(--bg);color:var(--t1);outline:none;transition:border-color .15s,box-shadow .15s;}
.form-control:focus{border-color:var(--gold);background:var(--white);box-shadow:0 0 0 3px rgba(201,168,76,0.12);}
.data-table{width:100%;border-collapse:collapse;font-size:12px;}
.data-table th{text-align:left;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--t3);padding:0 0 10px;border-bottom:1px solid var(--bdr);}
.data-table td{padding:10px 0;border-bottom:1px solid var(--bdr);vertical-align:middle;color:var(--t1);}
.data-table tr:last-child td{border-bottom:none;}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:10px;font-weight:700;}
.badge-active{background:var(--greenbg);color:var(--greentx);}
.badge-trial{background:var(--amberbg);color:var(--ambertx);}
.badge-admin{background:var(--golddim);color:var(--gold);}
.badge-pro{background:var(--golddim);color:var(--gold);}

/* Alerts */
.alert{padding:11px 14px;border-radius:var(--r);font-size:13px;margin-bottom:1rem;font-weight:500;}
.alert-error{background:var(--redbg);color:var(--red);border:1px solid rgba(229,62,62,0.2);}
.alert-success{background:var(--greenbg);color:var(--greentx);border:1px solid rgba(15,155,110,0.2);}

/* ══════════════════════════════
   AUTH — Premium Split
══════════════════════════════ */
.auth-wrap{min-height:100vh;display:flex;background:var(--navy);}
.auth-left{flex:1;display:flex;align-items:center;justify-content:center;padding:3rem;position:relative;overflow:hidden;background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,#0f1e35 100%);}
.auth-glow1{position:absolute;top:10%;left:20%;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,76,0.11) 0%,transparent 70%);pointer-events:none;}
.auth-glow2{position:absolute;bottom:8%;right:12%;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(201,168,76,0.06) 0%,transparent 70%);pointer-events:none;}
.auth-left-inner{position:relative;z-index:1;max-width:400px;animation:fadeUp .5s ease both;}
.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:2.5rem;}
.auth-brand-icon{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--gold),var(--gold2));display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 4px 20px rgba(201,168,76,0.4);}
.auth-brand-name{font-family:'Playfair Display',serif;color:#fff;font-size:20px;font-weight:700;}
.auth-headline{font-family:'Playfair Display',serif;font-size:38px;font-weight:700;color:#fff;line-height:1.2;margin-bottom:1rem;}
.auth-headline span{color:var(--gold);}
.auth-tagline{font-size:14px;color:rgba(255,255,255,0.38);line-height:1.7;margin-bottom:2.5rem;}
.auth-features{display:flex;flex-direction:column;gap:14px;}
.auth-feat{display:flex;align-items:center;gap:12px;}
.auth-feat-ic{width:28px;height:28px;border-radius:8px;background:var(--golddim);border:1px solid var(--goldbdr);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;}
.auth-feat-txt{font-size:13px;color:rgba(255,255,255,0.4);}

.auth-right{width:460px;min-width:460px;background:var(--white);display:flex;align-items:center;justify-content:center;padding:3rem;}
.auth-card{width:100%;max-width:380px;animation:fadeUp .5s .1s ease both;}
.auth-eyebrow{font-size:10px;color:var(--gold);font-weight:700;text-transform:uppercase;letter-spacing:.12em;margin-bottom:8px;}
.auth-title{font-family:'Playfair Display',serif;font-size:26px;font-weight:700;color:var(--t1);margin-bottom:5px;}
.auth-sub{font-size:13px;color:var(--t3);margin-bottom:1.75rem;}
.auth-tabs{display:flex;background:var(--bg);border-radius:var(--r);padding:4px;margin-bottom:1.75rem;}
.auth-tab{flex:1;padding:8px;text-align:center;border-radius:8px;font-size:13px;font-weight:600;border:none;background:none;color:var(--t3);cursor:pointer;transition:all .15s;}
.auth-tab.active{background:var(--white);color:var(--t1);box-shadow:var(--sh);}
.form-footer{text-align:center;margin-top:1rem;font-size:12px;color:var(--t3);}
.form-footer a{color:var(--gold);font-weight:600;}

/* Responsive */
@media(max-width:1024px){
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .course-grid{grid-template-columns:repeat(2,1fr);}
  .video-layout{grid-template-columns:1fr;}
  .admin-grid{grid-template-columns:1fr;}
  .auth-left{display:none;}
  .auth-right{width:100%;min-width:0;}
}
@media(max-width:640px){
  .sidebar{transform:translateX(-100%);}
  .main-wrap{margin-left:0;}
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .course-grid{grid-template-columns:1fr;}
}

/* ══════════════════════════════
   MOBILE — Full responsive fix
   Android Chrome optimized
══════════════════════════════ */

/* Hamburger button — hidden on desktop */
.hamburger {
  display: none;
  width: 36px; height: 36px;
  background: none; border: none;
  cursor: pointer; padding: 6px;
  border-radius: var(--r);
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}
.hamburger span {
  display: block; width: 20px; height: 2px;
  background: var(--t1); border-radius: 2px;
  transition: all .3s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Sidebar overlay */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(7,16,31,0.6);
  z-index: 99;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.active { display: block; }

/* Bottom nav — mobile only, hidden on desktop */
.bottom-nav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 8px 0 max(8px, env(safe-area-inset-bottom));
  z-index: 98;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
}
.bottom-nav-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 3px;
  padding: 6px 12px; border-radius: 10px;
  color: rgba(255,255,255,0.4);
  font-size: 10px; font-weight: 600;
  text-decoration: none; border: none;
  background: none; cursor: pointer;
  transition: all .15s; flex: 1;
}
.bottom-nav-item.active { color: var(--gold); }
.bottom-nav-item .bn-icon { font-size: 20px; line-height: 1; }

@media (max-width: 768px) {
  /* Show hamburger */
  .hamburger { display: flex; }

  /* Sidebar slides in from left */
  .sidebar {
    transform: translateX(-100%);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
    z-index: 100;
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(7,16,31,0.4);
  }

  /* Main takes full width */
  .main-wrap { margin-left: 0; }

  /* Topbar — tighter on mobile */
  .topbar {
    padding: .75rem 1rem;
    gap: 10px;
  }
  .topbar-title { font-size: 16px; }

  /* Hide search on mobile — use the search in content */
  .search-wrap { display: none; }

  /* Content padding tighter */
  .content { padding: 1rem; }

  /* Stats — 2 col on mobile */
  .stats-row { grid-template-columns: repeat(2,1fr); gap: 10px; }
  .stat-value { font-size: 22px; }

  /* Welcome banner */
  .welcome-banner { padding: 1.25rem; }
  .wb-name { font-size: 20px; }
  .wb-stats { gap: 12px; }
  .wbsv { font-size: 18px; }
  .wb-div { display: none; }

  /* Course grid — 1 col on small mobile */
  .course-grid { grid-template-columns: repeat(2,1fr); gap: 10px; }

  /* Continue bar */
  .continue-bar { flex-wrap: wrap; }
  .continue-thumb { width: 60px; height: 42px; font-size: 18px; }

  /* Video layout */
  .video-layout { grid-template-columns: 1fr; }

  /* Admin grid */
  .admin-grid { grid-template-columns: 1fr; }

  /* Two col widgets */
  .two-col { grid-template-columns: 1fr; }

  /* Show bottom nav */
  .bottom-nav { display: flex; }

  /* Add padding so content isn't behind bottom nav */
  .content { padding-bottom: 80px; }

  /* Tab nav scroll on mobile */
  .tab-nav { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
  .tnav { min-width: 80px; white-space: nowrap; }

  /* Filter row scroll */
  .filter-row { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .chip { white-space: nowrap; flex-shrink: 0; }

  /* Auth page — full screen on mobile */
  .auth-left { display: none; }
  .auth-right { width: 100%; min-width: 0; padding: 2rem 1.5rem; }

  /* Notif button hide */
  .notif-btn { display: none; }
}

@media (max-width: 400px) {
  .course-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2,1fr); }
  .stat-value { font-size: 20px; }
}