:root{
  --navy:#1B2340;
  --navy-2:#262f52;
  --navy-3:#323d6b;
  --paper:#F5F5F0;
  --paper-2:#ECEADF;
  --paper-3:#E2DFD0;
  --highlighter:#F4D35E;
  --highlighter-2:#f9e28a;
  --coral:#FF6B6B;
  --sage:#3A7D5C;
  --ink:#1B2340;
  --ink-soft:#5B6285;
  --white:#fff;
  --radius:14px;
  --shadow: 0 10px 30px rgba(27,35,64,0.12);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:'Space Grotesk', sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.display{font-family:'Fraunces', serif;font-weight:600;letter-spacing:-0.01em;margin:0;}
p{margin:0;}
a{color:inherit;}
button{font-family:inherit;cursor:pointer;}
img{max-width:100%;}
::selection{background:var(--highlighter);color:var(--navy);}
:focus-visible{outline:2.5px solid var(--navy);outline-offset:2px;}
.wrap{max-width:1160px;margin:0 auto;padding:0 28px;}
.wrap-narrow{max-width:760px;margin:0 auto;padding:0 28px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-weight:600;font-size:0.95rem;
  transition:transform .15s ease, box-shadow .15s ease;white-space:nowrap;border:none;
  text-decoration:none;
}
.btn-primary{background:var(--navy);color:var(--paper);box-shadow:0 4px 0 var(--navy-3);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--navy-3);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 0 var(--navy-3);}
.btn-ghost{background:transparent;border:1.5px solid var(--navy);color:var(--navy);}
.btn-ghost:hover{background:var(--navy);color:var(--paper);}
.btn-highlight{background:var(--highlighter);color:var(--navy);box-shadow:0 4px 0 #d9b636;}
.btn-highlight:hover{transform:translateY(-2px);}
.btn-danger{background:#FFF0EF;color:#B84A45;border:1px solid var(--coral);}
.btn-danger:hover{background:var(--coral);color:#fff;}
.btn-sm{padding:9px 16px;font-size:0.85rem;}
.btn-full{width:100%;}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none !important;}

/* ---------- nav ---------- */
nav.site-nav{position:sticky;top:0;z-index:50;background:rgba(245,245,240,0.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--paper-3);}
.nav-inner{max-width:1160px;margin:0 auto;padding:16px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;font-family:'Fraunces',serif;font-weight:700;font-size:1.25rem;text-decoration:none;color:var(--ink);}
.logo-mark{width:26px;height:26px;background:var(--navy);border-radius:6px;transform:rotate(-6deg);box-shadow:4px 4px 0 var(--highlighter);flex-shrink:0;}
.nav-links{display:flex;align-items:center;gap:24px;font-size:0.95rem;}
.nav-links a{text-decoration:none;color:var(--ink-soft);transition:color .15s;}
.nav-links a:hover{color:var(--navy);}
.nav-mobile-toggle{display:none;background:none;border:none;font-size:1.4rem;}
.announcement{background:var(--navy);color:var(--paper);text-align:center;font-size:0.85rem;padding:9px 20px;}
.announcement a{text-decoration:underline;}

/* ---------- flash messages ---------- */
.flash-stack{position:fixed;top:80px;right:20px;z-index:200;display:flex;flex-direction:column;gap:10px;max-width:360px;}
.flash-msg{padding:14px 18px;border-radius:12px;font-size:0.9rem;box-shadow:var(--shadow);animation:slidein .2s ease;}
.flash-success{background:#E6F4EC;color:#2c6248;border:1px solid var(--sage);}
.flash-error{background:#FFF0EF;color:#B84A45;border:1px solid var(--coral);}
.flash-info{background:var(--paper-2);color:var(--ink);border:1px solid var(--paper-3);}
@keyframes slidein{from{transform:translateX(30px);opacity:0;}to{transform:translateX(0);opacity:1;}}

/* ---------- footer ---------- */
footer.site-footer{background:var(--navy);color:#B7BCDA;padding:50px 0 30px;margin-top:60px;}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:30px;}
.footer-inner .logo{color:var(--paper);}
.footer-links{display:flex;gap:40px;flex-wrap:wrap;}
.footer-col h5{font-size:0.8rem;text-transform:uppercase;letter-spacing:0.06em;color:#8b90b3;margin-bottom:12px;}
.footer-col a{display:block;color:#B7BCDA;text-decoration:none;font-size:0.9rem;margin-bottom:8px;}
.footer-col a:hover{color:var(--highlighter);}
footer .fine{font-size:0.8rem;margin-top:30px;color:#7c82a8;border-top:1px solid var(--navy-3);padding-top:20px;}

/* ---------- generic cards / sections ---------- */
section{padding:80px 0;}
.section-head{max-width:600px;margin-bottom:48px;}
.section-head h2{font-size:2.1rem;margin-bottom:12px;}
.section-head p{color:var(--ink-soft);font-size:1.05rem;}
.card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--paper-3);padding:28px;}

/* ---------- auth forms ---------- */
.auth-shell{min-height:calc(100vh - 200px);display:flex;align-items:center;justify-content:center;padding:60px 20px;}
.auth-card{background:var(--white);border-radius:20px;box-shadow:var(--shadow);padding:44px;max-width:440px;width:100%;border:1px solid var(--paper-3);}
.auth-card h1{font-size:1.7rem;margin-bottom:8px;}
.auth-card .sub{color:var(--ink-soft);font-size:0.92rem;margin-bottom:28px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:0.85rem;font-weight:600;margin-bottom:7px;color:var(--ink);}
.field input[type=text], .field input[type=email], .field input[type=password], .field input[type=url], .field input[type=number], .field textarea, .field select{
  width:100%;padding:12px 14px;border:1.5px solid var(--paper-3);border-radius:10px;font-family:inherit;font-size:0.95rem;background:var(--paper);color:var(--ink);
}
.field input:focus, .field textarea:focus, .field select:focus{outline:2px solid var(--navy);outline-offset:1px;border-color:var(--navy);}
.field textarea{resize:vertical;min-height:120px;}
.field .checkbox-row{display:flex;align-items:center;gap:8px;font-size:0.88rem;color:var(--ink-soft);}
.field .checkbox-row input{width:auto;}
.field-error{color:#B84A45;font-size:0.8rem;margin-top:6px;}
.form-foot{text-align:center;font-size:0.9rem;color:var(--ink-soft);margin-top:20px;}
.form-foot a{color:var(--navy);font-weight:600;text-decoration:none;}
.form-foot a:hover{text-decoration:underline;}
hr.divider{border:none;border-top:1px solid var(--paper-3);margin:26px 0;}

/* ---------- pricing ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.price-card{background:var(--white);border-radius:20px;padding:36px 30px;border:1.5px solid var(--paper-3);display:flex;flex-direction:column;}
.price-card.featured{background:var(--navy);color:var(--paper);border-color:var(--navy);position:relative;transform:scale(1.03);}
.price-card.featured .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--highlighter);color:var(--navy);font-size:0.72rem;font-weight:700;padding:6px 14px;border-radius:999px;text-transform:uppercase;}
.price-card h3{font-size:1.3rem;margin-bottom:6px;}
.price-card .price{font-family:'Fraunces',serif;font-size:2.2rem;margin:14px 0 4px;}
.price-card .desc{font-size:0.9rem;color:var(--ink-soft);margin-bottom:22px;}
.price-card.featured .desc{color:#B7BCDA;}
.price-card ul{list-style:none;padding:0;margin:0 0 26px;display:flex;flex-direction:column;gap:11px;flex:1;}
.price-card li{font-size:0.9rem;display:flex;gap:10px;align-items:flex-start;}
.price-card li:before{content:"✓";color:var(--sage);font-weight:700;}
.price-card.featured li:before{color:var(--highlighter);}

/* ---------- dashboard shell ---------- */
.app-shell{min-height:calc(100vh - 76px);}
.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;flex-wrap:wrap;gap:16px;}
.app-header h1{font-size:1.9rem;}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:36px;}
.stat-box{background:var(--white);border-radius:var(--radius);padding:22px;border:1px solid var(--paper-3);}
.stat-box .num{font-family:'Fraunces',serif;font-size:1.9rem;}
.stat-box .lbl{font-size:0.82rem;color:var(--ink-soft);margin-top:4px;}
.kit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.kit-card{background:var(--white);border-radius:var(--radius);padding:22px;border:1px solid var(--paper-3);text-decoration:none;color:var(--ink);display:block;transition:box-shadow .15s, transform .15s;}
.kit-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);}
.kit-card .tag{font-size:0.72rem;text-transform:uppercase;color:var(--ink-soft);letter-spacing:0.05em;margin-bottom:8px;}
.kit-card h4{font-size:1.05rem;margin-bottom:6px;}
.kit-card .meta{font-size:0.82rem;color:var(--ink-soft);}
.empty-state{text-align:center;padding:60px 20px;color:var(--ink-soft);}
.empty-state h3{color:var(--ink);margin-bottom:8px;}

/* ---------- study tool ---------- */
.tool-card{background:var(--white);border-radius:20px;box-shadow:var(--shadow);padding:40px;border:1px solid var(--paper-3);}
.tabs{display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap;}
.tab{padding:10px 18px;border-radius:999px;font-weight:600;font-size:0.9rem;background:var(--paper-2);color:var(--ink-soft);transition:all .15s;border:none;}
.tab.active{background:var(--navy);color:var(--paper);}
.usage-pill{margin-left:auto;font-size:0.82rem;color:var(--ink-soft);display:flex;align-items:center;gap:8px;background:var(--paper);padding:8px 14px;border-radius:999px;border:1px solid var(--paper-3);}
.plan-badge{background:var(--highlighter);color:var(--navy);font-weight:700;padding:2px 8px;border-radius:6px;font-size:0.72rem;text-transform:uppercase;}
.pane{display:none;}
.pane.active{display:block;}
.dropzone{border:2px dashed var(--paper-3);border-radius:var(--radius);padding:48px 24px;text-align:center;transition:all .15s;cursor:pointer;background:var(--paper);}
.dropzone.dragover,.dropzone:hover{border-color:var(--navy);background:var(--paper-2);}
.dropzone .ico{font-size:2.2rem;margin-bottom:12px;}
.dropzone .main-txt{font-weight:600;margin-bottom:6px;}
.dropzone .sub-txt{font-size:0.85rem;color:var(--ink-soft);}
.file-preview{display:flex;align-items:center;gap:14px;padding:16px;background:var(--paper);border-radius:var(--radius);border:1px solid var(--paper-3);margin-top:16px;}
.file-preview img{width:56px;height:56px;object-fit:cover;border-radius:8px;}
.file-preview .icon-box{width:56px;height:56px;border-radius:8px;background:var(--navy);color:var(--paper);display:flex;align-items:center;justify-content:center;font-size:1.4rem;}
.file-preview .meta{flex:1;}
.file-preview .meta .name{font-weight:600;font-size:0.9rem;word-break:break-all;}
.file-preview .meta .size{font-size:0.8rem;color:var(--ink-soft);}
.hint-txt{font-size:0.82rem;color:var(--ink-soft);}
.generate-row{display:flex;align-items:center;gap:16px;margin-top:24px;flex-wrap:wrap;}

.loading-state{display:none;padding:50px 0;text-align:center;}
.loading-state.active{display:block;}
.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--paper-3);border-top-color:var(--navy);animation:spin .8s linear infinite;margin:0 auto 20px;}
@keyframes spin{to{transform:rotate(360deg);}}
.loading-stage{font-family:'Fraunces',serif;font-size:1.15rem;color:var(--ink-soft);transition:opacity .2s;}

/* ---------- study kit view ---------- */
.kit-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:30px;flex-wrap:wrap;}
.kit-hero .kicker{font-size:0.8rem;text-transform:uppercase;color:var(--ink-soft);letter-spacing:0.06em;margin-bottom:8px;}
.kit-hero h1{font-size:2rem;}
.kit-actions{display:flex;gap:10px;}
.study-tabs{display:flex;gap:6px;border-bottom:2px solid var(--paper-3);margin-bottom:32px;overflow-x:auto;}
.study-tab{padding:12px 18px;font-weight:600;font-size:0.92rem;color:var(--ink-soft);border-bottom:2.5px solid transparent;margin-bottom:-2px;white-space:nowrap;background:none;border-top:none;border-left:none;border-right:none;}
.study-tab.active{color:var(--navy);border-bottom-color:var(--highlighter);}
.study-pane{display:none;}
.study-pane.active{display:block;}

.summary-block{background:var(--white);border-radius:var(--radius);padding:26px;margin-bottom:28px;border-left:4px solid var(--highlighter);box-shadow:var(--shadow);}
.summary-block h4{font-family:'Fraunces',serif;font-size:1.1rem;margin-bottom:10px;}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:10px;}
.chip{background:var(--navy);color:var(--paper);padding:8px 16px;border-radius:999px;font-size:0.85rem;font-weight:500;}
.def-list{display:flex;flex-direction:column;gap:14px;}
.def-item{background:var(--white);padding:18px 20px;border-radius:12px;border:1px solid var(--paper-3);}
.def-item .term{font-weight:700;margin-bottom:4px;}
.def-item .definition{color:var(--ink-soft);font-size:0.92rem;}
.fact-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;}
.fact-list li{background:var(--white);padding:14px 18px;border-radius:10px;border:1px solid var(--paper-3);font-size:0.92rem;position:relative;padding-left:38px;}
.fact-list li:before{content:"★";position:absolute;left:14px;color:var(--highlighter);}
.explain-item{background:var(--paper-2);padding:20px;border-radius:12px;margin-bottom:14px;}
.explain-item .concept{font-weight:700;margin-bottom:6px;}

/* ---------- flashcard deck ---------- */
.deck-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px;}
.deck-stats{display:flex;gap:14px;font-size:0.85rem;color:var(--ink-soft);}
.deck-stats .know{color:var(--sage);font-weight:600;}
.deck-stats .review{color:var(--coral);font-weight:600;}
.deck{display:flex;flex-direction:column;align-items:center;gap:20px;}
.card-stage{width:100%;max-width:480px;height:280px;perspective:1400px;}
.flash-card{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.4,.2,.2,1);cursor:pointer;}
.flash-card.flipped{transform:rotateY(180deg);}
.flash-face{position:absolute;inset:0;border-radius:18px;backface-visibility:hidden;padding:34px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;box-shadow:var(--shadow);border:1px solid var(--paper-3);}
.flash-face.front{background:var(--white);}
.flash-face.back{background:var(--navy);color:var(--paper);transform:rotateY(180deg);}
.flash-face .kicker{font-size:0.75rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--ink-soft);margin-bottom:16px;}
.flash-face.back .kicker{color:#B7BCDA;}
.flash-face .content{font-family:'Fraunces',serif;font-size:1.25rem;font-weight:500;line-height:1.35;}
.flash-face.back .content{font-family:'Space Grotesk',sans-serif;font-size:1.02rem;font-weight:400;}
.deck-controls{display:flex;align-items:center;gap:14px;}
.deck-controls button{width:40px;height:40px;border-radius:50%;background:var(--paper-2);border:none;display:flex;align-items:center;justify-content:center;font-size:1.1rem;}
.deck-controls button:hover{background:var(--paper-3);}
.progress-txt{font-size:0.9rem;color:var(--ink-soft);min-width:60px;text-align:center;}
.judge-row{display:flex;gap:12px;}
.judge-btn{padding:10px 20px;border-radius:999px;font-weight:600;font-size:0.88rem;border:none;}
.judge-btn.know{background:#E6F4EC;color:var(--sage);}
.judge-btn.review{background:#FFEEEC;color:#C0524B;}
.deck-tools{display:flex;gap:10px;margin-top:6px;}

/* ---------- quiz ---------- */
.quiz-q{background:var(--white);border-radius:var(--radius);padding:26px;margin-bottom:18px;border:1px solid var(--paper-3);}
.quiz-q h4{font-size:1.05rem;margin-bottom:16px;}
.quiz-options{display:flex;flex-direction:column;gap:10px;}
.quiz-option{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:10px;border:1.5px solid var(--paper-3);cursor:pointer;font-size:0.92rem;transition:all .12s;}
.quiz-option:hover{border-color:var(--navy);}
.quiz-option.selected{border-color:var(--navy);background:var(--paper-2);}
.quiz-option.correct{border-color:var(--sage);background:#E6F4EC;}
.quiz-option.incorrect{border-color:var(--coral);background:#FFF0EF;}
.quiz-explain{margin-top:12px;font-size:0.86rem;color:var(--ink-soft);background:var(--paper);padding:12px 14px;border-radius:8px;display:none;}
.quiz-explain.show{display:block;}
.quiz-score-banner{background:var(--navy);color:var(--paper);border-radius:var(--radius);padding:30px;text-align:center;margin-bottom:28px;}
.quiz-score-banner .score-num{font-family:'Fraunces',serif;font-size:2.6rem;color:var(--highlighter);}

/* ---------- admin ---------- */
.admin-shell{display:flex;min-height:calc(100vh - 0px);}
.admin-sidebar{width:240px;background:var(--navy);color:var(--paper);padding:24px 16px;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto;}
.admin-sidebar .logo{color:var(--paper);margin-bottom:30px;padding:0 8px;}
.admin-nav a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:8px;color:#B7BCDA;text-decoration:none;font-size:0.9rem;margin-bottom:2px;}
.admin-nav a:hover{background:var(--navy-2);color:var(--paper);}
.admin-nav a.active{background:var(--navy-2);color:var(--highlighter);font-weight:600;}
.admin-main{flex:1;padding:36px 40px;max-width:1400px;}
.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;flex-wrap:wrap;gap:12px;}
.admin-top h1{font-size:1.7rem;}
.admin-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px;}
.admin-stat{background:var(--white);border-radius:12px;padding:20px;border:1px solid var(--paper-3);}
.admin-stat .num{font-family:'Fraunces',serif;font-size:1.7rem;}
.admin-stat .lbl{font-size:0.78rem;color:var(--ink-soft);margin-top:4px;}
.admin-table{width:100%;border-collapse:collapse;background:var(--white);border-radius:12px;overflow:hidden;border:1px solid var(--paper-3);}
.admin-table th{text-align:left;font-size:0.75rem;text-transform:uppercase;letter-spacing:0.04em;color:var(--ink-soft);padding:12px 16px;background:var(--paper-2);border-bottom:1px solid var(--paper-3);}
.admin-table td{padding:12px 16px;border-bottom:1px solid var(--paper-3);font-size:0.88rem;}
.admin-table tr:last-child td{border-bottom:none;}
.status-badge{padding:3px 10px;border-radius:999px;font-size:0.75rem;font-weight:600;}
.status-active{background:#E6F4EC;color:var(--sage);}
.status-disabled{background:#FFF0EF;color:#B84A45;}
.mini-chart{display:flex;align-items:flex-end;gap:4px;height:80px;}
.mini-chart .bar{flex:1;background:var(--highlighter);border-radius:3px 3px 0 0;min-height:2px;}
.admin-card{background:var(--white);border-radius:12px;border:1px solid var(--paper-3);padding:24px;margin-bottom:24px;}
.admin-filters{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;}
.admin-filters input, .admin-filters select{padding:9px 12px;border-radius:8px;border:1.5px solid var(--paper-3);font-family:inherit;font-size:0.88rem;}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--navy);color:var(--paper);padding:14px 24px;border-radius:999px;font-size:0.9rem;font-weight:500;opacity:0;transition:all .25s;z-index:200;pointer-events:none;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ---------- error / maintenance pages ---------- */
.error-shell{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:40px 20px;}
.error-shell h1{font-size:3rem;margin-bottom:16px;}
.error-shell p{color:var(--ink-soft);margin-bottom:24px;max-width:420px;}

@media (max-width:900px){
  .stat-row,.pricing-grid,.kit-grid,.admin-stat-grid{grid-template-columns:1fr 1fr;}
  .admin-sidebar{position:fixed;left:-260px;transition:left .2s;z-index:100;}
  .admin-sidebar.open{left:0;}
  .admin-main{padding:24px 18px;}
}
@media (max-width:640px){
  .nav-links{position:fixed;top:68px;left:0;right:0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:20px 28px;border-bottom:1px solid var(--paper-3);display:none;}
  .nav-links.open{display:flex;}
  .nav-mobile-toggle{display:block;}
  .stat-row,.pricing-grid,.kit-grid,.admin-stat-grid{grid-template-columns:1fr;}
  .price-card.featured{transform:none;}
  .footer-inner{flex-direction:column;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important;transition-duration:0.01ms !important;}
}

/* =====================================================================
   POLISH PASS — smoother motion, refined hover states, scroll reveal
   ===================================================================== */

/* Smoother, more premium easing on core interactive elements. These
   override the earlier, simpler transition rules further up the file. */
.btn{transition:transform .25s cubic-bezier(.16,1,.3,1), box-shadow .25s cubic-bezier(.16,1,.3,1), background-color .2s ease;}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 0 var(--navy-3), 0 14px 24px rgba(27,35,64,0.18);}
.btn-ghost{transition:background-color .25s cubic-bezier(.16,1,.3,1), color .25s cubic-bezier(.16,1,.3,1), transform .25s cubic-bezier(.16,1,.3,1), box-shadow .25s cubic-bezier(.16,1,.3,1);}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(27,35,64,0.10);}
.btn-highlight{transition:transform .25s cubic-bezier(.16,1,.3,1), box-shadow .25s cubic-bezier(.16,1,.3,1);}
.btn-highlight:hover{box-shadow:0 8px 0 #d9b636, 0 14px 24px rgba(244,211,94,0.28);}

.card, .kit-card, .price-card, .stat-box, .step, .price-card.featured{
  transition:transform .35s cubic-bezier(.16,1,.3,1), box-shadow .35s cubic-bezier(.16,1,.3,1), border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(27,35,64,0.14);}
.kit-card:hover{transform:translateY(-5px);box-shadow:0 18px 34px rgba(27,35,64,0.16);border-color:var(--paper-3);}
.step:hover{transform:translateY(-4px);}
.price-card:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(27,35,64,0.12);}
.price-card.featured:hover{transform:scale(1.03) translateY(-5px);}
.stat-box:hover, .admin-stat:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(27,35,64,0.10);}

.tab, .study-tab, .quiz-option{transition:all .22s cubic-bezier(.16,1,.3,1);}
.dropzone{transition:all .25s cubic-bezier(.16,1,.3,1);}
.dropzone:hover{transform:translateY(-2px);}

/* Nav gains a soft shadow once the page has scrolled — toggled by JS
   via the .scrolled class, see static/js/site.js */
nav.site-nav{transition:box-shadow .3s ease, background-color .3s ease;}
nav.site-nav.scrolled{box-shadow:0 4px 20px rgba(27,35,64,0.08);background:rgba(245,245,240,0.97);}

/* Mobile nav: smooth slide+fade instead of an instant show/hide */
.nav-links{transition:opacity .25s ease, transform .25s ease;}
@media (max-width:640px){
  .nav-links{
    opacity:0;transform:translateY(-8px);pointer-events:none;
    display:flex !important;
  }
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto;}
}

/* Scroll-reveal: elements fade/slide up into view. JS adds .in-view when
   the element enters the viewport; falls back to visible-by-default if
   JS never runs (progressive enhancement, nothing ever hides permanently). */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);}
.reveal.in-view{opacity:1;transform:translateY(0);}
.reveal-delay-1{transition-delay:.08s;}
.reveal-delay-2{transition-delay:.16s;}
.reveal-delay-3{transition-delay:.24s;}

/* Hero flip-card gets a slightly richer shadow + easing to feel less flat */
.hero .stack > div, header.hero > div:last-child > div{
  transition:transform .5s cubic-bezier(.16,1,.3,1), box-shadow .4s ease;
}

/* Focus rings feel smoother instead of snapping in */
:focus-visible{transition:outline-offset .15s ease;}

/* =====================================================================
   SUPPORT WIDGET
   ===================================================================== */
.support-widget{position:fixed;right:22px;bottom:22px;z-index:300;}

.support-fab{
  position:relative;width:58px;height:58px;border-radius:50%;
  background:var(--navy);color:var(--paper);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 24px rgba(27,35,64,0.28), 0 2px 6px rgba(27,35,64,0.2);
  transition:transform .3s cubic-bezier(.16,1,.3,1), box-shadow .3s cubic-bezier(.16,1,.3,1), background-color .25s ease;
  border:none;
}
.support-fab:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 16px 32px rgba(27,35,64,0.32);}
.support-fab:active{transform:translateY(0) scale(0.97);}

.support-badge{
  position:absolute;top:-4px;right:-4px;min-width:20px;height:20px;padding:0 5px;
  background:var(--coral);color:#fff;border-radius:999px;
  font-size:0.7rem;font-weight:700;align-items:center;justify-content:center;
  border:2px solid var(--paper);
  animation:badgepop .4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes badgepop{from{transform:scale(0);}to{transform:scale(1);}}

.support-panel{
  position:absolute;right:0;bottom:74px;width:340px;max-width:calc(100vw - 44px);
  background:var(--white);border-radius:20px;
  box-shadow:0 24px 60px rgba(27,35,64,0.24), 0 4px 12px rgba(27,35,64,0.1);
  border:1px solid var(--paper-3);
  opacity:0;transform:translateY(16px) scale(0.97);pointer-events:none;
  transition:opacity .25s cubic-bezier(.16,1,.3,1), transform .3s cubic-bezier(.16,1,.3,1);
  overflow:hidden;
  transform-origin:bottom right;
}
.support-panel.open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;}

.support-panel-head{
  background:var(--navy);color:var(--paper);padding:20px 22px;
}
.support-panel-title{font-family:'Fraunces',serif;font-size:1.15rem;font-weight:600;}
.support-panel-sub{font-size:0.8rem;color:#B7BCDA;margin-top:3px;}

.support-panel-body{padding:20px 22px;max-height:60vh;overflow-y:auto;}

.support-reply-banner{
  display:block;background:var(--highlighter);color:var(--navy);
  padding:11px 14px;border-radius:10px;font-size:0.82rem;font-weight:600;
  text-decoration:none;margin-bottom:16px;transition:transform .2s ease;
}
.support-reply-banner:hover{transform:translateY(-1px);}

.support-form{display:flex;flex-direction:column;gap:14px;}
.support-field label{display:block;font-size:0.78rem;font-weight:600;color:var(--ink-soft);margin-bottom:5px;}
.support-field input, .support-field textarea{
  width:100%;padding:10px 12px;border:1.5px solid var(--paper-3);border-radius:10px;
  font-family:inherit;font-size:0.88rem;background:var(--paper);color:var(--ink);
  transition:border-color .2s ease;resize:vertical;
}
.support-field input:focus, .support-field textarea:focus{outline:none;border-color:var(--navy);}
.support-error{background:#FFF0EF;color:#B84A45;padding:10px 12px;border-radius:8px;font-size:0.82rem;}

.support-success{text-align:center;padding:10px 0;}
.support-success-icon{
  width:44px;height:44px;border-radius:50%;background:#E6F4EC;color:var(--sage);
  display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;
  margin:0 auto 14px;animation:badgepop .4s cubic-bezier(.34,1.56,.64,1);
}
.support-success-title{font-family:'Fraunces',serif;font-size:1.1rem;margin-bottom:6px;}
.support-success-sub{font-size:0.85rem;color:var(--ink-soft);margin-bottom:14px;}
.support-success-link{font-size:0.85rem;font-weight:600;color:var(--navy);text-decoration:none;}
.support-success-link:hover{text-decoration:underline;}

.support-panel-foot{
  border-top:1px solid var(--paper-3);padding:12px 22px;text-align:center;
}
.support-panel-foot a{font-size:0.82rem;color:var(--ink-soft);text-decoration:none;font-weight:600;}
.support-panel-foot a:hover{color:var(--navy);}

@media (max-width:480px){
  .support-widget{right:16px;bottom:16px;}
  .support-panel{right:-6px;width:calc(100vw - 32px);}
}

/* =====================================================================
   SUPPORT TICKET PAGES (my tickets / ticket thread / admin views)
   ===================================================================== */
.ticket-list{display:flex;flex-direction:column;gap:12px;}
.ticket-row{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  background:var(--white);border:1px solid var(--paper-3);border-radius:12px;
  padding:16px 20px;text-decoration:none;color:var(--ink);
  transition:transform .2s cubic-bezier(.16,1,.3,1), box-shadow .2s cubic-bezier(.16,1,.3,1);
}
.ticket-row:hover{transform:translateX(2px);box-shadow:0 8px 20px rgba(27,35,64,0.08);}
.ticket-row .subject{font-weight:600;margin-bottom:4px;}
.ticket-row .meta{font-size:0.8rem;color:var(--ink-soft);}

.ticket-status{padding:4px 12px;border-radius:999px;font-size:0.74rem;font-weight:700;text-transform:uppercase;letter-spacing:0.03em;white-space:nowrap;}
.ticket-status-open{background:#FFF3D6;color:#9A6B0A;}
.ticket-status-pending{background:#E4EBFF;color:#3856C4;}
.ticket-status-resolved{background:#E6F4EC;color:var(--sage);}

.ticket-thread{display:flex;flex-direction:column;gap:16px;margin-bottom:28px;}
.ticket-msg{max-width:78%;padding:14px 18px;border-radius:16px;font-size:0.92rem;line-height:1.5;}
.ticket-msg.from-user{align-self:flex-start;background:var(--paper-2);border-bottom-left-radius:4px;}
.ticket-msg.from-admin{align-self:flex-end;background:var(--navy);color:var(--paper);border-bottom-right-radius:4px;}
.ticket-msg .msg-meta{font-size:0.72rem;opacity:0.65;margin-bottom:6px;font-weight:600;}

@media (max-width:640px){
  .ticket-msg{max-width:92%;}
}

/* Mobile landing-page layout */
@media (max-width:640px) {
  header.hero {
    grid-template-columns:1fr !important;
    padding:56px 20px 40px !important;
  }

  header.hero h1 {
    font-size:2.35rem !important;
  }

  header.hero > div {
    min-width:0;
  }

  header.hero > div:last-child {
    height:260px !important;
    overflow:hidden;
  }

  .steps-grid,
  .benefits-grid {
    grid-template-columns:1fr !important;
  }
}