/* ============================================================
   Astute Edu Hub — Design System
   ============================================================ */

/* Astute EduHub brand — sampled from the institute's logo.
   ASTUTE wordmark #0090b0 · EDUHUB wordmark #b09858 · globe #203848
   Token names are kept from the original scale so every rule
   picks up the brand automatically — only the values changed. */
:root{
  --navy-900:#152532;   /* globe, darkened for large fills */
  --navy-800:#1b3040;
  --navy-700:#203848;   /* brand navy, straight from the globe */
  --indigo-600:#0090b0; /* brand teal — the ASTUTE wordmark    */
  --indigo-500:#26a8c8;
  --indigo-100:#e2f4f9;
  --amber-500:#b09858;  /* brand gold — the EDUHUB wordmark    */
  --amber-100:#f7f1e4;
  --green-600:#12864f;
  --green-100:#e2f6ec;
  --red-600:#c62b3f;
  --red-100:#fdeaec;
  --blue-100:#e3f2f7;
  --blue-600:#0090b0;

  /* the fragments flying off the globe — used for category accents */
  --frag-red:#c83838;
  --frag-yellow:#f8c800;
  --frag-green:#a0c868;
  --frag-orange:#e0a020;
  --frag-blue:#48a8c8;
  --frag-purple:#b060c8;

  --ink:#101d26;
  --ink-2:#374a56;
  --ink-3:#657b88;
  --ink-4:#95a8b3;
  --line:#e1e8ec;
  --line-2:#f0f4f6;
  --bg:#f5f8fa;
  --surface:#ffffff;

  --r-sm:8px; --r:12px; --r-lg:18px; --r-xl:26px;
  --sh-1:0 1px 2px rgba(16,20,37,.06), 0 1px 3px rgba(16,20,37,.05);
  --sh-2:0 4px 14px rgba(16,20,37,.07);
  --sh-3:0 14px 44px rgba(16,20,37,.12);
  --ff:'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max:1220px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--ff);
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--indigo-600);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5{margin:0 0 .5rem;line-height:1.25;font-weight:700;letter-spacing:-.01em}
h1{font-size:2.4rem} h2{font-size:1.75rem} h3{font-size:1.25rem} h4{font-size:1.05rem}
p{margin:0 0 1rem}
small{font-size:.82rem}
hr{border:0;border-top:1px solid var(--line);margin:1.5rem 0}
::selection{background:var(--indigo-100)}

.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.app-root{min-height:62vh}
.muted{color:var(--ink-3)}
.dim{color:var(--ink-4)}
.center{text-align:center}
.right{text-align:right}
.nowrap{white-space:nowrap}
.mono{font-family:ui-monospace,'SF Mono',Menlo,Consolas,monospace;font-size:.86em}
.strike{text-decoration:line-through;color:var(--ink-4)}
.hide{display:none !important}
.flex{display:flex;align-items:center}
.between{display:flex;align-items:center;justify-content:space-between;gap:12px}
.gap-4{gap:4px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}
.wrapf{flex-wrap:wrap}
.grow{flex:1}
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mb-0{margin-bottom:0}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}
.section{padding:56px 0}
.section-sm{padding:34px 0}

/* ── Topbar ─────────────────────────────────────────── */
.topbar{
  background:var(--navy-900);color:#b8d2d4;font-size:.8rem;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.topbar a{color:#fff;opacity:.9}
.topbar .tb-links{display:flex;gap:18px}

/* ── Header ─────────────────────────────────────────── */
.site-header{
  background:var(--surface);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;box-shadow:var(--sh-1);
}
.nav{display:flex;align-items:center;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;color:var(--navy-900);text-decoration:none;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
/* ── Logo ───────────────────────────────────────────── */
.brand-mark{
  width:40px;height:40px;flex:none;display:block;object-fit:contain;
}
.brand-word{font-weight:800;letter-spacing:-.01em;line-height:1.05;white-space:nowrap}
.brand-word .b-a{color:var(--indigo-600)}
.brand-word .b-e{color:var(--amber-500);font-weight:600}
.brand-sub{display:block;font-size:.6rem;font-weight:600;letter-spacing:.08em;color:var(--ink-4);margin-top:1px;white-space:nowrap}

/* The globe is dark navy, so on any dark surface the lockup sits
   on a white chip or it vanishes into the background. */
.brand-chip{
  display:inline-block;background:#fff;border-radius:14px;padding:14px 18px;
  box-shadow:0 6px 20px rgba(0,0,0,.18);
}
.nav-links{display:flex;gap:4px;margin-left:8px}
.nav-links a{
  padding:8px 13px;border-radius:9px;color:var(--ink-2);font-weight:600;font-size:.92rem;text-decoration:none;
}
.nav-links a:hover{background:var(--line-2);color:var(--ink);text-decoration:none}
.nav-links a.active{background:var(--indigo-100);color:var(--indigo-600)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.cart-btn{position:relative;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;cursor:pointer;font-size:17px}
.cart-btn:hover{border-color:var(--indigo-500)}
.cart-count{
  position:absolute;top:-6px;right:-6px;background:var(--amber-500);color:#25190a;font-size:.66rem;
  font-weight:800;min-width:18px;height:18px;border-radius:9px;display:grid;place-items:center;padding:0 5px
}
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:17px;cursor:pointer}

/* ── Buttons ────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:10px;border:1px solid transparent;
  font-family:inherit;font-size:.92rem;font-weight:650;cursor:pointer;
  background:var(--indigo-600);color:#fff;transition:.15s;text-decoration:none;white-space:nowrap;
}
.btn:hover{background:var(--indigo-500);text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn:active{transform:none}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line)}
.btn-ghost:hover{background:#fff;border-color:var(--indigo-500);color:var(--indigo-600)}
.btn-amber{background:var(--amber-500);color:#291b04}
.btn-amber:hover{background:#ffb941}
.btn-dark{background:var(--navy-900)}
.btn-dark:hover{background:var(--navy-700)}
.btn-danger{background:var(--red-600)}
.btn-danger:hover{background:#e0384d}
.btn-success{background:var(--green-600)}
.btn-success:hover{background:#17a862}
.btn-sm{padding:6px 12px;font-size:.82rem;border-radius:8px}
.btn-lg{padding:14px 26px;font-size:1rem;border-radius:12px}
.btn-block{width:100%}
.btn-link{background:none;border:none;color:var(--indigo-600);padding:4px 6px;cursor:pointer;font-family:inherit;font-size:.86rem;font-weight:600}
.btn-link:hover{text-decoration:underline;transform:none;box-shadow:none;background:none}
.icon-btn{border:1px solid var(--line);background:#fff;width:32px;height:32px;border-radius:8px;cursor:pointer;display:grid;place-items:center;font-size:14px}
.icon-btn:hover{border-color:var(--indigo-500);background:var(--indigo-100)}

/* ── Cards & surfaces ───────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.card-p{padding:22px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.panel-head h3{margin:0}

/* ── Badges ─────────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:.74rem;font-weight:700;background:var(--line-2);color:var(--ink-2);letter-spacing:.01em}
.b-indigo{background:var(--indigo-100);color:var(--indigo-600)}
.b-amber{background:var(--amber-100);color:#9a6407}
.b-green{background:var(--green-100);color:var(--green-600)}
.b-red{background:var(--red-100);color:var(--red-600)}
.b-blue{background:var(--blue-100);color:var(--blue-600)}
.b-dark{background:var(--navy-900);color:#fff}

/* ── Forms ──────────────────────────────────────────── */
.field{margin-bottom:15px}
.field > label{display:block;font-size:.82rem;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.field .hint{font-size:.76rem;color:var(--ink-4);margin-top:5px}
.input,.select,.textarea{
  width:100%;padding:10px 13px;border:1px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:.92rem;color:var(--ink);background:#fff;transition:.15s;
}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--indigo-500);box-shadow:0 0 0 3px var(--indigo-100)}
.textarea{min-height:96px;resize:vertical;line-height:1.55}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%236b7288' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.check{display:flex;align-items:flex-start;gap:9px;font-size:.88rem;color:var(--ink-2);cursor:pointer;margin-bottom:8px}
.check input{margin-top:3px;accent-color:var(--indigo-600);width:15px;height:15px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 16px}
.form-error{background:var(--red-100);color:var(--red-600);padding:9px 13px;border-radius:9px;font-size:.85rem;font-weight:600;margin-bottom:14px}

/* ── Tables ─────────────────────────────────────────── */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table.tbl{width:100%;border-collapse:collapse;font-size:.88rem;min-width:620px}
table.tbl th{
  text-align:left;padding:11px 14px;background:var(--line-2);color:var(--ink-3);
  font-size:.73rem;text-transform:uppercase;letter-spacing:.06em;font-weight:800;border-bottom:1px solid var(--line);white-space:nowrap
}
table.tbl td{padding:12px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tbody tr:hover{background:#fafbff}
.t-actions{display:flex;gap:5px;justify-content:flex-end;flex-wrap:nowrap}

/* Pin the actions column to the right edge. Admin tables scroll
   horizontally on narrow screens, and the row controls — including
   Delete — were being clipped out of sight. */
table.tbl th:last-child,
table.tbl td:last-child{
  position:sticky;right:0;z-index:2;
  background:var(--surface);
  box-shadow:-8px 0 10px -8px rgba(16,29,38,.22);
}
table.tbl th:last-child{background:var(--line-2)}
table.tbl tbody tr:hover td:last-child{background:#fafbff}

/* ── Empty state ────────────────────────────────────── */
.empty{text-align:center;padding:48px 20px;color:var(--ink-3)}
.empty .e-ico{font-size:38px;margin-bottom:10px;opacity:.55}
.empty h4{color:var(--ink-2)}

/* ── Hero ───────────────────────────────────────────── */
.hero{
  background:
    radial-gradient(900px 420px at 88% -10%, rgba(20,168,173,.32), transparent 60%),
    radial-gradient(700px 380px at 6% 110%, rgba(212,160,23,.20), transparent 60%),
    linear-gradient(160deg,var(--navy-900),var(--navy-700));
  color:#fff;padding:70px 0 78px;position:relative;overflow:hidden;
}
.hero h1{font-size:2.9rem;color:#fff;max-width:15ch}
.hero .lede{font-size:1.08rem;color:#bfd6d8;max-width:52ch}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero-pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.18);padding:6px 14px;border-radius:999px;font-size:.8rem;font-weight:650;margin-bottom:18px;color:#fff}
.hero-stats{display:flex;gap:34px;margin-top:34px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:1.7rem;color:#fff;line-height:1.1}
.hero-stats span{font-size:.8rem;color:#96b6b8}
.hero-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-xl);padding:24px;backdrop-filter:blur(8px)}
.hero-card h4{color:#fff;font-size:.95rem;margin-bottom:14px}
.hero-course{display:flex;gap:12px;align-items:center;padding:11px;border-radius:12px;background:rgba(255,255,255,.07);margin-bottom:9px}
.hero-course .hc-ico{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;font-size:19px;background:rgba(255,255,255,.12);flex:none}
.hero-course b{display:block;font-size:.87rem;color:#fff;line-height:1.35}
.hero-course span{font-size:.75rem;color:#96b6b8}

/* ── Section headings ───────────────────────────────── */
.sec-head{margin-bottom:26px}
.sec-head .eyebrow{color:var(--indigo-600);font-weight:800;font-size:.76rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:6px}
.sec-head h2{margin-bottom:4px}
.sec-head p{color:var(--ink-3);margin:0;max-width:64ch}

/* ── Course cards ───────────────────────────────────── */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(288px,1fr));gap:22px}
.course-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:.18s;box-shadow:var(--sh-1);
}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:#cfd5ee}
.cc-media{height:132px;display:grid;place-items:center;font-size:44px;position:relative;color:#fff}
.cc-tag{position:absolute;top:11px;left:11px;background:rgba(11,20,54,.82);color:#fff;font-size:.7rem;font-weight:700;padding:4px 10px;border-radius:999px;letter-spacing:.02em}
.cc-tag-r{left:auto;right:11px;background:var(--amber-500);color:#2a1c05}
.cc-body{padding:17px;display:flex;flex-direction:column;flex:1}
.cc-body h3{font-size:1.03rem;margin-bottom:6px;line-height:1.35}
.cc-body h3 a{color:var(--ink)}
.cc-meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.79rem;color:var(--ink-3);margin-bottom:10px}
.cc-desc{font-size:.86rem;color:var(--ink-3);margin-bottom:14px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cc-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--line-2);padding-top:13px}
.price{font-size:1.22rem;font-weight:800;color:var(--navy-900)}
.price small{font-size:.78rem;font-weight:600;color:var(--ink-4);text-decoration:line-through;margin-left:6px}

/* ── Book cards ─────────────────────────────────────── */
.book-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:.18s;box-shadow:var(--sh-1);display:flex;flex-direction:column}
.book-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3)}
.bk-cover{height:196px;display:grid;place-items:center;position:relative;padding:16px}
.bk-cover .bk-spine{
  width:112px;height:158px;border-radius:4px 9px 9px 4px;box-shadow:0 10px 24px rgba(16,20,37,.28);
  display:flex;flex-direction:column;justify-content:space-between;padding:12px 11px 12px 15px;color:#fff;position:relative;overflow:hidden
}
.bk-cover .bk-spine:before{content:'';position:absolute;left:0;top:0;bottom:0;width:7px;background:rgba(0,0,0,.22)}
.bk-spine .bs-t{font-size:.7rem;font-weight:800;line-height:1.25}
.bk-spine .bs-a{font-size:.58rem;opacity:.85}
.bk-body{padding:15px;flex:1;display:flex;flex-direction:column}
.bk-body h4{font-size:.95rem;margin-bottom:3px;line-height:1.3}
.stock-ok{color:var(--green-600);font-weight:700;font-size:.76rem}
.stock-low{color:var(--amber-500);font-weight:700;font-size:.76rem}
.stock-out{color:var(--red-600);font-weight:700;font-size:.76rem}

/* ── Stats ──────────────────────────────────────────── */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;box-shadow:var(--sh-1);position:relative;overflow:hidden}
.stat .s-ico{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;font-size:18px;margin-bottom:11px}
.stat b{display:block;font-size:1.72rem;line-height:1.15;letter-spacing:-.02em}
.stat span{font-size:.8rem;color:var(--ink-3);font-weight:600}
.stat .s-delta{font-size:.75rem;font-weight:700;margin-top:6px}
.up{color:var(--green-600)} .down{color:var(--red-600)}

/* ── Progress ───────────────────────────────────────── */
.prog{height:7px;background:var(--line-2);border-radius:99px;overflow:hidden}
.prog > i{display:block;height:100%;background:linear-gradient(90deg,var(--indigo-600),var(--indigo-500));border-radius:99px;transition:width .4s}
.prog.amber > i{background:linear-gradient(90deg,#e08b0c,var(--amber-500))}
.prog.green > i{background:linear-gradient(90deg,#0e7a47,#19b26b)}

/* ── Dashboard layout ───────────────────────────────── */
.dash{display:grid;grid-template-columns:246px 1fr;gap:24px;padding:26px 0;align-items:start}
.side{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:14px;box-shadow:var(--sh-1);position:sticky;top:88px}
.side .s-user{display:flex;gap:11px;align-items:center;padding:8px 8px 14px;border-bottom:1px solid var(--line-2);margin-bottom:10px}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(140deg,var(--indigo-600),var(--navy-800));color:#fff;display:grid;place-items:center;font-weight:800;font-size:.92rem;flex:none}
.avatar.lg{width:64px;height:64px;font-size:1.4rem}
.side .s-user b{display:block;font-size:.9rem;line-height:1.25}
.side .s-user span{font-size:.74rem;color:var(--ink-4)}
.side-group{font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-4);padding:12px 10px 5px}
.side a{
  display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:9px;color:var(--ink-2);
  font-size:.88rem;font-weight:600;text-decoration:none;margin-bottom:2px
}
.side a:hover{background:var(--line-2);text-decoration:none}
.side a.active{background:var(--indigo-100);color:var(--indigo-600)}
.side a .si{width:19px;text-align:center;font-size:.95rem}
.side a .sb{margin-left:auto;background:var(--indigo-600);color:#fff;font-size:.66rem;font-weight:800;padding:1px 7px;border-radius:99px}
.dash-main{min-width:0}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.page-head h2{margin-bottom:2px;font-size:1.5rem}
.page-head p{margin:0;color:var(--ink-3);font-size:.9rem}

/* ── Tabs / filters ─────────────────────────────────── */
.tabs{display:flex;gap:5px;border-bottom:1px solid var(--line);margin-bottom:18px;overflow-x:auto}
.tabs button{
  background:none;border:0;border-bottom:2px solid transparent;padding:9px 14px;font-family:inherit;
  font-size:.88rem;font-weight:650;color:var(--ink-3);cursor:pointer;white-space:nowrap
}
.tabs button.active{color:var(--indigo-600);border-bottom-color:var(--indigo-600)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{background:#fff;border:1px solid var(--line);padding:6px 13px;border-radius:99px;font-size:.83rem;font-weight:650;color:var(--ink-2);cursor:pointer;font-family:inherit}
.chip:hover{border-color:var(--indigo-500)}
.chip.active{background:var(--navy-900);border-color:var(--navy-900);color:#fff}

/* ── Modal ──────────────────────────────────────────── */
.modal-bd{position:fixed;inset:0;background:rgba(11,20,54,.55);z-index:200;display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto;backdrop-filter:blur(2px)}
.modal{background:#fff;border-radius:var(--r-xl);width:100%;max-width:560px;box-shadow:var(--sh-3);animation:pop .18s ease-out}
.modal.wide{max-width:860px}
.modal.narrow{max-width:420px}
@keyframes pop{from{opacity:0;transform:translateY(-10px) scale(.99)}to{opacity:1;transform:none}}
.modal-h{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;border-bottom:1px solid var(--line)}
.modal-h h3{margin:0;font-size:1.1rem}
.modal-b{padding:22px 24px;max-height:66vh;overflow-y:auto}
.modal-f{padding:15px 24px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;background:#fbfcfe;border-radius:0 0 var(--r-xl) var(--r-xl)}
.x-btn{border:0;background:none;font-size:20px;cursor:pointer;color:var(--ink-4);line-height:1;padding:4px 8px}
.x-btn:hover{color:var(--ink)}

/* ── Toast ──────────────────────────────────────────── */
.toast-root{position:fixed;right:18px;bottom:18px;z-index:400;display:flex;flex-direction:column;gap:9px}
.toast{
  background:var(--navy-900);color:#fff;padding:12px 17px;border-radius:12px;font-size:.88rem;font-weight:600;
  box-shadow:var(--sh-3);display:flex;gap:9px;align-items:center;min-width:230px;animation:slideIn .2s
}
.toast.ok{background:var(--green-600)} .toast.err{background:var(--red-600)} .toast.warn{background:#b57708}
@keyframes slideIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}

/* ── Course detail ──────────────────────────────────── */
.cd-hero{background:linear-gradient(160deg,var(--navy-900),var(--navy-700));color:#fff;padding:38px 0}
.cd-hero h1{color:#fff;font-size:2.05rem}
.cd-hero .cd-meta{display:flex;flex-wrap:wrap;gap:8px 20px;color:#a9c7c9;font-size:.88rem;margin-top:12px}
.cd-grid{display:grid;grid-template-columns:1fr 348px;gap:30px;align-items:start;padding:30px 0 50px}
.buy-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);position:sticky;top:88px;overflow:hidden}
.buy-box .bb-top{height:130px;display:grid;place-items:center;font-size:48px;color:#fff}
.bb-body{padding:20px}

/* ── Curriculum accordion ───────────────────────────── */
.acc{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.acc-item{border-bottom:1px solid var(--line-2)}
.acc-item:last-child{border-bottom:0}
.acc-h{width:100%;display:flex;align-items:center;gap:11px;padding:13px 16px;background:#fbfcfe;border:0;cursor:pointer;font-family:inherit;font-size:.92rem;font-weight:700;color:var(--ink);text-align:left}
.acc-h:hover{background:#f4f6fc}
.acc-h .ah-c{margin-left:auto;font-size:.78rem;color:var(--ink-4);font-weight:600}
.acc-b{padding:4px 16px 12px;display:none}
.acc-item.open .acc-b{display:block}
.acc-item.open .acc-h .caret{transform:rotate(90deg)}
.caret{transition:.15s;display:inline-block;color:var(--ink-4)}
.lesson{display:flex;align-items:center;gap:10px;padding:8px 4px;font-size:.87rem;color:var(--ink-2);border-bottom:1px dashed var(--line-2)}
.lesson:last-child{border-bottom:0}
.lesson .l-ico{color:var(--ink-4);width:18px;text-align:center}
.lesson .l-dur{margin-left:auto;font-size:.78rem;color:var(--ink-4)}

/* ── Player ─────────────────────────────────────────── */
.player-grid{display:grid;grid-template-columns:1fr 330px;gap:22px;align-items:start}
.stage{background:#0b1436;border-radius:var(--r-lg);aspect-ratio:16/9;display:grid;place-items:center;color:#fff;text-align:center;padding:24px;overflow:hidden}
.stage iframe,.stage video{width:100%;height:100%;border:0;border-radius:var(--r-lg)}
.pl-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);max-height:74vh;overflow-y:auto}
.pl-mod{padding:11px 15px;background:var(--line-2);font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);position:sticky;top:0}
.pl-item{display:flex;gap:10px;align-items:center;padding:11px 15px;border-bottom:1px solid var(--line-2);cursor:pointer;font-size:.86rem}
.pl-item:hover{background:#fafbff}
.pl-item.active{background:var(--indigo-100);border-left:3px solid var(--indigo-600);padding-left:12px}
.pl-item.done .pl-t{color:var(--ink-4)}
.pl-check{width:19px;height:19px;border-radius:50%;border:2px solid var(--line);flex:none;display:grid;place-items:center;font-size:10px;color:#fff}
.pl-check.on{background:var(--green-600);border-color:var(--green-600)}

/* ── Certificate ────────────────────────────────────── */
.cert{
  background:linear-gradient(150deg,#fffdf7,#fff);border:10px double var(--amber-500);border-radius:6px;
  padding:38px;text-align:center;position:relative;max-width:720px;margin:0 auto
}
.cert h2{font-size:1.9rem;color:var(--navy-900);letter-spacing:.04em}
.cert .c-name{font-size:2rem;font-weight:800;color:var(--indigo-600);margin:14px 0;border-bottom:2px solid var(--line);display:inline-block;padding:0 26px 6px}
.cert .c-sig{display:flex;justify-content:space-between;margin-top:38px;font-size:.8rem;color:var(--ink-3)}
.cert .c-sig div{border-top:1px solid var(--ink-4);padding-top:6px;width:180px}

/* ── Timeline / schedule ────────────────────────────── */
.tl{position:relative;padding-left:26px}
.tl:before{content:'';position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-bottom:20px}
.tl-item:before{content:'';position:absolute;left:-23px;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--indigo-600)}
.tl-item.done:before{background:var(--green-600);border-color:var(--green-600)}
.tl-item .tl-d{font-size:.76rem;font-weight:700;color:var(--indigo-600);text-transform:uppercase;letter-spacing:.05em}

/* ── Charts (pure CSS/SVG) ──────────────────────────── */
.bars{display:flex;align-items:flex-end;gap:10px;height:170px;padding-top:10px}
.bars .bar{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:7px;height:100%}
.bars .bar i{width:100%;max-width:42px;background:linear-gradient(180deg,var(--indigo-500),var(--indigo-600));border-radius:7px 7px 3px 3px;min-height:3px;transition:height .5s;position:relative}
.bars .bar i:hover{background:var(--amber-500)}
.bars .bar span{font-size:.72rem;color:var(--ink-4);font-weight:600}
.bars .bar b{font-size:.72rem;color:var(--ink-2)}
.donut-wrap{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.legend{display:flex;flex-direction:column;gap:7px;font-size:.84rem}
.legend i{width:11px;height:11px;border-radius:3px;display:inline-block;margin-right:8px}

/* ── Cart / checkout ────────────────────────────────── */
.cart-row{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid var(--line-2);align-items:center}
.cart-row .cr-ico{width:66px;height:66px;border-radius:12px;display:grid;place-items:center;font-size:26px;color:#fff;flex:none}
.sum-line{display:flex;justify-content:space-between;font-size:.9rem;padding:7px 0;color:var(--ink-2)}
.sum-line.total{border-top:1px solid var(--line);margin-top:8px;padding-top:13px;font-size:1.15rem;font-weight:800;color:var(--navy-900)}
.rzp-note{background:var(--blue-100);color:#12508f;font-size:.8rem;padding:10px 13px;border-radius:10px;line-height:1.5}

/* ── Auth pages ─────────────────────────────────────── */
.auth-wrap{max-width:440px;margin:44px auto 70px}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh-2)}
.auth-card h2{font-size:1.5rem;margin-bottom:4px}
.auth-switch{text-align:center;margin-top:18px;font-size:.88rem;color:var(--ink-3)}
.demo-box{background:var(--amber-100);border:1px dashed #e8b962;border-radius:11px;padding:12px 14px;font-size:.8rem;color:#7a4f05;margin-bottom:18px;line-height:1.6}

/* ── Footer ─────────────────────────────────────────── */
.site-footer{background:var(--navy-900);color:#9db9bb;padding:48px 0 0;margin-top:60px}
.ft-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:34px;padding-bottom:34px}
.site-footer h5{color:#fff;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.site-footer a{color:#9db9bb;display:block;padding:4px 0;font-size:.88rem}
.site-footer a:hover{color:#fff}
.ft-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;font-size:.82rem;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
.ft-admin{
  display:inline-flex !important;align-items:center;gap:6px;padding:5px 13px;border-radius:99px;
  border:1px solid rgba(212,160,23,.45);color:var(--amber-500) !important;font-weight:700;
  font-size:.78rem;white-space:nowrap;transition:.15s;
}
.ft-admin:hover{background:var(--amber-500);border-color:var(--amber-500);color:#2a1c05 !important;text-decoration:none}

/* ── Misc ───────────────────────────────────────────── */
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 14px;font-size:.9rem}
.kv dt{color:var(--ink-3);font-weight:600}
.kv dd{margin:0;color:var(--ink)}
.pill-row{display:flex;flex-wrap:wrap;gap:7px}
.tick-list{list-style:none;padding:0;margin:0}
.tick-list li{padding:6px 0 6px 27px;position:relative;font-size:.9rem;color:var(--ink-2)}
.tick-list li:before{content:'✓';position:absolute;left:0;top:6px;color:var(--green-600);font-weight:800}
.crumbs{font-size:.83rem;color:var(--ink-4);margin-bottom:14px}
.crumbs a{color:var(--ink-3)}
.searchbar{position:relative;flex:1;min-width:210px}
.searchbar .input{padding-left:36px}
.searchbar:before{content:'🔍';position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;opacity:.55}
.upl{border:2px dashed var(--line);border-radius:12px;padding:20px;text-align:center;color:var(--ink-3);font-size:.86rem;background:#fbfcfe;cursor:pointer}
.upl:hover{border-color:var(--indigo-500);background:var(--indigo-100)}
.lesson-edit{display:grid;grid-template-columns:1fr 110px 100px 60px 34px;gap:8px;align-items:center;margin-bottom:8px}
.mod-edit{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:12px;background:#fbfcfe}

@media print{
  .site-header,.site-footer,.topbar,.side,.no-print{display:none !important}
  body{background:#fff}
  .dash{grid-template-columns:1fr}
}

/* ── Responsive ─────────────────────────────────────────
   Four bands: large desktop, small laptop / landscape tablet,
   portrait tablet, phone. Tested at 1440, 1024, 820 and 390.
   ────────────────────────────────────────────────────── */

/* Landscape tablet / small laptop */
@media(max-width:1100px){
  .cd-grid{grid-template-columns:1fr 300px;gap:22px}
  .dash{grid-template-columns:210px 1fr;gap:18px}
  .ft-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
  .ft-grid > div:last-child{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:20px}
}

/* Portrait tablet */
@media(max-width:900px){
  .hero{padding:52px 0 58px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:2.4rem;max-width:none}
  .hero .lede{max-width:none}
  .cd-grid{grid-template-columns:1fr;padding-top:24px}
  .buy-box{position:static;max-width:520px}
  .player-grid{grid-template-columns:1fr}
  .pl-list{max-height:420px}
  .dash{grid-template-columns:1fr;padding:18px 0}
  .side{position:static;display:flex;flex-wrap:wrap;gap:4px;align-items:center;padding:12px}
  .side .s-user{width:100%;border-bottom:1px solid var(--line-2);margin-bottom:6px}
  .side a{margin-bottom:0;padding:8px 12px;font-size:.85rem}
  .side .side-group{width:100%;padding:8px 6px 2px}
  .side hr{width:100%}
  .cards{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
  .stat-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
}

/* Phone */
@media(max-width:720px){
  body{font-size:15px}
  h1{font-size:1.85rem} h2{font-size:1.45rem}
  .hero{padding:40px 0 46px}
  .hero h1{font-size:2rem}
  .hero .lede{font-size:1rem}
  .hero-stats{gap:20px 26px;margin-top:26px}
  .hero-stats b{font-size:1.4rem}
  .nav{height:60px;gap:12px}
  .nav-links{display:none}
  .nav-links.open{
    display:flex;position:absolute;top:60px;left:0;right:0;background:#fff;
    flex-direction:column;padding:10px;border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);gap:2px;max-height:calc(100vh - 60px);overflow-y:auto
  }
  .nav-links.open a{padding:12px 14px;font-size:.95rem}
  .burger{display:block}
  .topbar .tb-links{display:none}
  .topbar .wrap{justify-content:center;font-size:.75rem}
  .brand-word{font-size:1rem}
  .brand-sub{display:none}
  .nav-right{gap:6px}
  .nav-right .btn{padding:8px 12px;font-size:.84rem}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .ft-grid{grid-template-columns:1fr;gap:22px}
  .ft-grid > div:last-child{grid-column:auto}
  .section{padding:34px 0}
  .section-sm{padding:22px 0}
  .lesson-edit{grid-template-columns:1fr;gap:6px}
  .cards{grid-template-columns:1fr;gap:16px}
  .card-p,.panel{padding:16px}
  .kv{grid-template-columns:1fr;gap:2px 0}
  .kv dt{margin-top:8px}
  .page-head{gap:10px}
  .page-head h2{font-size:1.3rem}
  .cert{padding:22px 16px;border-width:6px}
  .cert h2{font-size:1.35rem}
  .cert .c-name{font-size:1.4rem;padding:0 10px 5px}
  .cert .c-sig{flex-direction:column;gap:18px;align-items:center;text-align:center}
  .cert .c-sig div{width:auto;min-width:170px}
  .modal-bd{padding:12px}
  .modal-b{max-height:70vh;padding:18px}
  .modal-h,.modal-f{padding:14px 18px}
  .modal-f{flex-direction:column-reverse}
  .modal-f .btn{width:100%}
  .tabs{gap:0}
  .chips{gap:6px}
  .chip{padding:6px 11px;font-size:.8rem}
  .brand-chip{padding:11px 14px}
  /* stop iOS zooming the page when a field is focused */
  .input,.select,.textarea{font-size:16px}
  .toast-root{left:12px;right:12px;bottom:12px}
  .toast{min-width:0}
  .bars{height:140px;gap:6px}
  .donut-wrap{gap:14px}
  .table-wrap{ -webkit-overflow-scrolling:touch }
  .cart-row{flex-wrap:wrap}
  .cart-row .cr-ico{width:48px;height:48px;font-size:20px}
  .buy-box{max-width:none}
}

/* Small phone */
@media(max-width:400px){
  .wrap{padding:0 14px}
  .hero h1{font-size:1.75rem}
  .btn-lg{padding:12px 18px;font-size:.94rem}
  .flex.gap-12.wrapf > .btn{width:100%}
  .hero-stats{gap:16px 20px}
  .price{font-size:1.1rem}
}

/* Anything with a coarse pointer gets larger tap targets */
@media(pointer:coarse){
  .icon-btn{width:38px;height:38px}
  .btn-sm{padding:9px 14px}
  .side a{padding:11px 12px}
  .pl-item{padding:14px 15px}
}