/* ==========================================================================
   Ascend IELTS — 30-Day Planner
   Shared design system & component library
   Plain CSS. No frameworks. Theming via CSS custom properties.
   ========================================================================== */

/* ------------------------------------------------------------------ Tokens */
:root {
  /* Brand palette — premium IELTS-style red / white / black */
  --red-500:#EF233C; --red-600:#E30613; --red-700:#B00020; --red-50:#FEF2F2;
  /* Legacy palette names kept so old references never break */
  --indigo-50:var(--red-50); --indigo-100:#FEE2E2; --indigo-200:#FECACA;
  --indigo-300:#FCA5A5; --indigo-400:#F87171; --indigo-500:var(--red-500);
  --indigo-600:var(--red-600); --indigo-700:var(--red-700); --indigo-800:#8E001A;
  --teal-400:#2dd4bf; --teal-500:#14b8a6; --teal-600:#0d9488;
  --amber-400:#fbbf24; --amber-500:#f59e0b;
  --rose-500:#f43f5e; --green-500:#22c55e; --green-600:#16a34a;

  /* Neutrals (premium neutral gray, near-black headlines) */
  --ink-900:#0B0F19; --ink-800:#111827; --ink-700:#374151;
  --ink-600:#4B5563; --ink-500:#6B7280; --ink-400:#9CA3AF;
  --ink-300:#D1D5DB; --ink-200:#E5E7EB; --ink-100:#F3F4F6; --ink-50:#F9FAFB;
  --white:#ffffff;

  /* Semantic */
  --brand:var(--red-600);
  --brand-strong:var(--red-700);
  --brand-soft:var(--red-50);
  --accent:var(--red-600);
  --bg:#FAFAFA;
  --surface:var(--white);
  --surface-2:#F9FAFB;
  --line:#E5E7EB;
  --text:var(--ink-800);
  --muted:var(--ink-500);
  --border:var(--ink-200);

  /* Type */
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;

  /* Radius & shadow */
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-full:999px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow-md:0 6px 20px rgba(15,23,42,.08);
  --shadow-lg:0 18px 50px rgba(15,23,42,.14);

  /* Layout */
  --sidebar-w:260px;
  --maxw:1180px;
}

/* ----------------------------------------------------------------- Reset */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:clip}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
h1,h2,h3,h4{line-height:1.2;color:var(--ink-900);font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2rem,4vw,3.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.25rem}
p{color:var(--ink-600)}
.muted{color:var(--muted)}
.center{text-align:center}

/* --------------------------------------------------------------- Helpers */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-sm{padding:48px 0}
.grid{display:grid;gap:24px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.flex{display:flex}
.between{justify-content:space-between}
.items-center{align-items:center}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}
.eyebrow{
  display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}

/* --------------------------------------------------------------- Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:.95rem;padding:11px 20px;border-radius:10px;
  transition:transform .15s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-strong)}
.btn-ghost{background:var(--white);color:var(--ink-800);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--ink-300);background:var(--ink-50)}
.btn-accent{background:var(--brand);color:#fff}
.btn-accent:hover{background:var(--brand-strong);color:#fff}
.btn-block{width:100%}
.btn-lg{padding:15px 30px;font-size:1.02rem}
.btn-sm{padding:8px 16px;font-size:.85rem}

/* ----------------------------------------------------------------- Cards */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:24px;box-shadow:var(--shadow-sm);
}
.card-hover{transition:transform .2s ease,box-shadow .2s ease}
.card-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.card--featured{border-color:var(--brand);background:linear-gradient(0deg,rgba(227,6,19,.04),rgba(227,6,19,.04)),var(--surface)}
.card-pad-sm{padding:18px}
.card-icon{
  width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:1.4rem;margin-bottom:16px;
}

/* ---------------------------------------------------------------- Badges */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:.74rem;font-weight:700;
  padding:5px 12px;border-radius:var(--r-full);letter-spacing:.02em;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-strong)}
.badge-teal{background:#e0fbf6;color:var(--teal-600)}
.badge-amber{background:#fef3c7;color:#b45309}
.badge-rose{background:#ffe4e6;color:#be123c}
.badge-green{background:#dcfce7;color:#15803d}
.badge-gray{background:var(--ink-100);color:var(--ink-600)}
.skill-dot{width:8px;height:8px;border-radius:50%}

/* -------------------------------------------------------- Progress bars */
.progress{height:8px;background:var(--ink-100);border-radius:var(--r-full);overflow:hidden}
.progress > span{
  display:block;height:100%;border-radius:var(--r-full);
  background:var(--brand);
  transition:width .6s ease;
}
.progress-lg{height:10px}
.ring{position:relative;width:120px;height:120px}
.ring svg{transform:rotate(-90deg)}
.ring-label{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring-label b{font-size:1.6rem;color:var(--ink-900)}

/* ----------------------------------------------------------------- Tabs */
.tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--border);margin-bottom:24px}
.tab-btn{
  padding:11px 18px;font-weight:600;color:var(--muted);border-radius:10px 10px 0 0;
  border-bottom:2px solid transparent;transition:.15s;
}
.tab-btn:hover{color:var(--ink-800)}
.tab-btn.active{color:var(--brand);border-bottom-color:var(--brand)}
.tab-panel{display:none;animation:fade .25s ease}
.tab-panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ------------------------------------------------------------- Checklist */
.checklist{display:flex;flex-direction:column;gap:10px}
.check-item{
  display:flex;align-items:flex-start;gap:12px;padding:14px 16px;
  background:var(--white);border:1px solid var(--border);border-radius:var(--r-md);
  cursor:pointer;transition:.15s;
}
.check-item:hover{border-color:var(--indigo-300);background:var(--indigo-50)}
.check-item input{appearance:none;width:22px;height:22px;border:2px solid var(--ink-300);
  border-radius:7px;flex:0 0 auto;margin-top:2px;position:relative;transition:.15s}
.check-item input:checked{background:var(--brand);border-color:var(--brand)}
.check-item input:checked::after{
  content:"";position:absolute;left:6px;top:2px;width:6px;height:11px;
  border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg);
}
.check-item.done .check-text{text-decoration:line-through;color:var(--ink-400)}
.check-text{font-weight:500;color:var(--ink-700)}
.check-text small{display:block;font-weight:400;color:var(--muted);text-decoration:none}

/* -------------------------------------------------------------- Top nav */
.topnav{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--border);
}
.topnav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--ink-900)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:#fff;font-weight:700;
  background:var(--brand);
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-weight:500;color:var(--ink-600);font-size:.95rem;transition:.15s}
.nav-links a:hover{color:var(--brand)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;font-size:1.5rem;color:var(--ink-800)}

/* -------------------------------------------------------------- Sidebar */
.app{display:flex;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:var(--ink-900);
  color:#cbd5e1;padding:22px 16px;position:sticky;top:0;height:100vh;
  display:flex;flex-direction:column;overflow-y:auto;
}
.sidebar .brand{color:#fff;padding:6px 8px 22px;font-size:1.1rem}
.side-section{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:#64748b;
  padding:18px 12px 8px;font-weight:700}
.side-link{
  display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;
  color:#cbd5e1;font-weight:500;font-size:.92rem;transition:.15s;min-height:44px;
}
.side-link:hover{background:rgba(255,255,255,.07);color:#fff}
.side-link.active{background:var(--brand);color:#fff}
.side-link .ic{width:20px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.side-link .ic svg{display:block}
.side-foot{margin-top:auto;padding:14px 12px}
.side-card{background:rgba(255,255,255,.06);border-radius:14px;padding:14px}
.side-card b{color:#fff}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.appbar{
  height:64px;background:var(--white);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 28px;
  position:sticky;top:0;z-index:40;
}
.appbar h1{font-size:1.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.appbar .flex{min-width:0}
.content{padding:28px;max-width:1140px;width:100%;margin:0 auto}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:#fff;
  background:var(--brand);
}
.sidebar-toggle{display:none}

/* ------------------------------------------------------------- Stat card */
.stat{display:flex;flex-direction:column;gap:6px}
.stat .num{font-size:1.9rem;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums}
.stat .lbl{font-size:.85rem;color:var(--muted)}
.stat-row{display:flex;align-items:center;gap:14px}
.stat-ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:1.3rem}
.stat-ic svg{display:block}

/* --------------------------------------------------------------- Streak */
.streak{display:flex;gap:8px;flex-wrap:wrap}
.streak .day{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  font-size:.78rem;font-weight:700;background:var(--ink-100);color:var(--ink-400)}
.streak .day.on{background:var(--amber-400);color:#7c2d12}
.streak .day.today{outline:2px solid var(--brand);outline-offset:2px}

/* ------------------------------------------------------------- Accordion */
.acc-item{background:var(--white);border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden}
.acc-head{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;cursor:pointer;font-weight:600;color:var(--ink-800)}
.acc-head:hover{background:var(--ink-50)}
.acc-arrow{transition:transform .2s ease;color:var(--muted)}
.acc-item.open .acc-arrow{transform:rotate(90deg)}
.acc-body{display:none;padding:0 20px 20px}
.acc-item.open .acc-body{display:block}

/* --------------------------------------------------------------- Tables */
.tbl{width:100%;border-collapse:collapse;font-size:.92rem}
.tbl th{text-align:left;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--muted);padding:12px 14px;border-bottom:1px solid var(--border)}
.tbl td{padding:13px 14px;border-bottom:1px solid var(--ink-100);color:var(--ink-700)}
.tbl tr:hover td{background:var(--ink-50)}

/* --------------------------------------------------------------- Inputs */
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.88rem;margin-bottom:7px;color:var(--ink-700)}
.input,select.input,textarea.input{
  width:100%;padding:13px 15px;border:1px solid var(--border);border-radius:var(--r-md);
  font-family:inherit;font-size:.95rem;color:var(--ink-800);background:var(--white);transition:.15s;
}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.input-row{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--muted)}
.divider{display:flex;align-items:center;gap:14px;color:var(--ink-400);font-size:.85rem;margin:22px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--border)}

/* --------------------------------------------------------------- Footer */
.footer{background:var(--ink-900);color:#94a3b8;padding:60px 0 30px}
.footer h4{color:#fff;font-size:.95rem;margin-bottom:16px}
.footer a{display:block;color:#94a3b8;padding:5px 0;font-size:.9rem;transition:.15s}
.footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1e293b;margin-top:40px;padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem}

/* --------------------------------------------------------- Page header */
.page-head{margin-bottom:28px}
.page-head h1{margin-bottom:6px}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:10px}
.crumbs a:hover{color:var(--brand)}

/* ------------------------------------------------------------- Misc UI */
.pill-row{display:flex;gap:8px;flex-wrap:wrap}
.note{border-left:3px solid var(--brand);background:var(--brand-soft);padding:14px 18px;
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-700)}
.note-amber{border-color:var(--amber-500);background:#fffbeb}
.note-rose{border-color:var(--rose-500);background:#fff1f2}
.kbd{background:var(--ink-100);border:1px solid var(--border);border-radius:6px;padding:2px 7px;
  font-size:.8rem;font-weight:600;color:var(--ink-600)}
.list-clean li{padding:8px 0 8px 28px;position:relative;color:var(--ink-700)}
.list-clean li::before{content:"✓";position:absolute;left:0;color:var(--green-600);font-weight:700}
.list-num{counter-reset:n}
.list-num li{padding:10px 0 10px 42px;position:relative;color:var(--ink-700)}
.list-num li::before{counter-increment:n;content:counter(n);position:absolute;left:0;top:8px;
  width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand-strong);
  font-weight:700;font-size:.85rem;display:grid;place-items:center}

/* ------------------------------------------------------------- Hero bg */
.hero{position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--brand-soft) 0%,var(--bg) 55%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;
  padding:70px 0 90px}
.float-card{position:absolute;background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:14px 16px}

/* --------------------------------------------------------- Responsive */
@media (max-width:980px){
  .cols-4{grid-template-columns:repeat(2,1fr)}
  .cols-3{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 60px}
}
@media (max-width:760px){
  .nav-links{
    position:fixed;inset:70px 0 auto 0;flex-direction:column;background:#fff;
    padding:18px 24px;gap:16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);
    display:none;align-items:flex-start;
  }
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .cols-2,.cols-3,.cols-4{grid-template-columns:1fr}   /* content cards stack 1-col on phone */
  .stats-2x2{grid-template-columns:repeat(2,1fr)}      /* small stat tiles stay 2×2 */
  .section{padding:56px 0}

  /* Hero: centered, intentional spacing on phones */
  .hero-grid{text-align:center;padding:40px 0 48px;gap:24px}
  .hero-grid p{margin-inline:auto}
  .hero-grid .flex{justify-content:center}
  .hero-grid .stat{align-items:center}
  .float-card{display:none}                             /* was overflowing the viewport */

  /* Wide tables scroll inside themselves, never the page */
  .tbl{display:block;overflow-x:auto}

  /* App: collapsible off-canvas sidebar */
  .sidebar{position:fixed;left:0;top:0;z-index:60;transform:translateX(-100%);
    transition:transform .25s ease;box-shadow:var(--shadow-lg)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-toggle{display:inline-grid;place-items:center;font-size:1.5rem;color:var(--ink-800);
    min-width:44px;min-height:44px}
  .task-row{min-height:44px}
  .task-status select{min-height:44px}
  .check-item input{width:24px;height:24px}
  .scrim{display:none;position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:55}
  .scrim.show{display:block}
  .content{padding:18px}
  .appbar{padding:0 16px}
}
@media print{.sidebar,.appbar,.topnav,.footer{display:none}}

/* ==========================================================================
   V1 visual refresh additions (D-01…D-12)
   ========================================================================== */

/* Tabular numerals for stats, band scores, prices, day counters */
.tnum{font-variant-numeric:tabular-nums}

/* Canonical alert — 4 intents. Replaces ad-hoc .note/.disclaimer/.error-box uses. */
.alert{border-left:3px solid var(--brand);background:var(--brand-soft);
  border-radius:10px;padding:14px;color:var(--ink-700);font-size:.92rem}
.alert b{color:var(--ink-800)}
.alert-info{border-left-color:var(--brand);background:var(--brand-soft)}
.alert-success{border-left-color:var(--green-600);background:#f0fdf4}
.alert-warning{border-left-color:var(--amber-500);background:#fffbeb}
.alert-danger{border-left-color:var(--rose-500);background:#fff1f2}

/* Canonical empty state */
.empty-state{text-align:center;padding:40px 0;color:var(--muted)}
.empty-state .es-ic{display:inline-flex;color:var(--ink-400);margin-bottom:12px}
.empty-state .es-ic svg{width:40px;height:40px}
.empty-state h3,.empty-state .es-title{font-size:1rem;font-weight:600;color:var(--ink-800);margin:0 0 4px}
.empty-state p{margin:0;font-size:.9rem;color:var(--muted)}
.empty-state .btn{margin-top:16px}

/* Skeleton loading (writing checker) */
.skeleton-line{height:12px;border-radius:6px;background:var(--ink-100);
  position:relative;overflow:hidden;margin:12px 0}
.skeleton-line::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.7),transparent);
  animation:shimmer 1.4s infinite}
@keyframes shimmer{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* Price / hero numbers */
.price{font-size:1.6rem;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* Inline highlight chip (payment copy) */
.hl{display:inline-block;background:var(--brand-soft);color:var(--brand-strong);border:1px solid rgba(227,6,19,.25);
  border-radius:6px;padding:2px 8px;font-weight:700}
.hl-strong{color:var(--brand-strong);font-weight:700}

/* Copy field (bank details) — label + mono value box */
.copy-field{margin-bottom:14px}
.copy-field .cf-label{font-size:.82rem;color:var(--muted);margin-bottom:6px;display:block;font-weight:600}
.copy-field .cf-value{display:block;background:var(--ink-50);border:1px solid var(--ink-300);
  border-radius:8px;padding:10px 12px;font-weight:700;color:var(--ink-900);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;word-break:break-all;font-size:.92rem}
.copy-field .cf-value + .cf-value{margin-top:8px}

/* Feature list with check icons (payment plan cards) */
.check-list{list-style:none;padding:0;margin:0}
.check-list li{display:flex;gap:10px;align-items:flex-start;padding:5px 0;
  color:var(--ink-700);font-size:.92rem;line-height:1.6}
.check-list li svg{flex:0 0 auto;margin-top:3px;color:var(--green-600)}

/* Icon inside ghost/quick-link buttons */
.btn svg{flex:0 0 auto}

/* Dark CTA section (replaces gradient cta-band) */
.cta-dark{background:var(--ink-900);border-radius:16px;padding:44px;text-align:center;color:#fff}
.cta-dark h2{color:#fff;margin-bottom:10px}
.cta-dark p{color:#cbd5e1;max-width:620px;margin:0 auto 22px}

/* ==========================================================================
   Auth pages — mobile-first single column, premium split on desktop
   ========================================================================== */
.auth{display:grid;grid-template-columns:1fr;min-height:100vh;min-height:100dvh;background:var(--bg)}
.auth-aside{
  background:#0B0F19;color:#fff;padding:16px 20px;
  display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:12px;
}
.auth-aside .brand{color:#fff}
.auth-aside-body,.auth-aside-foot{display:none}
.auth-aside-body h1{color:#fff}
.auth-aside-body p{color:#D1D5DB;font-size:1.05rem;margin-top:12px}
.auth-aside-foot{color:#94A3B8;font-size:.85rem}
.auth-form-wrap{display:grid;justify-items:center;align-content:start;padding:28px 20px 56px;overflow-x:hidden}
.auth-card{width:100%;max-width:420px}
@media (min-width:900px){
  .auth{grid-template-columns:1fr 1fr}
  .auth-aside{flex-direction:column;align-items:flex-start;justify-content:space-between;padding:56px}
  .auth-aside-body,.auth-aside-foot{display:block}
  .auth-form-wrap{align-content:center;padding:40px}
}

/* ==========================================================================
   Admin panel — user card details + mobile controls
   ========================================================================== */
.admin-details{margin-top:12px;border-top:1px solid var(--border);padding-top:12px}
.admin-details-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px 16px}
.admin-field .af-label{display:block;font-size:.72rem;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.admin-field .af-value{font-size:.88rem;color:var(--ink-800);word-break:break-all}
.admin-field .af-value.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.8rem}
.admin-controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:14px}
@media (max-width:640px){
  .admin-controls{flex-direction:column;align-items:stretch}
  .admin-controls .input,.admin-controls .btn,.admin-controls select{width:100%!important;min-width:0!important}
  .admin-controls .admin-sep{display:none}
}

/* ==========================================================================
   Generic two-column split that stacks on mobile (profile, mock tests, …)
   ========================================================================== */
.split-grid{display:grid;gap:24px;grid-template-columns:1.3fr 1fr}
.split-grid--rev{grid-template-columns:1fr 1.2fr}
.split-grid>div{min-width:0}
@media (max-width:820px){
  .split-grid,.split-grid--rev{grid-template-columns:1fr;gap:16px}
}
/* On phones, big CTA buttons inside cards go full-width instead of hugging a corner */
@media (max-width:640px){
  .card .btn-lg{width:100%}
  .card .flex.between{row-gap:12px}
}

/* ==========================================================================
   Landing pricing — expandable feature lists on mobile (CSS-only toggle)
   ========================================================================== */
.plan-toggle{display:none}
.plan-features-label{display:none}
@media (max-width:760px){
  #pricing .card{padding:20px 18px}
  #pricing .card h3{font-size:1.1rem}
  #pricing .list-clean li{font-size:.9rem;padding:6px 0 6px 26px}
  .plan-features-label{
    display:inline-flex;align-items:center;gap:6px;margin-top:12px;cursor:pointer;
    font-weight:600;font-size:.88rem;color:var(--brand);user-select:none;
  }
  .plan-toggle:not(:checked) ~ .plan-features{display:none}
  .plan-toggle:checked + .plan-features-label{opacity:.7}
}

/* ==========================================================================
   Theme toggle
   ========================================================================== */
.theme-toggle{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.85rem;
  padding:8px 12px;border-radius:10px;border:1px solid var(--border);cursor:pointer;
  background:var(--surface);color:var(--ink-700);transition:.15s;font-family:inherit;
}
.theme-toggle:hover{border-color:var(--ink-300)}
.sidebar .theme-toggle{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:#cbd5e1;width:100%;justify-content:center}
.sidebar .theme-toggle:hover{background:rgba(255,255,255,.1);color:#fff}

/* ==========================================================================
   Dark theme — token overrides + surface fixes
   ========================================================================== */
[data-theme="dark"]{
  --bg:#07090F;
  --surface:#151922;
  --surface-2:#1A2030;
  --white:#151922;               /* legacy surface references */
  --line:rgba(255,255,255,.10);
  --border:rgba(255,255,255,.10);
  --text:#E5E7EB;
  --muted:#94A3B8;
  --brand:#EF233C;
  --brand-strong:#D90429;
  --brand-soft:rgba(227,6,19,.12);
  /* Inverted neutral scale: 900 = strongest text, 50 = faintest surface */
  --ink-900:#F9FAFB; --ink-800:#F3F4F6; --ink-700:#D1D5DB;
  --ink-600:#B3BAC7; --ink-500:#94A3B8; --ink-400:#6B7280;
  --ink-300:#3A4150; --ink-200:#262D3B; --ink-100:#1D2330; --ink-50:#151A26;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow-md:0 6px 20px rgba(0,0,0,.45);
  --shadow-lg:0 18px 50px rgba(0,0,0,.6);
  color-scheme:dark;
}
/* Fixed-dark surfaces that must stay dark (they use ink-900 as background) */
[data-theme="dark"] .sidebar{background:#0B0F19}
[data-theme="dark"] .footer{background:#0B0F19}
[data-theme="dark"] .cta-band,[data-theme="dark"] .cta-dark{background:#151922;border:1px solid var(--border)}
[data-theme="dark"] .topnav,[data-theme="dark"] .topbar{background:rgba(11,15,25,.85)}
[data-theme="dark"] .nav-links{background:#0B0F19}
[data-theme="dark"] .float-card{background:var(--surface)}
[data-theme="dark"] .auth-aside{background:#07090F;border-right:1px solid var(--border)}
[data-theme="dark"] .hero{background:linear-gradient(180deg,rgba(227,6,19,.10) 0%,var(--bg) 55%)}
[data-theme="dark"] .bl-dot,[data-theme="dark"] .tl-dot{background:var(--surface)}
[data-theme="dark"] .skeleton-line::after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.07),transparent)}
[data-theme="dark"] .card--featured{background:linear-gradient(0deg,rgba(227,6,19,.09),rgba(227,6,19,.09)),var(--surface)}
/* Light pastel chips → dark tints */
[data-theme="dark"] .badge-brand{background:rgba(227,6,19,.16);color:#FCA5A5}
[data-theme="dark"] .badge-teal{background:rgba(20,184,166,.15);color:#5EEAD4}
[data-theme="dark"] .badge-amber{background:rgba(245,158,11,.15);color:#FCD34D}
[data-theme="dark"] .badge-rose{background:rgba(244,63,94,.16);color:#FDA4AF}
[data-theme="dark"] .badge-green{background:rgba(34,197,94,.15);color:#86EFAC}
[data-theme="dark"] .alert-success{background:rgba(34,197,94,.10)}
[data-theme="dark"] .alert-warning{background:rgba(245,158,11,.10)}
[data-theme="dark"] .alert-danger{background:rgba(244,63,94,.10)}
[data-theme="dark"] .note-amber{background:rgba(245,158,11,.10)}
[data-theme="dark"] .note-rose{background:rgba(244,63,94,.10)}
[data-theme="dark"] .disclaimer{background:rgba(245,158,11,.10)}
[data-theme="dark"] .error-box{background:rgba(244,63,94,.10);color:#FDA4AF}
[data-theme="dark"] .hl{background:rgba(227,6,19,.14);color:#FCA5A5;border-color:rgba(239,35,60,.35)}
[data-theme="dark"] .hl-strong{color:#FCA5A5}
[data-theme="dark"] .correction .before{background:rgba(244,63,94,.10)}
[data-theme="dark"] .correction .after{background:rgba(34,197,94,.10)}
[data-theme="dark"] .rewrite-col.before .body{background:rgba(244,63,94,.10)}
[data-theme="dark"] .rewrite-col.after .body{background:rgba(34,197,94,.10)}
[data-theme="dark"] .ai-rewrite{background:rgba(34,197,94,.10);border-color:rgba(34,197,94,.25)}
[data-theme="dark"] .ex-explain{background:rgba(245,158,11,.10);border-color:rgba(245,158,11,.25);color:#FCD34D}
[data-theme="dark"] .ex-error{background:rgba(244,63,94,.10);border-color:rgba(244,63,94,.25);color:#FDA4AF}
[data-theme="dark"] .md-body .ref-only{background:rgba(245,158,11,.12);color:#FCD34D}
[data-theme="dark"] .cmp-up{background:rgba(34,197,94,.15);color:#86EFAC}
[data-theme="dark"] .cmp-down{background:rgba(244,63,94,.15);color:#FDA4AF}
[data-theme="dark"] .cmp-same{background:rgba(227,6,19,.14);color:#FCA5A5}
[data-theme="dark"] .streak .day.on{background:rgba(245,158,11,.22);color:#FCD34D}
[data-theme="dark"] .chip-unofficial{background:rgba(245,158,11,.15);color:#FCD34D}
[data-theme="dark"] .check-item:hover{background:var(--ink-100);border-color:var(--ink-300)}
[data-theme="dark"] img,[data-theme="dark"] .video-embed{opacity:.95}