/* ==================================================================
   AnswerLab - Custom stylesheet
   Design: Warm academic cream/ink palette with amber accent
   Fonts:  Fraunces (display) + Manrope (body)
================================================================== */

:root{
  --bg:            #f6efe1;      /* warm cream */
  --bg-elev:       #fbf6ea;
  --card:          #ffffff;
  --ink:           #1c2028;      /* near-black ink */
  --ink-2:         #3a3f4a;
  --muted:         #6b7280;
  --line:          #e6dcc5;
  --line-2:        #efe6d1;
  --accent:        #b45309;      /* burnt amber */
  --accent-2:      #d97706;
  --accent-soft:   #fef3c7;
  --success:       #166534;
  --success-soft:  #dcfce7;
  --error:         #991b1b;
  --error-soft:    #fee2e2;
  --info:          #1e40af;
  --info-soft:     #dbeafe;
  --radius:        14px;
  --radius-sm:     8px;
  --shadow-sm:     0 1px 2px rgba(20,20,20,0.06);
  --shadow:        0 6px 24px -8px rgba(20,20,20,0.15);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html,body{ min-height:100%; }
body{
  font-family:'Manrope',system-ui,-apple-system,sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{ color:var(--accent); text-decoration:none; }
a:hover{ color:var(--accent-2); }
h1,h2,h3,h4{ font-family:'Fraunces',Georgia,serif; font-weight:700; color:var(--ink); line-height:1.15; letter-spacing:-.01em; }
h1{ font-size: clamp(2.4rem,5vw,3.75rem); }
h2{ font-size: clamp(1.75rem,3.2vw,2.4rem); }
h3{ font-size:1.25rem; }
h4{ font-size:1.05rem; }
p{ color:var(--ink-2); }
img{ max-width:100%; display:block; }

.container{ max-width:1180px; margin:0 auto; padding:0 24px; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background: rgba(246,239,225,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; padding:14px 24px; }
.brand{ display:flex; align-items:center; gap:10px; color:var(--ink); }
.brand:hover{ color:var(--ink); }
.brand-mark{
  display:grid; place-items:center;
  width:38px; height:38px; border-radius:10px;
  background:var(--ink); color:var(--bg-elev);
  font-family:'Fraunces',serif; font-weight:700; font-size:16px;
}
.brand-name{ font-family:'Fraunces',serif; font-weight:700; font-size:1.25rem; }
.main-nav{ display:flex; align-items:center; gap:6px; }
.main-nav a{
  color:var(--ink-2); padding:8px 14px; border-radius:10px; font-weight:500; font-size:.95rem;
  transition: background-color .15s ease, color .15s ease;
}
.main-nav a:hover{ background:var(--bg-elev); color:var(--ink); }
.main-nav a i{ margin-right:6px; opacity:.7; }
.nav-toggle{ display:none; background:none; border:none; font-size:1.4rem; color:var(--ink); cursor:pointer; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 18px; border-radius:999px; font-weight:600;
  font-size:.95rem; border:1px solid transparent; cursor:pointer;
  transition: transform .12s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
  text-decoration:none;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background:var(--ink); color:var(--bg-elev); }
.btn-primary:hover{ background:#000; color:var(--bg-elev); }
.btn-outline{ background:transparent; border-color:var(--ink); color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:var(--bg-elev); }
.btn-accent{ background:var(--accent); color:#fff; }
.btn-accent:hover{ background:var(--accent-2); color:#fff; }
.btn-ghost{ background:transparent; color:var(--ink-2); }
.btn-ghost:hover{ background:var(--bg-elev); color:var(--ink); }
.btn-sm{ padding:6px 12px; font-size:.85rem; }
.btn-danger{ background:var(--error); color:#fff; }
.btn-block{ width:100%; justify-content:center; }

/* ---------- Main / cards ---------- */
.site-main{ padding:40px 0 80px; }
.card{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:28px; box-shadow: var(--shadow-sm); }
.card + .card{ margin-top:20px; }

.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

/* ---------- Hero ---------- */
.hero{
  padding: 60px 0 40px;
  display:grid; grid-template-columns: 1.15fr 1fr; gap:60px; align-items:center;
}
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  background: var(--accent-soft); color:var(--accent);
  padding:6px 14px; border-radius:999px; font-size:.8rem; font-weight:600;
  letter-spacing:.03em; text-transform:uppercase;
}
.hero h1{ margin:18px 0 18px; }
.hero h1 em{ font-style: italic; color:var(--accent); font-weight:500; }
.hero p.lead{ font-size:1.1rem; color:var(--ink-2); max-width:520px; margin-bottom:28px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-media{
  background:var(--ink); color:var(--bg-elev); border-radius:24px; padding:32px;
  position:relative; overflow:hidden;
}
.hero-media h3{ color:var(--bg-elev); font-family:'Fraunces',serif; font-size:1.35rem; margin-bottom:14px; }
.hero-media .qa-preview{ border-top:1px solid rgba(255,255,255,.15); padding-top:14px; margin-top:14px; }
.hero-media .qa-preview p{ color:rgba(251,246,234,.85); font-size:.95rem; }
.hero-media .badge-row{ display:flex; gap:8px; margin-top:20px; flex-wrap:wrap; }
.hero-media .badge-chip{ background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.15); color:var(--bg-elev); padding:5px 12px; border-radius:999px; font-size:.8rem; }

/* ---------- Section titles ---------- */
.section{ padding: 40px 0; }
.section-head{ display:flex; justify-content:space-between; align-items:end; margin-bottom:28px; gap:20px; flex-wrap:wrap; }
.section-head h2{ margin-bottom:6px; }
.section-head p{ color:var(--muted); }

/* ---------- Feature cards ---------- */
.feature{
  background:var(--card); border:1px solid var(--line); padding:24px; border-radius:var(--radius);
  transition: transform .18s ease, border-color .18s ease;
}
.feature:hover{ transform:translateY(-3px); border-color:var(--accent); }
.feature .ico{ width:44px; height:44px; border-radius:12px; background:var(--accent-soft); color:var(--accent); display:grid; place-items:center; font-size:1.2rem; margin-bottom:14px; }
.feature h3{ margin-bottom:6px; }

/* ---------- Board / class / subject / chapter chips ---------- */
.chip-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:14px; }
.chip-card{
  background:var(--card); border:1px solid var(--line); padding:18px 20px;
  border-radius:var(--radius); display:flex; align-items:center; gap:12px;
  transition: all .16s ease; color:var(--ink); font-weight:600;
}
.chip-card:hover{ border-color:var(--accent); background:var(--bg-elev); color:var(--ink); transform: translateY(-2px); }
.chip-card .chip-ico{ width:38px; height:38px; border-radius:10px; background:var(--accent-soft); color:var(--accent); display:grid; place-items:center; }
.chip-card .chip-sub{ font-weight:500; color:var(--muted); font-size:.8rem; display:block; margin-top:2px; }

.crumbs{ display:flex; flex-wrap:wrap; gap:6px; margin-bottom:20px; color:var(--muted); font-size:.9rem; }
.crumbs a{ color:var(--ink-2); }
.crumbs .sep{ color:var(--line); }

/* ---------- Forms ---------- */
.form-row{ margin-bottom:18px; }
.form-row label{ display:block; font-weight:600; font-size:.9rem; margin-bottom:6px; color:var(--ink); }
.form-row input, .form-row select, .form-row textarea{
  width:100%; padding:11px 14px; border:1px solid var(--line);
  border-radius:10px; font-size:.95rem; font-family:inherit;
  background:var(--card); color:var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  outline:none; border-color:var(--accent); box-shadow: 0 0 0 4px rgba(180,83,9,.12);
}
.form-row .hint{ font-size:.8rem; color:var(--muted); margin-top:4px; }
.form-narrow{ max-width:460px; margin:0 auto; }

/* ---------- Auth pages ---------- */
.auth-card{ max-width:460px; margin:40px auto; }
.auth-card h1{ font-size:2rem; margin-bottom:6px; text-align:center; }
.auth-card p.sub{ text-align:center; color:var(--muted); margin-bottom:24px; }
.auth-alt{ text-align:center; margin-top:16px; color:var(--muted); font-size:.9rem; }

/* ---------- Flash messages ---------- */
.flash{ padding:12px 16px; border-radius:10px; margin-bottom:20px; font-weight:500; font-size:.95rem; }
.flash-success{ background:var(--success-soft); color:var(--success); border:1px solid #86efac; }
.flash-error{ background:var(--error-soft); color:var(--error); border:1px solid #fca5a5; }
.flash-info{ background:var(--info-soft); color:var(--info); border:1px solid #93c5fd; }

/* ---------- Tables ---------- */
.table-wrap{ overflow-x:auto; }
table.data{
  width:100%; border-collapse:separate; border-spacing:0;
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
}
table.data th, table.data td{ padding:12px 16px; text-align:left; border-bottom:1px solid var(--line-2); font-size:.92rem; }
table.data th{ background:var(--bg-elev); color:var(--ink); font-weight:600; font-size:.82rem; text-transform:uppercase; letter-spacing:.05em; }
table.data tr:last-child td{ border-bottom:none; }
table.data tr:hover td{ background:var(--bg-elev); }
.badge{ display:inline-block; padding:3px 10px; border-radius:999px; font-size:.78rem; font-weight:600; }
.badge-free{ background:var(--success-soft); color:var(--success); }
.badge-lock{ background:var(--accent-soft); color:var(--accent); }
.badge-active{ background:var(--success-soft); color:var(--success); }
.badge-expired{ background:var(--error-soft); color:var(--error); }
.badge-pending{ background:var(--info-soft); color:var(--info); }

/* ---------- Question / Answer ---------- */
.qa-list{ display:flex; flex-direction:column; gap:16px; }
.qa-item{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:22px 24px;
}
.qa-item .q-line{ display:flex; align-items:flex-start; gap:14px; }
.qa-item .q-num{
  min-width:34px; height:34px; border-radius:10px; background:var(--ink); color:var(--bg-elev);
  display:grid; place-items:center; font-weight:600; font-size:.9rem;
}
.qa-item .q-text{ font-weight:600; color:var(--ink); font-size:1.02rem; flex:1; }
.qa-item .q-meta{ display:flex; gap:8px; margin-top:10px; margin-left:48px; }
.qa-item .q-meta .badge{ background:var(--bg-elev); color:var(--ink-2); border:1px solid var(--line); }
.qa-item .a-block{
  margin-top:14px; margin-left:48px; padding:14px 16px;
  background:var(--bg-elev); border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0; color:var(--ink-2);
}
.qa-item .a-block strong{ color:var(--accent); display:block; margin-bottom:4px; font-size:.85rem; letter-spacing:.05em; text-transform:uppercase; }

.locked-notice{
  padding:32px; text-align:center; border:1px dashed var(--accent);
  border-radius:var(--radius); background:var(--accent-soft);
}
.locked-notice i{ font-size:2rem; color:var(--accent); margin-bottom:12px; }
.locked-notice h3{ margin-bottom:6px; }

/* ---------- Pricing ---------- */
.pricing-tabs{ display:flex; gap:6px; background:var(--bg-elev); padding:5px; border-radius:999px; width:fit-content; margin: 0 auto 30px; border:1px solid var(--line); }
.pricing-tabs button{
  padding:8px 20px; border:none; background:transparent; cursor:pointer;
  border-radius:999px; font-weight:600; color:var(--ink-2); font-family:inherit; font-size:.9rem;
}
.pricing-tabs button.active{ background:var(--ink); color:var(--bg-elev); }
.plan-card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius);
  padding:26px; display:flex; flex-direction:column; gap:12px; transition: all .2s;
}
.plan-card:hover{ border-color:var(--accent); transform:translateY(-2px); }
.plan-card .price{ font-family:'Fraunces',serif; font-size:2.4rem; font-weight:700; color:var(--ink); }
.plan-card .price small{ font-size:.9rem; font-weight:500; color:var(--muted); font-family:'Manrope',sans-serif; }
.plan-card .plan-tag{ display:inline-block; padding:4px 10px; border-radius:999px; background:var(--accent-soft); color:var(--accent); font-size:.75rem; font-weight:600; text-transform:uppercase; letter-spacing:.05em; width:fit-content; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--ink); color:var(--bg-elev); padding: 40px 0 20px; margin-top:60px; }
.site-footer a{ color:rgba(251,246,234,.7); }
.site-footer a:hover{ color:var(--bg-elev); }
.footer-inner{ display:grid; grid-template-columns:2fr 1fr 1fr; gap:40px; }
.footer-col h4{ color:var(--bg-elev); margin-bottom:12px; font-family:'Fraunces',serif; font-size:1.05rem; }
.footer-col p, .footer-col li{ color:rgba(251,246,234,.7); font-size:.9rem; line-height:1.8; }
.footer-col ul{ list-style:none; }
.footer-col ul li i{ margin-right:6px; opacity:.7; }
.footer-bottom{ margin-top:30px; padding-top:20px; border-top:1px solid rgba(251,246,234,.1); display:flex; justify-content:space-between; font-size:.85rem; color:rgba(251,246,234,.6); }

/* ---------- Admin ---------- */
.admin-layout{ display:grid; grid-template-columns:240px 1fr; min-height:100vh; }
.admin-sidebar{ background:var(--ink); color:var(--bg-elev); padding:24px 16px; position:sticky; top:0; height:100vh; overflow-y:auto; }
.admin-sidebar .brand{ color:var(--bg-elev); margin-bottom:22px; padding-bottom:14px; border-bottom:1px solid rgba(255,255,255,.1); }
.admin-sidebar .brand .brand-mark{ background:var(--accent); color:#fff; }
.admin-sidebar a{ display:flex; align-items:center; gap:10px; padding:9px 12px; border-radius:8px; color:rgba(251,246,234,.7); font-size:.9rem; font-weight:500; }
.admin-sidebar a:hover, .admin-sidebar a.active{ background:rgba(255,255,255,.06); color:var(--bg-elev); }
.admin-sidebar a i{ width:16px; text-align:center; }
.admin-content{ padding:32px 40px; background:var(--bg); }
.admin-topbar{ display:flex; justify-content:space-between; align-items:center; margin-bottom:28px; }
.admin-topbar h1{ font-size:1.8rem; margin:0; }
.stat-card{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:22px; }
.stat-card .stat-label{ font-size:.8rem; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; margin-bottom:6px; }
.stat-card .stat-value{ font-family:'Fraunces',serif; font-size:2rem; font-weight:700; color:var(--ink); }
.stat-card .stat-ico{ float:right; width:38px; height:38px; border-radius:10px; background:var(--accent-soft); color:var(--accent); display:grid; place-items:center; }

/* ---------- Ticket ---------- */
.ticket-thread{ display:flex; flex-direction:column; gap:14px; }
.msg{ padding:14px 18px; border-radius:12px; border:1px solid var(--line); background:var(--card); max-width:80%; }
.msg.mine{ align-self:flex-end; background:var(--accent-soft); border-color:#fde68a; }
.msg.admin{ align-self:flex-start; background:var(--bg-elev); }
.msg .meta{ font-size:.75rem; color:var(--muted); margin-bottom:4px; }

/* ---------- Utilities ---------- */
.text-center{ text-align:center; }
.mt-1{ margin-top:8px; } .mt-2{ margin-top:16px; } .mt-3{ margin-top:24px; } .mt-4{ margin-top:36px; }
.mb-1{ margin-bottom:8px; } .mb-2{ margin-bottom:16px; } .mb-3{ margin-bottom:24px; }
.flex-between{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; }
.text-muted{ color:var(--muted); }
.hidden{ display:none !important; }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); }
  .hero{ grid-template-columns:1fr; padding:40px 0 20px; }
  .footer-inner{ grid-template-columns:1fr; }
  .admin-layout{ grid-template-columns:1fr; }
  .admin-sidebar{ position:relative; height:auto; }
  .admin-content{ padding:20px; }
}
@media (max-width: 720px){
  .main-nav{
    display:none; position:absolute; top:64px; left:0; right:0;
    background:var(--bg); border-bottom:1px solid var(--line);
    flex-direction:column; padding:16px 24px; gap:8px;
  }
  .main-nav.open{ display:flex; }
  .main-nav a{ width:100%; }
  .nav-toggle{ display:inline-block; }
  .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; gap:6px; text-align:center; }
}