/* TaniLearn website chrome (landing, auth, checkout, admin, IQ) */
.site-header {
  display: flex; align-items: center; gap: 14px;
  max-width: 1060px; margin: 0 auto; padding: 18px 24px;
}
.site-header .gspacer { flex: 1; }
.site-main { max-width: 1060px; margin: 0 auto; padding: 10px 24px 60px; }

.hero { text-align: center; padding: 30px 0 10px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); font-weight: 800; margin: 0 0 10px; }
.hero h1 span { color: var(--accent); }
.hero p { color: var(--ink-soft); font-size: 17px; max-width: 60ch; margin: 0 auto 22px; line-height: 1.6; font-family: "Segoe UI", sans-serif; }
.hero .subjects-band { font-size: 30px; letter-spacing: 10px; margin: 12px 0 22px; }

.ad-slot {
  background: #fff; border: 2px dashed #C9C4EE; border-radius: 16px;
  color: var(--faint); text-align: center; font-family: "Segoe UI", sans-serif;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 4px;
  margin: 22px auto;
}
.ad-slot small { font-size: 10px; letter-spacing: .15em; text-transform: uppercase; }
.ad-billboard { max-width: 728px; min-height: 90px; width: 100%; }
.ad-box { width: 300px; min-height: 250px; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 20px 0; }
.feature { background: #fff; border-radius: 18px; padding: 16px 18px; box-shadow: 0 5px 0 var(--card-shadow); }
.feature .fi { font-size: 26px; }
.feature b { display: block; margin: 6px 0 3px; }
.feature p { margin: 0; color: var(--ink-soft); font-size: 13.5px; line-height: 1.5; font-family: "Segoe UI", sans-serif; }

.section-h { text-align: center; font-size: 28px; font-weight: 800; margin: 46px 0 6px; }
.section-sub { text-align: center; color: var(--ink-soft); font-family: "Segoe UI", sans-serif; margin: 0 0 24px; }

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.plan {
  background: #fff; border-radius: 22px; padding: 22px 20px; text-align: center;
  box-shadow: 0 7px 0 var(--card-shadow); border: 3px solid transparent; position: relative;
}
.plan.popular { border-color: var(--accent); }
.plan .badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 11px; font-weight: 800;
  border-radius: 999px; padding: 4px 14px; letter-spacing: .06em;
}
.plan h3 { margin: 4px 0 2px; font-size: 17px; }
.plan .old { color: var(--faint); text-decoration: line-through; font-size: 15px; }
.plan .price { font-size: 34px; font-weight: 800; color: var(--accent); }
.plan .per { color: var(--ink-soft); font-size: 12.5px; font-family: "Segoe UI", sans-serif; }
.plan ul { list-style: none; padding: 0; margin: 12px 0; text-align: left; font-size: 13.5px; font-family: "Segoe UI", sans-serif; }
.plan ul li { padding: 3px 0 3px 22px; position: relative; }
.plan ul li::before { content: '✓'; position: absolute; left: 2px; color: #22C55E; font-weight: 800; }
.plan .btn { display: block; width: 100%; }
.discount-note { text-align: center; margin: 14px 0 0; color: #B07B00; background: #FFF3D6; border-radius: 12px; padding: 10px; font-weight: 800; font-size: 14px; }

.auth-card {
  background: #fff; border-radius: 24px; max-width: 420px; margin: 30px auto;
  padding: 28px 30px; box-shadow: 0 10px 0 var(--card-shadow);
}
.auth-card h2 { margin: 0 0 16px; text-align: center; }
.auth-card label { display: block; font-size: 12px; font-weight: 700; color: var(--faint);
  letter-spacing: .08em; text-transform: uppercase; margin: 14px 0 6px; font-family: "Segoe UI", sans-serif; }
.auth-card input {
  width: 100%; font-size: 16px; font-family: inherit; color: var(--ink);
  background: #F7F5FF; border: 3px solid #E2DEF6; border-radius: 12px; padding: 11px 14px; box-sizing: border-box;
}
.auth-card input:focus { border-color: var(--accent); outline: none; }
.auth-error { background: #FEF0F0; color: #B91C1C; border-radius: 10px; padding: 10px 14px;
  font-size: 13.5px; margin-top: 14px; display: none; font-family: "Segoe UI", sans-serif; }
.auth-card .btn { width: 100%; margin-top: 18px; }
.oauth-row { display: flex; gap: 10px; margin-top: 14px; }
.oauth-btn {
  flex: 1; background: #fff; border: 2px solid #E2DEF6; border-radius: 999px; padding: 10px;
  font-weight: 700; font-size: 13.5px; display: flex; align-items: center; justify-content: center; gap: 8px;
  text-decoration: none; color: var(--ink);
}
.oauth-btn:hover { border-color: var(--accent); }
.auth-alt { text-align: center; margin-top: 16px; font-size: 13.5px; color: var(--ink-soft); font-family: "Segoe UI", sans-serif; }
.auth-alt a { color: var(--accent); font-weight: 700; }
.divider { display: flex; align-items: center; gap: 10px; color: var(--faint); font-size: 12px; margin-top: 16px; }
.divider::before, .divider::after { content: ''; flex: 1; height: 2px; background: #EDEAFA; }

/* checkout */
.chk-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 10px 0; }
.chk-cat { background: #F7F5FF; border: 2.5px solid transparent; border-radius: 12px; padding: 9px 12px;
  font-weight: 700; font-size: 14px; cursor: pointer; display: flex; gap: 8px; align-items: center; }
.chk-cat.sel { border-color: var(--accent); background: #EFEAFF; }
.chk-cat.dim { opacity: .4; cursor: default; }
.pay-row { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.pay-btn { background: #fff; border: 2.5px solid #E2DEF6; border-radius: 14px; padding: 13px;
  font-weight: 800; font-size: 15px; cursor: pointer; }
.pay-btn:hover { border-color: var(--accent); }
.pay-btn.demo { border-style: dashed; color: #B07B00; }
.chk-total { text-align: center; margin: 14px 0 2px; font-size: 15px; font-family: "Segoe UI", sans-serif; }
.chk-total b { font-size: 24px; color: var(--accent); }

/* my plan */
.plan-status { background: #fff; border-radius: 22px; padding: 22px 24px; box-shadow: 0 7px 0 var(--card-shadow); }
.ps-head { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.ps-who { font-size: 12.5px; color: var(--faint); font-family: "Segoe UI", sans-serif; }
.ps-title { margin: 4px 0 0; font-size: 24px; }
.ps-iq { margin-left: auto; background: #F7F5FF; border-radius: 16px; padding: 12px 18px; text-align: center;
  font-family: "Segoe UI", sans-serif; font-size: 22px; }
.ps-iq span { display: block; font-size: 11px; color: var(--faint); font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; margin-bottom: 6px; }
.ps-iq .mini-btn { display: inline-block; text-decoration: none; }
.ps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 18px; }
.ps-grid > div { background: #F7F5FF; border-radius: 14px; padding: 12px 16px; font-family: "Segoe UI", sans-serif; }
.ps-grid b { font-size: 17px; }
.ps-k { display: block; font-size: 11px; color: var(--faint); font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; margin-bottom: 3px; }
.ps-note { margin: 14px 0 0; color: var(--ink-soft); font-family: "Segoe UI", sans-serif; line-height: 1.55; font-size: 14px; }
.ps-subs { margin-top: 16px; font-family: "Segoe UI", sans-serif; font-size: 13.5px; }
.ps-sub { padding: 5px 0; border-top: 1px solid #EDEAFA; }
.acct-cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.acct-cat { background: #fff; border-radius: 14px; padding: 12px 16px; font-weight: 800; font-size: 15px;
  box-shadow: 0 4px 0 var(--card-shadow); opacity: .55; }
.acct-cat.on { opacity: 1; border-left: 5px solid #22C55E; }
.acct-cat span { display: block; font-size: 11.5px; font-weight: 700; color: var(--ink-soft);
  font-family: "Segoe UI", sans-serif; margin-top: 3px; }

/* admin */
.admin-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 16px; overflow: hidden;
  box-shadow: 0 5px 0 var(--card-shadow); font-family: "Segoe UI", sans-serif; font-size: 13.5px; }
.admin-table th { background: #2E2A5C; color: #fff; text-align: left; padding: 10px 12px; font-size: 12px;
  letter-spacing: .06em; text-transform: uppercase; }
.admin-table td { padding: 10px 12px; border-top: 1px solid #EDEAFA; vertical-align: top; }
.admin-table tr:hover td { background: #FBFAFF; }
.tag { display: inline-block; background: #EFEAFF; color: #5B36C4; border-radius: 999px;
  padding: 2px 10px; font-size: 11.5px; font-weight: 700; margin: 1px; }
.tag.trial { background: #FFF3D6; color: #B07B00; }
.sub-dates { font-size: 12px; color: var(--ink-soft); margin-top: 4px; font-variant-numeric: tabular-nums; }
.sub-dates b { display: block; font-size: 11.5px; color: #166534; }
.sub-dates b.soon { color: #B45309; }
.tag.off { background: #FEF0F0; color: #B91C1C; }
.mini-btn { background: #fff; border: 2px solid #E2DEF6; border-radius: 10px; padding: 5px 10px;
  font-weight: 700; font-size: 12px; cursor: pointer; margin: 2px; }
.mini-btn:hover { border-color: var(--accent); }
.admin-search { width: 100%; max-width: 380px; font-size: 15px; font-family: inherit;
  background: #fff; border: 3px solid #E2DEF6; border-radius: 999px; padding: 10px 18px; margin: 14px 0; }
.admin-editor { background: #fff; border-radius: 16px; padding: 16px 18px; margin: 14px 0;
  box-shadow: 0 5px 0 var(--card-shadow); font-family: "Segoe UI", sans-serif; }
.admin-editor label { font-weight: 700; font-size: 13px; margin-right: 10px; }

footer.site-footer { text-align: center; color: var(--faint); font-size: 12.5px; padding: 30px 20px;
  font-family: "Segoe UI", sans-serif; }
@media (max-width: 640px) { .chk-cats { grid-template-columns: 1fr; } }