/* MathsTutors.Online parent portal. Fonts are self-hosted (SIL OFL, see /fonts). */
@font-face { font-family: "Inter"; font-weight: 400; font-display: swap; src: url("/fonts/inter-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 500; font-display: swap; src: url("/fonts/inter-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-weight: 600; font-display: swap; src: url("/fonts/inter-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Plus Jakarta Sans"; font-weight: 600; font-display: swap; src: url("/fonts/plus-jakarta-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Plus Jakarta Sans"; font-weight: 700; font-display: swap; src: url("/fonts/plus-jakarta-sans-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "Plus Jakarta Sans"; font-weight: 800; font-display: swap; src: url("/fonts/plus-jakarta-sans-latin-800-normal.woff2") format("woff2"); }

:root {
  /* brand */
  --navy: #041f60; --navy-2: #0a2c7d; --cyan: #4de4ff; --dusky: #3bb5d9; --lilac: #a6b6f8; --purple: #5b5299; --white: #ffffff;
  /* ui */
  --ink: #0b1a45; --muted: #5b6687; --line: rgba(4, 31, 96, .08); --bg: #f4f6fd; --tint: #f1f4ff; --tint-2: #eef1ff;
  --good: #0f7a5c; --good-bg: #e3f7ef; --late: #e8a33a; --warn: #9a5b00; --warn-bg: #fff3dc; --bad: #b4233a; --bad-bg: #fdeaed;
  --shadow-sm: 0 1px 2px rgba(4, 31, 96, .06), 0 2px 8px rgba(4, 31, 96, .05);
  --shadow-lg: 0 2px 4px rgba(4, 31, 96, .06), 0 12px 32px rgba(4, 31, 96, .12);
  --display: "Plus Jakarta Sans", system-ui, sans-serif;
  --text: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 400 16px/1.5 var(--text); color: var(--ink); background: var(--bg); }
body.has-tabs { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
h1, h2, h3 { font-family: var(--display); }
a { color: var(--purple); }
[hidden] { display: none !important; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.error { color: var(--bad); }
.stroke { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--dusky); outline-offset: 2px; }

/* ---------- header ---------- */
.hero-bg {
  position: relative; color: var(--white);
  padding: max(16px, env(safe-area-inset-top)) 20px 76px;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(77, 228, 255, .35) 0%, rgba(77, 228, 255, 0) 55%),
    radial-gradient(90% 80% at 0% 100%, rgba(91, 82, 153, .55) 0%, rgba(91, 82, 153, 0) 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
}
.hero-inner { max-width: 34rem; margin: 0 auto; }
.bar { display: flex; align-items: center; justify-content: space-between; min-height: 36px; }
.brand { font: 800 16px var(--display); letter-spacing: .01em; }
.brand span { color: var(--cyan); }
.logout { display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 999px; color: var(--white); background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .22); font: 600 13px var(--text); cursor: pointer; }
.logout svg { width: 16px; height: 16px; }
.greet { margin: 22px 0 2px; font-size: 15px; color: rgba(255, 255, 255, .78); }
.hero-bg h1 { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: -.01em; line-height: 1.2; }
.seg { display: inline-flex; flex-wrap: wrap; margin-top: 16px; padding: 4px; border-radius: 999px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .18); }
.seg button { border: 0; background: none; color: rgba(255, 255, 255, .85); font: 600 14px var(--text); padding: 7px 18px; border-radius: 999px; cursor: pointer; }
.seg button.on, .seg span.on { background: var(--white); color: var(--navy); box-shadow: 0 2px 8px rgba(0, 0, 0, .15); }
.seg span.on { font: 600 14px var(--text); padding: 7px 18px; border-radius: 999px; }

/* ---------- content ---------- */
main { max-width: 36rem; margin: 0 auto; }
.content { position: relative; margin-top: -52px; padding: 0 16px; }
.card { background: var(--white); border-radius: 22px; padding: 20px; margin-bottom: 14px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.card.lift { box-shadow: var(--shadow-lg); }
.section-title { display: flex; justify-content: space-between; align-items: baseline; margin: 22px 4px 10px; }
.section-title h2 { margin: 0; font-size: 17px; font-weight: 800; }
.notice { margin: 0 0 14px; padding: 12px 14px; border-radius: 14px; background: var(--warn-bg); color: var(--warn); font-weight: 600; font-size: 14px; }
.loading { padding: 40px 20px; text-align: center; color: var(--muted); }

/* buttons */
.btn { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 16px; border: 0; border-radius: 16px; font: 700 16px var(--display); text-decoration: none; cursor: pointer; }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-primary { margin-top: 16px; color: var(--white); background: linear-gradient(135deg, var(--purple) 0%, var(--navy) 100%); box-shadow: 0 8px 20px rgba(91, 82, 153, .35); }
.btn-ghost { margin-top: 10px; color: var(--navy); background: var(--tint); border: 1px solid #dfe5ff; }
.btn:disabled { opacity: .6; cursor: default; }
.btn-disabled { opacity: .45; box-shadow: none; cursor: default; filter: grayscale(.3); }

/* ---------- home ---------- */
.eyebrow { display: inline-flex; align-items: center; gap: 6px; font: 700 12px var(--text); letter-spacing: .1em; text-transform: uppercase; color: var(--purple); }
.live { width: 8px; height: 8px; border-radius: 50%; background: #22c58b; box-shadow: 0 0 0 4px rgba(34, 197, 139, .18); }
.when { margin: 8px 0 2px; font: 800 30px/1.1 var(--display); letter-spacing: -.02em; }
.when small { font-size: 18px; font-weight: 700; color: var(--muted); }
.when-sub { margin: 4px 0 0; font: 700 17px var(--display); color: var(--muted); }
.countdown { display: inline-block; margin-top: 10px; padding: 4px 10px; border-radius: 999px; background: var(--tint-2); color: var(--purple); font: 600 13px var(--text); }
.meta { display: flex; align-items: center; gap: 10px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.badge { flex: none; width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, var(--lilac), var(--dusky)); color: var(--navy); font: 800 14px var(--display); }
.meta strong { display: block; font-size: 15px; line-height: 1.3; }
.meta span { font-size: 14px; color: var(--muted); }
.pending-note { margin: 14px 0 0; padding: 12px 14px; border-radius: 14px; background: var(--tint); color: var(--muted); font-size: 14px; }

.block { margin-top: 18px; }
.block-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; font-size: 14px; color: var(--muted); }
.block-head b { color: var(--ink); font: 700 14px var(--display); }
.segbar { display: grid; grid-template-columns: repeat(var(--weeks, 6), 1fr); gap: 5px; margin: 8px 0 0; padding: 0; list-style: none; }
.segbar li { height: 8px; border-radius: 99px; background: #e8ecfb; }
.segbar .yes { background: var(--good); }
.segbar .late { background: var(--late); }
.segbar .no { background: var(--bad); }
.segbar .na, .segbar .unknown { background: #cfd6f3; }
.segbar .next { background: linear-gradient(90deg, var(--dusky), var(--cyan)); box-shadow: 0 0 0 3px rgba(77, 228, 255, .25); }

.list { padding: 6px 16px; }
.row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.date-chip { flex: none; width: 46px; text-align: center; border-radius: 12px; padding: 6px 0; background: var(--tint); }
.date-chip b { display: block; font: 800 17px/1 var(--display); color: var(--navy); }
.date-chip span { font: 600 11px var(--text); text-transform: uppercase; color: var(--muted); letter-spacing: .06em; }
.row .t { flex: 1; min-width: 0; }
.row .t strong { display: block; font-size: 14px; }
.row .t span { font-size: 14px; color: var(--muted); }
.pill { font: 600 13px var(--text); padding: 4px 10px; border-radius: 99px; background: var(--tint); color: var(--purple); white-space: nowrap; }
.row.holiday .date-chip { background: var(--warn-bg); }
.row.holiday .date-chip b { color: var(--warn); }
.pill.holiday { background: var(--warn-bg); color: var(--warn); }
.pill.new { background: #e9fbff; color: #0b6d86; }
.list-more { display: block; width: 100%; padding: 12px 0; border: 0; border-top: 1px solid var(--line); background: none; color: var(--purple); font: 600 14px var(--text); cursor: pointer; }

.iconrow { display: flex; align-items: center; gap: 14px; }
.iconrow .ic { flex: none; width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: var(--good-bg); color: var(--good); }
.iconrow .ic.purple { background: var(--tint-2); color: var(--purple); }
.iconrow .ic.amber { background: var(--warn-bg); color: var(--warn); }
.iconrow .ic.cyan { background: linear-gradient(135deg, var(--cyan), var(--dusky)); color: var(--navy); }
.iconrow .ic svg { width: 22px; height: 22px; }
.iconrow strong { display: block; font: 700 15px var(--display); }
.iconrow span { font-size: 14px; color: var(--muted); }
.iconrow p { margin: 0; }

/* ---------- progress ---------- */
.summary { display: grid; grid-template-columns: 112px 1fr; gap: 16px; align-items: center; }
.summary.no-ring { grid-template-columns: 1fr; }
.ring { position: relative; width: 112px; height: 112px; }
.ring svg { transform: rotate(-90deg); }
.ring-center { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.ring-center b { font: 800 30px/1 var(--display); color: var(--navy); }
.ring-center span { font: 600 12px var(--text); color: var(--muted); }
.kpis { display: grid; gap: 10px; }
.kpi span { display: block; font-size: 13px; color: var(--muted); }
.kpi b { font: 800 20px var(--display); }
.kpi b.up { color: var(--good); }
.intro-note { margin: 8px 0 0; font-size: 15px; color: var(--ink); }
.ring-caption { margin: 10px 0 0; font-size: 13px; color: var(--muted); }
.target-note { margin-top: 14px; padding: 10px 12px; border-radius: 12px; background: linear-gradient(90deg, var(--tint-2), #e9fbff); font: 600 14px var(--text); color: var(--navy); }
.legend { display: flex; flex-wrap: wrap; gap: 12px; margin: 14px 0 0; font-size: 13px; color: var(--muted); }
.legend i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; vertical-align: 1px; }
.lg-yes { background: var(--good); } .lg-late { background: var(--late); } .lg-no { background: var(--bad); }
.lg-next { background: var(--cyan); box-shadow: 0 0 0 2px rgba(77, 228, 255, .3); } .lg-todo { background: #e8ecfb; }
.bar-legend { margin-top: 10px; gap: 4px 9px; font-size: 12px; }
.bar-legend i { margin-right: 4px; }

.topic h3 { margin: 0; font-size: 16px; font-weight: 800; }
.topic .sub { font-size: 14px; color: var(--muted); }
.topic-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 8px 10px; }
.topic-head > div:first-child { flex: 1 1 170px; }
.delta { flex: none; font: 800 13px var(--display); padding: 5px 10px; border-radius: 99px; background: var(--good-bg); color: var(--good); white-space: nowrap; }
.delta.pending { background: var(--tint); color: var(--muted); font-weight: 600; }
.delta.down { background: var(--tint); color: var(--muted); }
.compare { margin-top: 14px; display: grid; gap: 10px; }
.cmp-head { display: flex; justify-content: space-between; gap: 8px; font-size: 14px; color: var(--muted); }
.cmp-head b { color: var(--ink); font: 700 14px var(--display); }
.cmp-head b.pending { color: var(--muted); font-weight: 600; }
.track { height: 10px; margin-top: 6px; border-radius: 99px; background: #edf0fb; overflow: hidden; }
.fill { height: 100%; width: 0; border-radius: 99px; }
.fill.first { background: var(--lilac); }
.fill.final { background: linear-gradient(90deg, var(--dusky), var(--cyan)); }
.weeks { display: flex; gap: 6px; margin: 14px 0 0; padding: 0; list-style: none; }
.wk { flex: 1; text-align: center; padding: 7px 0 6px; border-radius: 10px; background: var(--tint); font: 600 12px var(--text); color: var(--muted); }
.wk i { display: block; margin: 0 auto 3px; width: 16px; height: 16px; border-radius: 50%; background: #d6dcf4; }
.wk.yes i { background: var(--good); }
.wk.late i { background: var(--late); }
.wk.no i { background: var(--bad); }
.wk.na i { background: #b9c2e6; }
.video { margin-top: 14px; display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 16px; background: linear-gradient(135deg, var(--navy), var(--purple)); color: var(--white); text-decoration: none; }
.play { flex: none; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; background: rgba(255, 255, 255, .16); }
.play svg { width: 18px; height: 18px; fill: var(--white); }
.video strong { display: block; font: 700 14px var(--display); }
.video span { font-size: 13px; opacity: .85; }
.show-more { margin: 0 0 14px; }

/* ---------- info ---------- */
.soon { margin-left: auto; font: 700 11px var(--text); letter-spacing: .08em; text-transform: uppercase; color: var(--purple); background: var(--tint-2); padding: 4px 8px; border-radius: 99px; }
.callout { display: flex; gap: 12px; padding: 14px; border-radius: 16px; background: linear-gradient(135deg, var(--tint-2), #e9fbff); font-size: 14px; }
.callout svg { flex: none; width: 22px; height: 22px; color: var(--purple); }
.faq { border-bottom: 1px solid var(--line); }
.faq:last-child { border-bottom: 0; }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 0; font: 600 14px var(--text); cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary svg { flex: none; width: 18px; height: 18px; color: var(--muted); transition: transform .2s; }
.faq[open] summary svg { transform: rotate(90deg); }
.faq-body { padding: 0 0 14px; font-size: 14px; color: var(--muted); }
.faq-body p { margin: 0; }

/* ---------- help chat ---------- */
.help .chat { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.bubble { max-width: 92%; padding: 12px 14px; border-radius: 18px; font-size: 15px; line-height: 1.45; }
.bubble p { margin: 0 0 8px; }
.bubble p:last-child { margin-bottom: 0; }
.bubble.bot { align-self: flex-start; background: var(--tint); border-top-left-radius: 6px; }
.bubble.me { align-self: flex-end; background: linear-gradient(135deg, var(--purple), var(--navy)); color: var(--white); border-top-right-radius: 6px; font-weight: 600; }
.bubble .chips { margin-top: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-q { padding: 9px 14px; border-radius: 999px; border: 1px solid #d7ddf5; background: var(--white); color: var(--navy); font: 600 14px var(--text); cursor: pointer; text-align: left; }
.chip-q.accent { background: var(--navy); border-color: var(--navy); color: var(--white); }
.chip-q:disabled { opacity: .5; cursor: default; }
.help-list { margin: 0 0 8px; padding-left: 18px; }
.help-list li { margin: 2px 0; }
.help-link { font-weight: 700; }
.help-form { display: grid; gap: 10px; margin-top: 10px; }
.help-form .field span { display: block; font: 700 13px var(--display); margin-bottom: 4px; color: var(--ink); }
.help-form input, .help-form select, .help-form textarea { width: 100%; padding: 11px 12px; font: 500 15px var(--text); color: var(--ink); border: 1px solid #d7ddf5; border-radius: 12px; background: var(--white); }
.help-form textarea { resize: vertical; }
.help-form .btn-primary { margin-top: 4px; }
.form-status { margin: 0; font-size: 14px; color: var(--muted); }
.form-status.error { color: var(--bad); }

.footer { margin: 18px 0 8px; text-align: center; font-size: 13px; color: var(--muted); }
.footer p { margin: 2px 0; }

/* ---------- floating tab bar ---------- */
.tabbar { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(14px + env(safe-area-inset-bottom)); z-index: 10; width: min(34rem, calc(100% - 32px)); display: flex; gap: 4px; padding: 8px; border-radius: 24px; background: rgba(255, 255, 255, .85); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); border: 1px solid rgba(255, 255, 255, .7); box-shadow: 0 10px 30px rgba(4, 31, 96, .18); }
.tab-button { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 8px 0; border: 0; border-radius: 16px; background: none; color: var(--muted); font: 600 12px var(--text); cursor: pointer; }
.tab-button svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tab-button.active { color: var(--navy); background: var(--tint-2); }
.tab-button.active svg { stroke: var(--purple); }

/* ---------- login page ---------- */
.login .hero-bg { padding-bottom: 84px; }
.login label { display: block; font: 700 14px var(--display); margin-bottom: 6px; }
.login input[type="email"] { width: 100%; padding: 14px; font: 500 16px var(--text); color: var(--ink); border: 1px solid #d7ddf5; border-radius: 14px; background: var(--white); }
.login input[type="email"]:focus { outline: 3px solid rgba(59, 181, 217, .35); border-color: var(--dusky); }
.login .hint { margin: 10px 0 0; font-size: 14px; color: var(--muted); }
.login .status { margin: 12px 0 0; font-size: 14px; }