/* Visual identity from the MVP spec: deep navy, blue cards, green + cyan highlights, white text */
:root{
  color-scheme: dark;
  --bg:#0C2340; --surface:#132F54; --surface-2:#18396A; --ink:#FFFFFF; --muted:#A8BCD8;
  --line:rgba(255,255,255,.10); --brand:#22C55E; --brand-ink:#04230F; --brand-soft:rgba(34,197,94,.15);
  --cyan:#06B6D4; --night:#06B6D4; --night-soft:rgba(6,182,212,.15);
  --sos:#FB923C; --sos-soft:rgba(251,146,60,.15);
  --radius:18px; --shadow:0 6px 24px rgba(0,0,0,.18);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer}
button:disabled{opacity:.6;cursor:default}
#app{max-width:440px;margin:0 auto;min-height:100vh;padding:0 16px 96px}
.boot{text-align:center;padding-top:40vh;color:var(--muted);font-weight:600;margin:0}
.center{text-align:center;padding:30vh 8px 0}

/* Header */
.top{padding:18px 0 10px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.top h1{font-size:20px;margin:0;letter-spacing:-.01em}
.top .sub{color:var(--muted);font-size:13px}

/* Cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:12px}
.eyebrow{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 6px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand)}
.pill.night{background:var(--night-soft);color:var(--night)}
h2{font-size:18px;margin:6px 0 4px;letter-spacing:-.01em}
.muted{color:var(--muted)}
.small{font-size:13px}
.night-card{border-left:4px solid var(--night)}
.night-row{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.big{font-size:26px;font-weight:700;letter-spacing:-.02em}

/* Home shortcut */
.shortcut{display:flex;gap:12px;align-items:center;width:100%;text-align:left;border:1px solid var(--line);background:var(--brand-soft);border-radius:var(--radius);padding:12px 14px;margin-bottom:12px;text-decoration:none;color:inherit}
.shortcut.plain{background:var(--surface)}
.shortcut .emoji{font-size:24px}
.shortcut .t{font-weight:600}
.shortcut .d{font-size:13px;color:var(--muted)}
.shortcut .chev{margin-left:auto;color:var(--brand);font-weight:700}

/* Calculator */
.calc{border-top:4px solid var(--brand)}
.ing{list-style:none;margin:12px 0 0;padding:0}
.ing li{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--line)}
.ing li:first-child{border-top:0}
.ing .ico{width:36px;height:36px;border-radius:10px;background:var(--surface-2);display:grid;place-items:center;font-size:20px;flex:none}
.ing .name{font-weight:600}
.ing .why{font-size:12px;color:var(--muted)}
.ing .qty{margin-left:auto;text-align:right}
.ing .qty b{display:block;font-size:16px}
.ing .qty span{font-size:12px;color:var(--muted)}
.swapped-tag{font-size:11px;font-weight:600;color:var(--brand);margin-left:4px}
.row{display:flex;gap:8px;margin-top:12px}
.btn{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:11px 14px;font-weight:600}
.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.btn.block{width:100%}
.row .btn.block{flex:1}
.howto{font-size:13px;color:var(--muted);margin-top:10px}

/* Accordion */
.acc{padding:0;overflow:hidden}
.acc > button.head{width:100%;display:flex;align-items:center;gap:10px;background:none;border:0;padding:16px;text-align:left;font-weight:600;font-size:16px}
.acc .head .chev{margin-left:auto;transition:transform .2s;color:var(--muted)}
.acc.open .head .chev{transform:rotate(90deg)}
.acc .body{display:none;padding:0 16px 16px}
.acc.open .body{display:block}
.bonus-tag{font-size:11px;font-weight:600;color:var(--muted);display:block}

/* SOS */
.sos-choices{display:grid;gap:8px}
.sos-choice{border:1px solid var(--line);background:var(--surface-2);border-radius:14px;padding:12px;text-align:left;font-weight:600}
.sos-choice.active{border-color:var(--sos);background:var(--sos-soft);color:var(--sos)}
.steps{list-style:none;padding:0;margin:12px 0 0;counter-reset:s}
.steps li{position:relative;padding:8px 0 8px 40px;counter-increment:s}
.steps li::before{content:counter(s);position:absolute;left:0;top:8px;width:28px;height:28px;border-radius:50%;background:var(--sos);color:#fff;display:grid;place-items:center;font-weight:700;font-size:13px}
.steps b{display:block}
.disclaimer{font-size:12px;color:var(--muted);background:var(--surface-2);border-radius:10px;padding:10px;margin-top:10px}

/* Schedule */
.progress{height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin:8px 0 4px;border:1px solid var(--line)}
.progress i{display:block;height:100%;background:var(--brand);width:0;transition:width .25s}
.days{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin:12px 0}
.day{aspect-ratio:1;border:1px solid var(--line);background:var(--surface-2);border-radius:12px;font-size:10px;font-weight:600;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;padding:0}
.day .n{font-size:15px}
.day.done{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.day.next{border-color:var(--brand);border-width:2px}
.phases{display:grid;gap:8px}
.phase{border:1px solid var(--line);border-radius:14px;padding:10px 12px}
.phase.current{border-color:var(--brand);background:var(--brand-soft)}
.phase .ph{display:flex;justify-content:space-between;gap:8px;font-weight:600;font-size:14px}
.phase .ph span{color:var(--muted);font-weight:500;font-size:12px;white-space:nowrap}
.phase p{margin:4px 0 0;font-size:13px;color:var(--muted)}

/* Locked */
.locked{text-align:center;padding:28px 18px}
.locked .lock{font-size:36px}
.locked ul{text-align:left;margin:12px 0 18px;padding-left:20px;color:var(--muted);font-size:14px}

/* Auth */
.auth{padding-top:12vh;text-align:center}
.auth img{width:84px;height:84px;border-radius:22px}
.auth h1{margin:16px 0 4px;font-size:26px;letter-spacing:-.02em}
.auth form{text-align:left;margin-top:28px}
.auth label{font-size:13px;font-weight:600;display:block;margin-bottom:6px}
.field{width:100%;font:inherit;padding:13px 14px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.field:focus{outline:2px solid var(--brand);outline-offset:1px}
.auth .help{font-size:13px;color:var(--muted);margin-top:14px;text-align:center}
.linkbtn{background:none;border:0;color:var(--brand);font-weight:600;padding:0;text-decoration:underline}

/* Account */
.kv{display:flex;justify-content:space-between;gap:8px;padding:10px 0;border-top:1px solid var(--line);font-size:14px}
.kv:first-of-type{border-top:0}

/* Tab bar */
.tab-bar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:440px;background:var(--surface);border-top:1px solid var(--line);display:flex;padding:6px 8px calc(6px + env(safe-area-inset-bottom));z-index:5}
.tab-bar[hidden]{display:none}
.tab-bar a{flex:1;padding:8px 4px;font-size:12px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none}
.tab-bar a .i{font-size:20px}
.tab-bar a.active{color:var(--brand);font-weight:600}

/* Sheet */
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:10}
.sheet{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:100%;max-width:440px;background:var(--surface);border-radius:20px 20px 0 0;padding:16px 16px calc(20px + env(safe-area-inset-bottom));z-index:11;max-height:85vh;overflow:auto}
.sheet h3{margin:0 0 4px}
.opt-group{margin-top:14px}
.opt-group .lbl{font-size:13px;font-weight:600;margin-bottom:6px}
.opts{display:flex;flex-wrap:wrap;gap:6px}
.opt{border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:7px 12px;font-size:13px}
.opt.sel{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:600}

/* Toast */
#toast{position:fixed;left:50%;bottom:84px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:12px;font-size:13px;transition:opacity .3s;z-index:20;max-width:calc(100% - 32px);text-align:center}

/* ===== Main app (quiz, dashboard, progress, nutrition, profile) ===== */
.ink{color:var(--ink)}
.cyan{color:var(--cyan)}
.grow{flex:1;min-width:0}
.brand-row{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--brand);font-size:14px;margin-bottom:6px}
.top{flex-direction:column;align-items:flex-start;gap:2px}
.top h1{font-size:24px}
.top .sub{color:var(--cyan);font-weight:600}

/* Shot card */
.shot{border-top:4px solid var(--brand)}
.shot-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;flex-wrap:wrap}
.timer{display:inline-block;font-size:13px;background:var(--night-soft);color:var(--cyan);padding:5px 10px;border-radius:999px}
.timer.now{background:var(--brand-soft);color:var(--brand);font-weight:700}
.swap-btn{flex:none;width:32px;height:32px;border-radius:10px;border:1px solid var(--line);background:var(--surface-2);color:var(--cyan);font-weight:700}
.mix{font-size:14px;margin-top:10px;padding:10px 12px;background:var(--surface-2);border-radius:12px}
.note{font-size:12px;margin-top:8px;color:var(--sos)}
.disclaimer{font-size:11px;color:var(--muted);text-align:center;margin:16px 8px 8px}

/* Chips & segmented controls */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:9px 14px;font-size:14px}
.chip.on{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:700}
.seg{display:flex;background:var(--surface-2);border-radius:12px;padding:3px;gap:3px;margin:6px 0 4px}
.seg button{flex:1;border:0;background:none;border-radius:9px;padding:9px 6px;font-size:13px;color:var(--muted)}
.seg button.on{background:var(--cyan);color:#03222A;font-weight:700}

/* Schedule card */
.schedule{display:block;text-decoration:none;color:inherit}
.sched-row{display:flex;align-items:center;gap:12px}
.sched-row > div:first-child{flex:1}
.sched-big{font-weight:700;margin-bottom:4px}
.spark{width:110px;flex:none}
.chart{width:100%;height:auto;display:block}
.chart-empty{font-size:12px;color:var(--muted);padding:16px 0;text-align:center}

/* Forms */
.lbl{display:block;font-size:13px;font-weight:600;margin:14px 0 6px;color:var(--muted)}
.hint{font-size:12px;color:var(--muted);margin:6px 0 0}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.row2 .lbl{margin-top:0}
.check{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:14px}
.check input{width:20px;height:20px;margin:0;accent-color:var(--brand)}
.big-time{font-size:28px;text-align:center;margin-top:10px}

/* Quiz */
.quiz{padding-top:16px;min-height:100vh;display:flex;flex-direction:column}
.quiz-top{display:flex;justify-content:space-between;align-items:center;height:36px}
.back{border:0;background:none;font-size:30px;line-height:1;color:var(--ink);padding:0 8px 0 0}
.quiz-body{flex:1;padding:8px 0 20px}
.quiz-body h2{font-size:22px;margin:14px 0 4px}
.quiz .btn.primary{margin-bottom:24px}
.calc-screen{text-align:center;padding-top:28vh}
.calc-screen h2{font-size:19px;margin:22px 0 8px}
.spinner{width:54px;height:54px;border-radius:50%;border:5px solid var(--surface-2);border-top-color:var(--brand);margin:0 auto;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Progress */
.locked-card{opacity:.92}
.hist{width:100%;border-collapse:collapse;font-size:13px}
.hist th{text-align:left;color:var(--muted);font-weight:600;padding:6px 4px;border-bottom:1px solid var(--line)}
.hist td{padding:8px 4px;border-bottom:1px solid var(--line)}

/* Nutrition */
.glasses{font-size:18px;letter-spacing:2px;margin-top:8px}
.seq{margin:10px 0 6px;padding-left:20px}
.seq li{margin-bottom:10px}
.seq b{display:block}
.seq span{font-size:13px;color:var(--muted)}
.card.warn{border-color:var(--sos)}
.sub-slot{border-top:1px solid var(--line);padding:12px 0}
.sub-slot:first-child{border-top:0}
.sub-head{display:flex;justify-content:space-between;gap:8px;margin-bottom:8px}
.opt small{display:block;font-size:10px;opacity:.8}
.opts{margin-bottom:6px}

/* Profile */
.studies details{border-top:1px solid var(--line);padding:10px 0}
.studies details:first-child{border-top:0}
.studies summary{font-weight:600;cursor:pointer}
.studies p{font-size:13px;margin:8px 0 0;color:var(--muted)}
.studies .ref{font-size:11px;font-style:italic}
a{color:var(--cyan)}

/* Tab bar with 5 tabs */
.tab-bar a{font-size:11px}