/* Цвета и шрифты как в приложении (delta-ios/Delta/DesignSystem): тёплый фон, системный шрифт, широкое начертание для чисел. */
:root {
  --bg: #F4F1EB;
  --card: #FFFFFF;
  --fill: #ECE8E0;
  --ink: #15171C;
  --on-ink: #FFFFFF;
  --muted: #6B675F;
  --line: #E2DDD3;
  --food: #E5672A;
  --food-fill: #FBE7DC;
  --strength: #7C4DDB;
  --strength-fill: #EDE6FA;
  --cardio: #2B7FD6;
  --cardio-fill: #E2EEFA;
  --everyday: #0E8F82;
  --everyday-fill: #DBF0EE;
  --food-text: #A84816;
  --cardio-text: #1D62AA;
  --strength-text: #6237C2;
  --everyday-text: #0A6E64;
  --on-target: #1E7D43;
  --on-target-fill: #CFE8D8;
  --deficit: #0A7C9C;
  --error: #D23A50;
  --brand: #4CC27E;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-wide: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 20px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F0E0D;
    --card: #1E1C1A;
    --fill: #2C2A27;
    --ink: #F2F3F5;
    --on-ink: #15171C;
    --muted: #A39E95;
    --line: #34312D;
    --food: #FF8F57;
    --food-fill: #3A2418;
    --strength: #A98BFF;
    --strength-fill: #2C2540;
    --cardio: #66AEFF;
    --cardio-fill: #283040;
    --everyday: #3CC8B8;
    --everyday-fill: #163330;
    --food-text: #FF8F57;
    --cardio-text: #66AEFF;
    --strength-text: #A98BFF;
    --everyday-text: #3CC8B8;
    --on-target: #4CC27E;
    --on-target-fill: #24553A;
    --deficit: #4CC3E6;
    --error: #FF6B80;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--everyday); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { margin: 0; line-height: 1.15; text-wrap: balance; }
p { margin: 0; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left));
  padding-right: max(20px, env(safe-area-inset-right));
}

/* Шапка */
.top { padding-block: 18px; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; text-decoration: none; letter-spacing: -0.01em; }
.logo img { width: 34px; height: 34px; border-radius: 9px; }
.top nav { display: flex; gap: 20px; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--muted); padding: 10px 2px; }
.top nav a:hover { color: var(--ink); }
@media (max-width: 560px) { .top nav .opt { display: none; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 24px; border: 0; border-radius: 14px;
  background: var(--ink); color: var(--on-ink);
  font: 600 17px/1 var(--font); text-decoration: none; cursor: pointer;
}
.btn:hover { opacity: 0.9; }
.btn[disabled] { opacity: 0.5; cursor: default; }

/* Первый экран */
.hero { padding-block: 32px 72px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 48px; align-items: center; }
.eyebrow { font: 600 13px/1.3 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.hero h1 { font: 800 clamp(36px, 6vw, 60px)/1.04 var(--font-wide); letter-spacing: -0.03em; margin-top: 14px; }
.hero h1 em { font-style: normal; color: var(--deficit); }
.hero .lead { font-size: clamp(18px, 2.2vw, 21px); color: var(--muted); margin-top: 20px; max-width: 34em; }
.hero .cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 30px; }
.hero .cta small { color: var(--muted); font-size: 14px; }
@media (max-width: 820px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding-top: 12px; }
}

/* Телефон с экраном «Сегодня» */
.phone {
  width: min(330px, 100%); margin-inline: auto;
  background: var(--bg); border: 10px solid #111; border-radius: 48px;
  box-shadow: 0 30px 60px -20px rgba(20, 16, 10, 0.35);
  padding: 22px 14px 18px; display: flex; flex-direction: column; gap: 10px;
  font-family: var(--font);
}
@media (prefers-color-scheme: dark) { .phone { border-color: #2a2826; box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.8); } }
.phone .bar { display: flex; justify-content: space-between; font-size: 13px; font-weight: 600; padding-inline: 10px; }
.phone .title { font-size: 26px; font-weight: 700; padding-inline: 6px; margin-top: 6px; }
.screen-card { background: var(--card); border-radius: 18px; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.screen-card .row { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.screen-card .date { font-size: 13px; color: var(--muted); }
.hero-num { font: 800 46px/1 var(--font-wide); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.hero-num span { font-size: 18px; font-weight: 600; letter-spacing: 0; color: var(--muted); margin-left: 4px; }
.hero-cap { font-size: 13px; color: var(--muted); margin-top: -4px; }
.gauge { height: 10px; border-radius: 6px; background: var(--fill); position: relative; overflow: hidden; }
.gauge i { position: absolute; inset: 0 auto 0 0; width: 64%; background: var(--food); border-radius: 6px; }
.gauge b { position: absolute; top: 0; bottom: 0; left: 82%; width: 10%; background: var(--on-target-fill); opacity: 0.9; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; border-top: 1px solid var(--line); padding-top: 8px; font-size: 12px; color: var(--muted); }
.split b { display: block; color: var(--ink); font-size: 16px; font-variant-numeric: tabular-nums; }
.ledger { font-size: 14px; }
.ledger .row { padding-block: 3px; }
.ledger .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; vertical-align: 1px; }
.ledger .kc { font-variant-numeric: tabular-nums; font-weight: 600; }
.ledger .plus { color: var(--everyday-text); }
.composer { display: flex; align-items: center; gap: 8px; background: var(--card); border-radius: 999px; padding: 10px 14px; font-size: 14px; color: var(--muted); }
.composer .mic { margin-left: auto; width: 30px; height: 30px; border-radius: 50%; background: var(--ink); display: grid; place-items: center; }
.composer .mic svg { width: 14px; height: 14px; fill: var(--on-ink); }

/* Секции */
.section { padding-block: 64px; }
.section h2 { font: 800 clamp(28px, 4vw, 40px)/1.1 var(--font-wide); letter-spacing: -0.02em; max-width: 20em; }
.section .sub { color: var(--muted); font-size: 19px; margin-top: 14px; max-width: 38em; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 36px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 36px; }
@media (max-width: 820px) { .grid3, .grid2 { grid-template-columns: 1fr; } }
.card { background: var(--card); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; }
.card p, .card li { color: var(--muted); font-size: 16px; }
.card ul { margin: 0; padding-left: 1.1em; display: flex; flex-direction: column; gap: 6px; }
.step { font: 700 13px/1 var(--font-mono); width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; }
.t-food { background: var(--food-fill); color: var(--food-text); }
.t-cardio { background: var(--cardio-fill); color: var(--cardio-text); }
.t-every { background: var(--everyday-fill); color: var(--everyday-text); }
.t-str { background: var(--strength-fill); color: var(--strength-text); }
.accent { border-top: 4px solid var(--line); }
.a-food { border-top-color: var(--food); }
.a-cardio { border-top-color: var(--cardio); }
.a-every { border-top-color: var(--everyday); }
.a-str { border-top-color: var(--strength); }
.skip { position: absolute; left: 12px; top: -60px; z-index: 10; background: var(--ink); color: var(--on-ink); padding: 10px 14px; border-radius: 10px; text-decoration: none; }
.skip:focus { top: 12px; }
.quote { font-family: var(--font-mono); font-size: 14px; background: var(--fill); color: var(--ink); border-radius: 10px; padding: 8px 12px; align-self: flex-start; }

/* Пример расчёта */
.receipt { background: var(--card); border-radius: var(--radius); padding: 24px; font-family: var(--font-mono); font-size: 15px; max-width: 460px; }
.receipt .row { display: flex; justify-content: space-between; gap: 12px; padding-block: 4px; }
.receipt .head { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.receipt .sum { border-top: 1px dashed var(--line); margin-top: 8px; padding-top: 10px; font-weight: 700; font-size: 17px; }
.receipt .sum span:last-child { color: var(--deficit); }
.split-sec { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; }
@media (max-width: 820px) { .split-sec { grid-template-columns: 1fr; gap: 28px; } }

/* Форма списка ожидания */
.join { background: #15171C; color: #FFFFFF; border: 1px solid var(--line); border-radius: 28px; padding: clamp(28px, 5vw, 56px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.join h2 { color: #FFFFFF; }
.join .sub { color: rgba(255, 255, 255, 0.7); }
@media (max-width: 820px) { .join { grid-template-columns: 1fr; gap: 24px; } }
.form { display: flex; flex-direction: column; gap: 14px; }
.form label.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; }
.form input[type="text"] {
  min-height: 52px; border-radius: 14px; border: 1px solid transparent; padding: 0 16px;
  font: 400 17px var(--font); background: #FFFFFF; color: #15171C;
}
.form input[type="text"]:focus { outline: 3px solid var(--brand); outline-offset: 0; }
.form .check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; line-height: 1.45; color: rgba(255, 255, 255, 0.75); }
.form .check input { width: 20px; height: 20px; margin: 0; flex: none; accent-color: var(--brand); }
.form .btn { background: var(--brand); color: #0B1A11; align-self: flex-start; }
.form .trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .msg { font-size: 15px; min-height: 1.5em; }
.form .msg.ok { color: var(--brand); }
.form .msg.err { color: #FF8C9C; }
.done { display: none; flex-direction: column; gap: 10px; }
.done h3 { font-size: 24px; }

/* Вопросы */
.faq { margin-top: 28px; display: flex; flex-direction: column; gap: 10px; max-width: 760px; }
.faq details { background: var(--card); border-radius: 16px; padding: 18px 20px; }
.faq summary { font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); margin-top: 10px; }

/* Подвал */
.foot { padding-block: 40px 56px; color: var(--muted); font-size: 14px; }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; border-top: 1px solid var(--line); padding-top: 28px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--ink); }

/* Юридические страницы и поддержка */
.doc { padding-block: 24px 64px; }
.doc .wrap { max-width: 780px; }
.doc h1 { font: 800 clamp(30px, 5vw, 42px)/1.1 var(--font-wide); letter-spacing: -0.02em; }
.doc .meta { color: var(--muted); font-size: 15px; margin-top: 12px; }
.doc h2 { font-size: 22px; font-weight: 700; margin-top: 40px; letter-spacing: -0.01em; }
.doc h3 { font-size: 18px; font-weight: 600; margin-top: 24px; }
.doc p, .doc li { margin-top: 12px; }
.doc ul, .doc ol { padding-left: 1.3em; margin: 0; }
.doc .table { overflow-x: auto; margin-top: 16px; background: var(--card); border-radius: 16px; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.doc th { font-size: 13px; color: var(--muted); font-weight: 600; }
.doc tr:last-child td { border-bottom: 0; }
.doc .box { background: var(--card); border-radius: 16px; padding: 18px 20px; margin-top: 20px; }
.doc .box p:first-child { margin-top: 0; }
.contacts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
@media (max-width: 600px) { .contacts { grid-template-columns: 1fr; } }
.contacts a { background: var(--card); border-radius: 16px; padding: 18px 20px; text-decoration: none; display: flex; flex-direction: column; gap: 4px; }
.contacts a b { font-size: 17px; }
.contacts a span { color: var(--muted); font-size: 15px; }