/* Kaha — folha única, sem build, para o site dos dois apps (Kaha Trainer e
   DietCoach). Paleta tirada do app: verde do ícone e os três eixos de
   Milestones.swift; o vermelho é o do ícone do DietCoach. */

:root {
  --green:        #22C55D;
  --green-dark:   #16A34A;
  --green-deep:   #0B3D22;
  --blue:         #3B82F6;
  --orange:       #F97316;
  --red:          #EF4444;

  --ink:          #0C1412;
  --ink-soft:     #3D4B46;
  --ink-faint:    #6B7A74;
  --line:         #E3EAE6;
  --paper:        #FFFFFF;
  --paper-warm:   #F6F9F7;

  --radius:       18px;
  --radius-lg:    28px;
  --maxw:         1120px;

  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter,
          Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--green-dark); }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.022em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 780; }
h3 { font-size: 1.16rem; font-weight: 680; }
p  { margin: 0 0 1em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 28px;
  height: 66px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 760; letter-spacing: -0.02em; font-size: 1.05rem;
  color: var(--ink); text-decoration: none; white-space: nowrap;
}
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.site-nav { display: flex; gap: 24px; margin-left: auto; }
.site-nav a {
  color: var(--ink-soft); text-decoration: none; font-size: 0.95rem; font-weight: 520;
}
.site-nav a:hover { color: var(--ink); }

/* Marca da casa: um quadrado verde com a inicial, sem ícone de app — a home
   é dos dois. */
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  background: var(--green); color: #05230f; font-weight: 820; font-size: 1rem;
}

/* ---------- Menus dos apps ----------
   `<details>` e não hover: abre com toque no iPhone e com teclado, sem JS.
   O `site.js` só fecha o menu aberto quando se clica fora. */

.app-menus { display: flex; gap: 6px; margin-left: auto; }
.menu { position: relative; }
.menu summary {
  list-style: none; cursor: pointer; user-select: none;
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-radius: 999px;
  font-size: 0.95rem; font-weight: 600; color: var(--ink-soft);
}
.menu summary::-webkit-details-marker { display: none; }
.menu summary::after {
  content: ""; width: 6px; height: 6px; margin-left: 2px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg); opacity: .6;
}
.menu[open] summary::after { transform: translateY(1px) rotate(-135deg); }
.menu summary:hover, .menu[open] summary { background: var(--paper-warm); color: var(--ink); }
.menu summary img { width: 22px; height: 22px; border-radius: 6px; }
.menu-panel {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 230px;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 18px 40px rgba(12,20,18,0.12); padding: 8px;
  display: grid; gap: 2px;
}
.menu-panel a {
  display: block; padding: 9px 12px; border-radius: 10px;
  color: var(--ink); text-decoration: none; font-size: 0.95rem;
}
.menu-panel a:hover { background: var(--paper-warm); }
.menu-panel a.primary { font-weight: 650; }
.menu-panel hr { border: 0; border-top: 1px solid var(--line); margin: 4px 6px; }

/* Seções da landing de um app, logo abaixo do cabeçalho. */
.sub-nav { border-bottom: 1px solid var(--line); background: #fff; }
.sub-nav .wrap {
  display: flex; align-items: center; gap: 24px; height: 50px; overflow-x: auto;
}
.sub-nav .app-name {
  display: flex; align-items: center; gap: 8px; font-weight: 700; white-space: nowrap;
  color: var(--ink); text-decoration: none;
}
.sub-nav .app-name img { width: 24px; height: 24px; border-radius: 6px; }
.sub-nav a { color: var(--ink-soft); text-decoration: none; font-size: 0.93rem; white-space: nowrap; }
.sub-nav a:hover { color: var(--ink); }

/* ---------- Home: os dois apps ---------- */

.hub-hero { background: var(--ink); color: #E9F1EC; padding: 96px 0 72px; text-align: center; }
.hub-hero h1 { color: #fff; }
.hub-hero .lede { font-size: 1.22rem; color: #B7C7BF; max-width: 46ch; margin: 0 auto; }
.products { margin-top: -40px; padding-top: 0; }
.product {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px; display: flex; flex-direction: column; gap: 18px;
  box-shadow: 0 18px 50px rgba(12,20,18,0.08);
}
.product-head { display: flex; align-items: center; gap: 16px; }
.product-head img { width: 64px; height: 64px; border-radius: 15px; box-shadow: 0 6px 16px rgba(0,0,0,0.12); }
.product-head h2 { font-size: 1.6rem; margin: 0; }
.product-head .tag { color: var(--ink-faint); font-size: 0.95rem; margin: 0; }
.product > p { color: var(--ink-soft); margin: 0; }
.product ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.product li { padding-left: 26px; position: relative; color: var(--ink-soft); font-size: 0.98rem; }
.product li::before { content: "✓"; position: absolute; left: 0; color: var(--green-dark); font-weight: 700; }
.product .actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; padding-top: 6px; }
.product .links { font-size: 0.9rem; color: var(--ink-faint); }
.product .links a { color: var(--ink-faint); }

/* ---------- Botões ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 640; font-size: 0.98rem; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #000; }
.btn-ghost { border-color: rgba(255,255,255,0.45); color: #fff; }
.btn-ghost:hover { border-color: #fff; }
.btn-line { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-line:hover { border-color: var(--ink-faint); }
.btn-soon {
  background: var(--green); color: #05230f;
}
.btn-soon:hover { background: var(--green-dark); color: #fff; }
.btn .sub { display: block; font-size: 0.72rem; font-weight: 520; opacity: .72; }

/* ---------- Hero ---------- */

.hero {
  background: linear-gradient(168deg, var(--green) 0%, var(--green-dark) 58%, #0E7A3C 100%);
  color: #fff; overflow: hidden;
  padding: 84px 0 0;
}
.hero .wrap { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 48px; align-items: end; }
.hero h1 { color: #fff; }
.hero .lede { font-size: 1.22rem; max-width: 34ch; color: rgba(255,255,255,0.93); }
.hero-copy { padding-bottom: 96px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 22px; }
.hero-meta { font-size: 0.92rem; color: rgba(255,255,255,0.82); display: flex; flex-wrap: wrap; gap: 8px 18px; }
.hero-meta span::before { content: "·"; margin-right: 8px; opacity: .6; }
.hero-meta span:first-child::before { content: none; margin: 0; }
.hero-shot { position: relative; }
.hero-shot img {
  width: 100%; max-width: 330px; margin: 0 auto;
  border-radius: 38px; border: 8px solid rgba(0,0,0,0.42);
  box-shadow: 0 32px 70px rgba(0,0,0,0.34);
}

/* ---------- Seções ---------- */

section { padding: 88px 0; }
section.tight { padding: 64px 0; }
.bg-warm { background: var(--paper-warm); }
.bg-ink   { background: var(--ink); color: #E9F1EC; }
.bg-ink h2, .bg-ink h3 { color: #fff; }
.bg-ink .muted { color: #9FB3A9; }

.eyebrow {
  text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.76rem;
  font-weight: 700; color: var(--green-dark); margin-bottom: 14px;
}
.bg-ink .eyebrow { color: var(--green); }
.section-lede { font-size: 1.1rem; color: var(--ink-soft); max-width: 62ch; }
.bg-ink .section-lede { color: #B7C7BF; }

/* ---------- Grids ---------- */

.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px;
}
.bg-ink .card { background: #131E1A; border-color: #22322C; }
.card p { color: var(--ink-soft); margin-bottom: 0; font-size: 0.98rem; }
.bg-ink .card p { color: #A9BCB3; }
.card .ico {
  width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  font-size: 19px; margin-bottom: 16px; background: #E9F8EF;
}
.ico.blue   { background: #E8F0FE; }
.ico.orange { background: #FEF0E6; }
.bg-ink .ico { background: #1C2B24; }

/* Passos numerados */
.steps { counter-reset: step; }
.step { position: relative; padding-left: 62px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 2px;
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--green); color: #05230f; font-weight: 780; font-size: 1.05rem;
}

/* Lista de regras do gerador */
.rules { list-style: none; padding: 0; margin: 0; }
.rules li {
  padding: 18px 0 18px 34px; border-bottom: 1px solid #22322C; position: relative;
  color: #C6D6CE;
}
.rules li:last-child { border-bottom: none; }
.rules li::before {
  content: "✓"; position: absolute; left: 0; top: 18px;
  color: var(--green); font-weight: 700;
}
.rules b { color: #fff; font-weight: 640; }

/* Números */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat .n { font-size: 2.3rem; font-weight: 800; letter-spacing: -0.03em; color: var(--green-dark); }
.bg-ink .stat .n { color: var(--green); }
.stat .l { font-size: 0.9rem; color: var(--ink-faint); }
.bg-ink .stat .l { color: #90A69C; }

/* FAQ */
.faq details {
  border-bottom: 1px solid var(--line); padding: 20px 0;
}
.faq summary {
  cursor: pointer; font-weight: 640; font-size: 1.06rem; list-style: none;
  display: flex; justify-content: space-between; gap: 20px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--green-dark); font-size: 1.5rem; font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 14px 0 0; color: var(--ink-soft); max-width: 70ch; }

/* CTA final */
.cta-final { text-align: center; }
.cta-final .btn { margin-top: 10px; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink); color: #90A69C; padding: 56px 0 40px; font-size: 0.93rem;
}
.site-footer a { color: #D2E2DA; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-top { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
.footer-col h4 {
  color: #fff; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.12em;
  margin: 0 0 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.footer-langs { display: flex; gap: 10px; }
.footer-bottom {
  margin-top: 44px; padding-top: 22px; border-top: 1px solid #22322C;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
}

/* ---------- Páginas legais ---------- */

.legal { padding: 60px 0 96px; }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); }
.legal h2 { font-size: 1.34rem; margin-top: 2.2em; }
.legal h3 { font-size: 1.04rem; margin-top: 1.8em; }
.legal p, .legal li { color: var(--ink-soft); }
.legal ul, .legal ol { padding-left: 22px; }
.legal li { margin-bottom: 0.5em; }
.legal .updated {
  color: var(--ink-faint); font-size: 0.92rem; border-bottom: 1px solid var(--line);
  padding-bottom: 24px; margin-bottom: 8px;
}
.legal table {
  width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: 0.95rem;
}
.legal th, .legal td {
  text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.legal th { background: var(--paper-warm); font-weight: 640; color: var(--ink); }
.legal td { color: var(--ink-soft); }
.callout {
  background: var(--paper-warm); border-left: 3px solid var(--green);
  border-radius: 0 12px 12px 0; padding: 18px 22px; margin: 1.6em 0;
}
.callout p:last-child { margin-bottom: 0; }
.lang-switch {
  display: flex; gap: 8px; margin-bottom: 28px; flex-wrap: wrap;
}
.lang-switch a {
  padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 0.88rem; text-decoration: none; color: var(--ink-soft);
}
.lang-switch a.on { background: var(--ink); color: #fff; border-color: var(--ink); }

.todo {
  background: #FFF6E5; border: 1px dashed var(--orange); border-radius: 12px;
  padding: 16px 20px; margin: 1.4em 0; color: #7A3E06;
}
.todo b { color: #7A3E06; }

/* ---------- Responsivo ---------- */

@media (max-width: 900px) {
  .hero { padding-top: 56px; }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-copy { padding-bottom: 40px; }
  .hero-shot img { max-width: 260px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .site-nav { display: none; }
  .brand-text { display: none; }
  .menu summary { padding: 7px 9px; font-size: 0.9rem; }
  .sub-nav .wrap { gap: 18px; }
  .products { margin-top: -24px; }
  .product { padding: 24px; }
  /* Tabela de 3 colunas nas políticas: rola dentro de si em vez de alargar a página. */
  .legal table { display: block; overflow-x: auto; }
  section { padding: 64px 0; }
}

@media (max-width: 420px) {
  .site-header .wrap { gap: 10px; padding: 0 12px; }
  .menu summary img { display: none; }
  .menu-panel { position: fixed; left: 12px; right: 12px; top: 66px; min-width: 0; }
}