/* Segredos.org — home stylesheet (Modernist tokens, system fonts) */
:root {
  --color-bg: #f3f2f2;
  --color-surface: #eae9e9;
  --color-text: #201e1d;
  --color-accent: #ec3013;
  --color-accent-700: #93200e;
  --color-divider: rgba(32, 30, 29, 0.4);
  --color-muted: rgba(32, 30, 29, 0.62);
  --font-stack: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-6: 24px; --space-8: 32px;
  --shadow-sm: 0 1px 2px rgba(32,30,29,.08);
  --shadow-md: 0 4px 14px rgba(32,30,29,.10);
  --header-h: 72px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-stack); font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { font-weight: 800; line-height: 1.1; letter-spacing: -0.015em; margin: 0 0 var(--space-3); }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
a:hover { color: var(--color-accent-700); }
img, svg { display: block; max-width: 100%; }
::selection { background: rgba(236,48,19,.18); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 var(--space-6); }
.kicker {
  font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--color-accent); margin-bottom: var(--space-3);
}
.section { padding: 72px 0; border-top: 2px solid var(--color-divider); }
.section-title { font-size: 34px; max-width: 620px; text-wrap: pretty; }
.section-lead { color: var(--color-muted); max-width: 560px; margin-bottom: var(--space-8); }

/* Buttons — labels flush left */
.btn {
  display: inline-flex; align-items: center; justify-content: flex-start; gap: 8px;
  font: inherit; font-weight: 800; font-size: 14px; line-height: 1.2;
  padding: 12px 18px; border: 1px solid transparent; border-radius: 0;
  cursor: pointer; text-decoration: none; color: var(--color-text); background: transparent;
}
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: #c9280f; }
.btn-primary:active { background: var(--color-accent-700); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: rgba(32,30,29,.07); }
.btn-secondary:active { background: rgba(32,30,29,.14); }
.btn-lg { padding: 15px 24px; font-size: 15px; }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: var(--color-bg); border-bottom: 2px solid var(--color-divider);
  transition: box-shadow .2s ease;
}
.site-header .nav {
  display: flex; align-items: center; gap: var(--space-6);
  height: var(--header-h); transition: height .25s ease;
}
.site-header.shrunk .nav { height: 56px; }
.site-header.shrunk { box-shadow: var(--shadow-md); }
.brand { font-weight: 800; font-size: 18px; letter-spacing: -0.01em; color: var(--color-text); text-decoration: none; margin-right: auto; display: inline-flex; align-items: baseline; gap: 2px; }
.brand .dot { color: var(--color-accent); }
.nav-links { display: flex; align-items: center; gap: var(--space-6); }
.nav-links a { color: var(--color-text); text-decoration: none; font-size: 14px; font-weight: 600; }
.nav-links a:hover { color: var(--color-accent); }
.nav-toggle { display: none; background: none; border: 1px solid var(--color-divider); padding: 8px; cursor: pointer; }
.nav-toggle svg { width: 20px; height: 20px; }

/* Hero */
.hero { padding: calc(var(--header-h) + 72px) 0 72px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(34px, 4.6vw, 58px); margin-bottom: var(--space-4); text-wrap: pretty; }
.hero h1 em { font-style: normal; color: var(--color-accent); }
.hero-sub { font-size: 18px; color: var(--color-muted); max-width: 520px; margin-bottom: var(--space-8); }
.hero-ctas { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.mockup { border: 2px solid var(--color-text); background: #fff; box-shadow: var(--shadow-md); }

/* Stats */
.stats { border-top: 2px solid var(--color-divider); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: var(--space-8) var(--space-6); border-left: 2px solid var(--color-divider); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-num { font-size: 40px; font-weight: 800; letter-spacing: -0.02em; line-height: 1; }
.stat-num small { font-size: 22px; font-weight: 800; }
.stat-label { font-size: 13px; color: var(--color-muted); margin-top: var(--space-2); }

/* Feature cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--color-divider); border: 2px solid var(--color-divider); }
.card { background: var(--color-bg); padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); position: relative; }
.card:hover { background: var(--color-surface); }
.card-icon { width: 28px; height: 28px; color: var(--color-accent); }
.card h3 { font-size: 16px; margin: 0; }
.card p { font-size: 13.5px; color: var(--color-muted); margin: 0; }
.tag {
  position: absolute; top: var(--space-3); right: var(--space-3);
  font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 3px 8px; border: 1px solid var(--color-divider); color: var(--color-muted);
}

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }
.step { border-top: 2px solid var(--color-text); padding-top: var(--space-4); }
.step-num { font-size: 13px; font-weight: 800; color: var(--color-accent); letter-spacing: .08em; }
.step h3 { font-size: 17px; margin: var(--space-2) 0; }
.step p { font-size: 13.5px; color: var(--color-muted); margin: 0; }

/* Plans */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--color-divider); border: 2px solid var(--color-divider); }
.plan { background: var(--color-bg); padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-4); }
.plan-name { font-size: 20px; font-weight: 800; }
.plan-tag { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #fff; background: var(--color-accent); padding: 3px 8px; align-self: flex-start; }
.plan.featured { background: var(--color-text); color: var(--color-bg); }
.plan.featured .plan-list li { border-color: rgba(243,242,242,.25); }
.plan-list { list-style: none; margin: 0; padding: 0; flex: 1; font-size: 13.5px; }
.plan-list li { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-divider); }
.plan .btn { margin-top: auto; }
.plan.featured .btn-secondary { color: var(--color-bg); border-color: rgba(243,242,242,.4); }
.plan.featured .btn-secondary:hover { background: rgba(243,242,242,.12); }

/* FAQ */
.faq { max-width: 760px; }
.faq details { border-bottom: 1px solid var(--color-divider); }
.faq details:first-of-type { border-top: 2px solid var(--color-divider); }
.faq summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: var(--space-4);
  align-items: center; padding: var(--space-4) 0; font-weight: 700; font-size: 15.5px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { flex: none; width: 18px; height: 18px; color: var(--color-accent); transition: transform .2s ease; }
.faq details[open] summary .chev { transform: rotate(45deg); }
.faq details p { color: var(--color-muted); font-size: 14.5px; margin: 0 0 var(--space-4); max-width: 640px; }

/* Poster CTA */
.poster { background: var(--color-accent); color: #fff; padding: 88px 0; }
.poster h2 { font-size: clamp(30px, 4vw, 52px); max-width: 700px; margin-bottom: var(--space-6); text-wrap: pretty; }
.poster .btn { background: #fff; color: var(--color-accent); }
.poster .btn:hover { background: #f3f2f2; }

/* Footer */
.site-footer { border-top: 2px solid var(--color-divider); padding: 56px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-8); }
.footer-col h4 { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-muted); }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); }
.footer-col a { color: var(--color-text); text-decoration: none; font-size: 14px; }
.footer-col a:hover { color: var(--color-accent); }
.footer-brand img { width: 36px; height: 36px; margin-bottom: var(--space-3); }
.footer-note { margin-top: var(--space-8); padding-top: var(--space-4); border-top: 1px solid var(--color-divider); font-size: 12.5px; color: var(--color-muted); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .site-header .nav, .faq summary .chev { transition: none; }
}

/* Responsive */
@media (max-width: 1440px) { .wrap { max-width: 1180px; } }
@media (max-width: 1024px) {
  .cards, .plans { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--color-bg); border-bottom: 2px solid var(--color-divider); padding: var(--space-3) var(--space-6) var(--space-6);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--color-divider); }
  .nav-links .btn { margin-top: var(--space-3); border-bottom: 0; padding: 14px 18px; }
  .nav-toggle { display: inline-flex; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { border-left: 0; padding-left: 0; border-top: 1px solid var(--color-divider); }
  .stat:nth-child(-n+2) { border-top: 0; }
  .section { padding: 56px 0; }
  .section-title { font-size: 28px; }
}
@media (max-width: 480px) {
  .cards, .plans, .steps, .footer-grid, .stats-grid { grid-template-columns: 1fr; }
  .stat { border-top: 1px solid var(--color-divider); }
  .stat:first-child { border-top: 0; }
  .hero { padding-top: calc(var(--header-h) + 40px); }
  .hero-ctas .btn { width: 100%; }
}