/* =========================================================================
   Mulheres da Vinha — Posteridade 2026
   Design system CSS — tokens transcribed 1:1 from DESIGN.md frontmatter.
   ========================================================================= */

:root {
  /* Colors */
  --color-primary: #A80000;
  --color-on-primary: #FFFFFF;
  --color-primary-hover: #8C0000;
  --color-accent-blue: #1A38C0;
  --color-navy: #001152;
  --color-ink: #1A1A1A;
  --color-ink-muted: #4A4A4A;
  --color-ink-subtle: #7A7A7A;
  --color-canvas: #FFFFFF;
  --color-surface-1: #FBF8F3;
  --color-surface-2: #F3EEE4;
  --color-hairline: #E4DFD4;
  --color-watercolor-shadow: #DADFE2; /* sombra cinza-azulada extraida da aquarela do hero */
  --color-semantic-success: #1E7A34;
  --color-semantic-warning: #B8860B;
  --color-semantic-danger: #A80000;

  /* Typography */
  --font-serif: "Playfair Display", Georgia, serif;
  --font-sans: "Poppins", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --fs-display-lg: 40px;
  --fs-headline: 28px;
  --fs-card-title: 20px;
  --fs-body: 16px;
  --fs-body-sm: 14px;
  --fs-caption: 12px;
  --fs-button: 16px;

  /* Radius */
  --radius-none: 0;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Spacing */
  --spacing-0: 0;
  --spacing-1: 4px;
  --spacing-2: 8px;
  --spacing-3: 12px;
  --spacing-4: 16px;
  --spacing-5: 24px;
  --spacing-6: 32px;
  --spacing-7: 48px;
  --spacing-8: 64px;
  --spacing-9: 96px;
  --spacing-10: 128px;
}

/* ---------------------------------------------------------------------
   Reset
   --------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 72px; }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
  padding-top: 72px; /* top-nav is fixed and always visible — offset content below it */
}

/* Visible focus outline for every interactive element */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-accent-blue);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------------
   Typography scale
   --------------------------------------------------------------------- */
.display-lg {
  font-family: var(--font-serif);
  font-size: var(--fs-display-lg);
  font-weight: 600;
  line-height: 1.15;
}

.headline {
  font-family: var(--font-sans);
  font-size: var(--fs-headline);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
}

.card-title {
  font-family: var(--font-sans);
  font-size: var(--fs-card-title);
  font-weight: 600;
  line-height: 1.3;
}

.body { font-family: var(--font-body); font-size: var(--fs-body); font-weight: 400; line-height: 1.6; }
.body-sm { font-family: var(--font-body); font-size: var(--fs-body-sm); font-weight: 400; line-height: 1.55; }
.caption {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.button-text {
  font-family: var(--font-sans);
  font-size: var(--fs-button);
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ---------------------------------------------------------------------
   Layout primitives
   --------------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--spacing-5);
}

.section {
  padding-block: var(--spacing-9);
}

.section--surface {
  background: var(--color-surface-1);
}

/* Accent section — the one deliberate exception to "red is never a surface"
   (DESIGN.md), used for Alimentação per owner request. White/cream text for
   AA contrast (verified: #FFFFFF on #A80000 = 7.88:1, #FBF8F3 = 7.44:1). */
.section--accent {
  background: var(--color-primary);
}

.section--accent .section-head .display-lg { color: #FFFFFF; }
.section--accent .section-head .body { color: rgba(255, 255, 255, 0.88); }

/* Preletores — cinza-azulado extraido da sombra da aquarela do hero (contraste
   verificado: navy 13:1, ink-muted 6.6:1, ambos acima de AA). */
.section--watercolor {
  background: var(--color-watercolor-shadow);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--spacing-7);
}

.section-head .display-lg { color: var(--color-navy); margin-bottom: var(--spacing-3); }
.section-head .body { color: var(--color-ink-muted); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--spacing-3);
  top: -60px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--spacing-3) var(--spacing-4);
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top 0.15s ease;
}
.skip-link:focus { top: var(--spacing-3); }

/* ---------------------------------------------------------------------
   Components — Top nav
   --------------------------------------------------------------------- */
.top-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-hairline);
  z-index: 100;
}

.top-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.top-nav__brand { display: flex; align-items: center; gap: var(--spacing-2); }
.top-nav__brand img { height: 32px; width: auto; }

.top-nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-6);
}

.top-nav__links a {
  font-family: var(--font-sans);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.02em;
}

.top-nav__links a:hover { color: var(--color-primary); }

.top-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-5);
}

/* Mobile-only nav additions (hidden on desktop).
   Scoped with #nav-links to out-specificity .btn-primary's display:inline-flex,
   which is declared later in this file. */
#nav-links .lang-switch--mobile,
#nav-links .nav-links__cta { display: none; }

/* Hamburger toggle — hidden on desktop, shown at <=768px */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: var(--radius-pill);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle span { position: relative; }
.nav-toggle span::before,
.nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }

.top-nav.is-open .nav-toggle span { background: transparent; }
.top-nav.is-open .nav-toggle span::before { top: 0; transform: rotate(45deg); }
.top-nav.is-open .nav-toggle span::after { top: 0; transform: rotate(-45deg); }

/* ---------------------------------------------------------------------
   Components — Language switcher
   --------------------------------------------------------------------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  font-weight: 600;
}

.lang-switch button {
  /* ink-muted, not ink-subtle: ink-subtle (#7A7A7A) fails WCAG AA (4.29:1)
     for 14px text on near-white backgrounds; ink-muted passes comfortably. */
  color: var(--color-ink-muted);
  padding: var(--spacing-1) var(--spacing-1);
}

.lang-switch button.is-active { color: var(--color-primary); }
.lang-switch button:hover { color: var(--color-primary); }

.lang-switch__sep { color: var(--color-hairline); }

.lang-switch--footer button { color: rgba(255, 255, 255, 0.65); }
.lang-switch--footer button.is-active,
.lang-switch--footer button:hover { color: #FFFFFF; }
.lang-switch--footer .lang-switch__sep { color: rgba(255, 255, 255, 0.3); }

/* ---------------------------------------------------------------------
   Components — Buttons
   --------------------------------------------------------------------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  border-radius: var(--radius-pill);
  padding: 16px 32px;
  box-shadow: 0 4px 14px rgba(168, 0, 0, 0.25);
  font-family: var(--font-sans);
  font-size: var(--fs-button);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background-color 0.15s ease, transform 0.15s ease;
}

.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
  border-radius: var(--radius-pill);
  padding: 14px 30px;
  font-family: var(--font-sans);
  font-size: var(--fs-button);
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-secondary:hover { background: var(--color-navy); color: #FFFFFF; }

/* ---------------------------------------------------------------------
   Components — Cards
   --------------------------------------------------------------------- */
.card {
  background: var(--color-surface-1);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  padding: var(--spacing-5);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.card__title {
  font-family: var(--font-sans);
  font-size: var(--fs-card-title);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--spacing-2);
}

.card__address {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  color: var(--color-ink-muted);
  margin-top: var(--spacing-1);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-5);
}

/* ---------------------------------------------------------------------
   Hero
   --------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: var(--spacing-6);
  padding-bottom: var(--spacing-9);
  background: var(--color-canvas);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: var(--spacing-7);
}

.hero__content { display: flex; flex-direction: column; align-items: flex-start; gap: var(--spacing-4); }

.hero__wordmark { width: 260px; height: auto; margin-bottom: var(--spacing-2); }
.hero__title { width: 100%; max-width: 620px; height: auto; }

.hero__eyebrow-group { display: flex; flex-direction: column; gap: var(--spacing-2); margin-top: var(--spacing-2); }
.hero__subtitle-1 { height: 24px; width: auto; }
.hero__subtitle-2 { height: 22px; width: auto; }

.hero__date { width: 240px; max-width: 80%; height: auto; margin-top: var(--spacing-3); }

.hero__verse-block {
  margin-top: var(--spacing-4);
  padding-left: var(--spacing-4);
  border-left: 3px solid var(--color-primary);
}

.hero__verse-img { width: 260px; max-width: 100%; height: auto; }
.hero__verse-text { font-family: var(--font-serif); font-style: italic; color: var(--color-ink-muted); font-size: 17px; line-height: 1.5; }
/* ink-muted, not ink-subtle: see .lang-switch button comment above */
.hero__verse-ref { display: block; margin-top: var(--spacing-1); font-family: var(--font-body); font-size: var(--fs-body-sm); color: var(--color-ink-muted); }

.hero__cta { margin-top: var(--spacing-6); }

.hero__image { position: relative; }
.hero__image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* ---------------------------------------------------------------------
   About / verse section
   --------------------------------------------------------------------- */
.about { text-align: center; }
.about .container { max-width: 780px; }
.about__title { color: var(--color-navy); margin-bottom: var(--spacing-5); }
.about__body {
  font-family: var(--font-serif);
  font-size: 22px;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-ink-muted);
  position: relative;
}
.about__body::before {
  content: "\201C";
  color: var(--color-primary);
  font-family: var(--font-serif);
  font-size: 20px;
}

/* ---------------------------------------------------------------------
   Speakers (Preletores)
   --------------------------------------------------------------------- */
.speakers-photo {
  max-width: 900px;
  margin: 0 auto var(--spacing-6);
}

.speakers-photo img { width: 100%; height: auto; display: block; }

.speakers-names {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-4);
  max-width: 900px;
  margin-inline: auto;
  text-align: center;
}

.speaker-name {
  font-family: var(--font-sans);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.35;
}

/* ---------------------------------------------------------------------
   Notice banner (schedule "sujeita a confirmação")
   --------------------------------------------------------------------- */
.notice-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  background: #FCF3E0;
  border: 1px solid var(--color-semantic-warning);
  color: #6B5109;
  border-radius: var(--radius-md);
  padding: var(--spacing-4) var(--spacing-5);
  margin-bottom: var(--spacing-6);
  font-family: var(--font-body);
  font-size: var(--fs-body-sm);
  font-weight: 600;
}

.notice-banner__icon { font-size: 18px; line-height: 1; flex-shrink: 0; }

.review-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-semantic-warning);
  color: #FFFFFF;
  font-size: 12px;
  margin-left: var(--spacing-2);
  flex-shrink: 0;
}

/* ---------------------------------------------------------------------
   Schedule
   --------------------------------------------------------------------- */
.schedule-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-5);
}

.schedule-day {
  background: var(--color-surface-1);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.schedule-day > summary {
  cursor: pointer;
  list-style: none;
  padding: var(--spacing-4) var(--spacing-5);
  background: var(--color-navy);
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: var(--fs-card-title);
  font-weight: 600;
}

.schedule-day > summary::-webkit-details-marker { display: none; }

.schedule-day__list { padding: var(--spacing-4) var(--spacing-5); display: flex; flex-direction: column; gap: var(--spacing-3); }

.schedule-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-3);
  padding-bottom: var(--spacing-3);
  border-bottom: 1px solid var(--color-hairline);
}
.schedule-item:last-child { border-bottom: none; padding-bottom: 0; }

.schedule-item__time {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-body-sm);
  color: var(--color-primary);
  min-width: 74px;
  flex-shrink: 0;
}

.schedule-item__label { font-size: var(--fs-body-sm); color: var(--color-ink-muted); flex-grow: 1; }

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */
.footer { background: var(--color-navy); color: #FFFFFF; padding-block: var(--spacing-8); }

.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--spacing-6);
}

.footer__logos { display: flex; align-items: center; gap: var(--spacing-6); }
.footer__logos img {
  height: 48px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer__cta-text {
  font-family: var(--font-serif);
  font-size: 22px;
  max-width: 520px;
}

.footer__bottom {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  padding-top: var(--spacing-6);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.footer__copyright { font-size: var(--fs-caption); color: rgba(255, 255, 255, 0.6); }

/* ---------------------------------------------------------------------
   Responsive — 1440 wide
   --------------------------------------------------------------------- */
@media (min-width: 1440px) {
  .container { max-width: 1280px; }
}

/* ---------------------------------------------------------------------
   Responsive — 1024 (tablet landscape / small desktop)
   --------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero .container { gap: var(--spacing-5); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .schedule-grid { grid-template-columns: 1fr; }
  .speakers-names { grid-template-columns: repeat(3, 1fr); }
}

/* ---------------------------------------------------------------------
   Responsive — 768 (tablet / mobile)
   --------------------------------------------------------------------- */
@media (max-width: 768px) {
  .section { padding-block: var(--spacing-8); }

  .nav-toggle { display: flex; }
  .lang-switch--desktop,
  .nav-links__cta--desktop { display: none; }

  .top-nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #FFFFFF;
    border-bottom: 1px solid var(--color-hairline);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height 0.25s ease;
  }

  .top-nav.is-open .top-nav__links {
    max-height: 420px;
    visibility: visible;
  }

  .top-nav__links a { padding: var(--spacing-4) var(--spacing-5); border-bottom: 1px solid var(--color-hairline); }

  #nav-links .lang-switch--mobile {
    display: flex;
    justify-content: center;
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--color-hairline);
  }

  #nav-links .nav-links__cta {
    display: inline-flex;
    margin: var(--spacing-4) var(--spacing-5);
  }

  .hero { padding-top: var(--spacing-7); }
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero__image { order: -1; margin-bottom: var(--spacing-5); }
  .hero__content { align-items: flex-start; }
  .hero__wordmark { width: 200px; }
  .hero__cta { width: 100%; }
  .hero__cta .btn-primary { width: 100%; }

  .card-grid { grid-template-columns: 1fr; }
  .speakers-names { grid-template-columns: repeat(2, 1fr); }

  .about__body { font-size: 19px; }

  .footer__bottom { flex-direction: column; text-align: center; }
}

/* ---------------------------------------------------------------------
   Responsive — 480 (small mobile)
   --------------------------------------------------------------------- */
@media (max-width: 480px) {
  .container { padding-inline: var(--spacing-4); }

  .hero__title { max-width: 100%; }
  .hero__wordmark { width: 160px; }
  .hero__date { width: 200px; }
  .hero__verse-img { width: 200px; }

  .display-lg { font-size: 32px; }
  .headline { font-size: 24px; }

  .footer__logos { flex-direction: column; gap: var(--spacing-4); }
}