/* ============================================================
   PHP Maranhão — Stylesheet
   Identidade: entre o sertão e o mangue, entre o babaçu e o código
   ============================================================ */

/* ── Tokens ──────────────────────────────────────────────── */
:root {
  --flag-blue:  #003DA5;
  --flag-red:   #BF0A30;
  --guara:      #E8291C;
  --amazon:     #2D6A4F;
  --mangrove:   #1B3A2E;
  --night:      #0A1222;
  --dune:       #F5F1E4;
  --sand-warm:  #D4A96A;
  --white:      #FFFFFF;
  --off-white:  #F0EDE4;

  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body:    'Lora', Georgia, serif;
  --font-ui:      system-ui, -apple-system, sans-serif;

  --radius: 8px;
  --container: 1100px;
  --nav-h: 70px;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--dune);
  color: var(--night);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3 { line-height: 1.2; }
h1 { font-family: var(--font-heading); font-weight: 700; font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-family: var(--font-heading); font-weight: 600; font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-family: var(--font-heading); font-weight: 600; font-size: clamp(1.1rem, 2vw, 1.45rem); }
p  { font-size: clamp(1rem, 1.5vw, 1.1rem); }

strong { font-weight: 700; }
em { font-style: italic; }

/* ── Container ───────────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
  letter-spacing: .03em;
  text-transform: uppercase;
  font-weight: 600;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.3); }
.btn:active { transform: translateY(0); }

.btn-primary  { background: var(--flag-blue); color: var(--white); border-color: var(--flag-blue); }
.btn-primary:hover { background: #002d80; }
.btn-outline  { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-guara    { background: var(--guara); color: var(--white); border-color: var(--guara); }
.btn-guara:hover { background: #c41f10; }
.btn-amazon   { background: var(--amazon); color: var(--white); border-color: var(--amazon); }
.btn-amazon:hover { background: #1e4f3a; }
.btn-outline-dark { background: transparent; color: var(--night); border-color: var(--night); }
.btn-outline-dark:hover { background: rgba(10,18,34,.08); }
.btn-lg { padding: 1rem 2.25rem; font-size: 1.05rem; }
.btn-nav { padding: .5rem 1.2rem; font-size: .88rem; }

/* ── Navbar ──────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: transparent;
  transition: background .3s, box-shadow .3s;
}
.navbar.scrolled {
  background: var(--night);
  box-shadow: 0 2px 20px rgba(0,0,0,.5);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: .6rem;
}
.nav-logo-img {
  height: 48px;
  width: auto;
  border-radius: 4px;
  opacity: 0;
  transition: opacity .4s;
  flex-shrink: 0;
}
.navbar.scrolled .nav-logo-img { opacity: 1; }

.nav-logo-text {
  font-family: var(--font-ui);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  opacity: 0;
  transition: opacity .4s;
  white-space: nowrap;
  letter-spacing: .05em;
}
.nav-logo-text .logo-accent { color: var(--sand-warm); }
.navbar.scrolled .nav-logo-text { opacity: 0; }

.nav-links {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
}
.nav-links a {
  font-family: var(--font-ui);
  font-size: .88rem;
  color: rgba(255,255,255,.82);
  text-transform: uppercase;
  letter-spacing: .06em;
  transition: color .2s;
}
.nav-links a:hover { color: var(--sand-warm); }

.nav-actions { display: flex; align-items: center; gap: 1rem; }

/* ── Hamburger ───────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .25rem;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Menu ─────────────────────────────────────────── */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: var(--night);
  z-index: 99;
  padding: 1.5rem;
  display: none;
  border-bottom: 3px solid var(--guara);
}
.mobile-menu.open { display: block; }
.mobile-nav-links { display: flex; flex-direction: column; gap: 1rem; }
.mobile-nav-links a {
  font-family: var(--font-ui);
  font-size: 1.2rem;
  color: rgba(255,255,255,.85);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .5rem 0;
  border-bottom: 1px solid rgba(232,41,28,.15);
}

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  background: var(--night);
  overflow: hidden;
  padding-top: var(--nav-h);
}

.hero-landscape {
  width: 100%;
  display: block;
  flex-shrink: 0;
}

.hero-content-wrap {
  position: relative;
  z-index: 2;
  flex: 1;
  display: flex;
  align-items: center;
  padding: 3rem 0 2rem;
}

.hero-content {
  max-width: 720px;
  color: var(--white);
}

.hero-eyebrow {
  font-family: var(--font-ui);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--sand-warm);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: rgba(255,255,255,.72);
  margin-bottom: 2.5rem;
  max-width: 540px;
  line-height: 1.65;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ── Wave Dividers ───────────────────────────────────────── */
.wave-divider {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.wave-divider svg {
  display: block;
  width: 100%;
}

/* ── Section base ────────────────────────────────────────── */
.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  position: relative;
}
/* Remove bottom padding from sections immediately before a wave-start */
.section:has(+ .section-wave-start) { padding-bottom: 0; }

/* Sections where a top-wave provides the visual separation */
.section.section-wave-start {
  padding-top: 0;
}
.section-wave-start .section-header,
.section-wave-start > .container > .section-header,
.section-wave-start > .container > .sobre-layout {
  margin-top: clamp(2rem, 4vw, 3.5rem);
}
.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-title { margin-bottom: .75rem; }
.section-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  opacity: .8;
  max-width: 580px;
  margin: 0 auto;
}

/* ── Section themes ──────────────────────────────────────── */
.section-dune {
  background: var(--dune);
  color: var(--night);
}
.section-dune .section-subtitle { color: rgba(10,18,34,.65); }

.section-mangrove {
  background: var(--mangrove);
  color: var(--white);
}
.section-mangrove .section-subtitle { color: rgba(245,241,228,.7); }
.section-mangrove .section-title    { color: var(--off-white); }

.section-night {
  background: var(--night);
  color: var(--white);
}
.section-night .section-subtitle { color: var(--sand-warm); }
.section-night .section-title    { color: var(--off-white); }

/* ── Decorative SVG floats ───────────────────────────────── */
.section-decor {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: clamp(1rem, 4vw, 5%);
  width: clamp(80px, 10vw, 140px);
  opacity: .18;
  pointer-events: none;
  user-select: none;
}

/* ── Stats grid (sobre) ──────────────────────────────────── */
.sobre-layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: start;
}
.sobre-text {
  max-width: 620px;
}
.sobre-text p  { margin-bottom: 1rem; }
.sobre-text strong { color: var(--flag-blue); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--flag-blue);
  border: 2px solid var(--flag-blue);
  border-radius: var(--radius);
  overflow: hidden;
  min-width: 260px;
  flex-shrink: 0;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.75rem 1rem;
  background: var(--dune);
  gap: .4rem;
}
.stat-value {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--flag-blue);
  line-height: 1;
  font-weight: 700;
}
.stat-label {
  font-family: var(--font-ui);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--night);
  text-align: center;
  opacity: .65;
}

/* ── Section body prose ──────────────────────────────────── */
.section-body p   { margin-bottom: 1rem; }
.section-body h3  { margin-bottom: .5rem; margin-top: 1.5rem; }
.section-cta { text-align: center; margin-top: 2.5rem; }

/* ── PHPub section ───────────────────────────────────────── */
.phpub-content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}
.phpub-content p { margin-bottom: 1rem; color: rgba(245,241,228,.85); }
.phpub-content strong { color: var(--off-white); }

/* ── Eventos cards ───────────────────────────────────────── */
.eventos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.evento-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(212,169,106,.15);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}
.evento-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--amazon);
}
.evento-card.future::before {
  background: linear-gradient(90deg, var(--guara), var(--flag-red));
}
.evento-year {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: rgba(212,169,106,.3);
  line-height: 1;
  margin-bottom: .5rem;
  font-weight: 700;
}
.evento-card.future .evento-year { color: rgba(232,41,28,.4); }
.evento-city {
  font-family: var(--font-ui);
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--sand-warm);
  margin-bottom: 1rem;
}
.evento-participants {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: .5rem;
}
.evento-participants span {
  font-family: var(--font-ui);
  font-size: .8rem;
  color: rgba(255,255,255,.5);
  letter-spacing: .05em;
  text-transform: uppercase;
  display: block;
  margin-top: .1rem;
}
.evento-highlight {
  font-family: var(--font-body);
  font-size: .92rem;
  color: rgba(255,255,255,.65);
  line-height: 1.55;
  font-style: italic;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--night);
  color: var(--sand-warm);
  padding: 3rem 0;
  font-family: var(--font-body);
  border-top: 4px solid var(--guara);
}
.footer-body p { margin-bottom: .5rem; font-size: .95rem; }
.footer-socials {
  display: flex;
  gap: 1rem;
  margin: 1.25rem 0;
  flex-wrap: wrap;
}
.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  color: var(--sand-warm);
  border: 1px solid rgba(212,169,106,.2);
  border-radius: 50%;
  transition: color .2s, background .2s, border-color .2s;
}
.footer-social-link svg { flex-shrink: 0; width: 20px; height: 20px; }
.footer-social-link:hover {
  color: var(--white);
  background: rgba(232,41,28,.2);
  border-color: var(--guara);
}

.footer-copy {
  margin-top: 1.5rem;
  font-size: .85rem;
  color: rgba(212,169,106,.35);
}
.footer-credit {
  margin-top: .5rem;
  font-size: .78rem;
  color: rgba(212,169,106,.22);
}
.footer-credit a {
  color: rgba(212,169,106,.45);
  text-decoration: none;
}
.footer-credit a:hover {
  color: var(--sand-warm);
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .sobre-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .stats-grid {
    max-width: 400px;
    margin: 0 auto;
  }
  .section-decor { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .btn-nav   { display: none; }
}

@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; }
  .btn-lg    { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
  .eventos-grid { grid-template-columns: 1fr; }
}