/* =========================================================
   Trail4U — Design System
   Cores: laranja + preto
   ========================================================= */

:root {
  --t4u-orange: #ff6a00;
  --t4u-orange-dark: #e65a00;
  --t4u-orange-light: #ff8a3d;
  --t4u-black: #0a0a0a;
  --t4u-black-2: #141414;
  --t4u-black-3: #1c1c1c;
  --t4u-white: #ffffff;
  --t4u-gray-50: #f7f7f7;
  --t4u-gray-100: #ececec;
  --t4u-gray-300: #cfcfcf;
  --t4u-gray-500: #7a7a7a;
  --t4u-gray-700: #333;
  --t4u-radius: 6px;
  --t4u-radius-lg: 14px;
  --t4u-shadow: 0 10px 30px rgba(0,0,0,.08);
  --t4u-shadow-lg: 0 20px 60px rgba(0,0,0,.25);
  --t4u-transition: 220ms cubic-bezier(.2,.7,.2,1);
  --t4u-container: 1200px;
  --font-display: 'Bebas Neue', Impact, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--t4u-black);
  background: var(--t4u-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--t4u-orange); text-decoration: none; transition: color var(--t4u-transition); }
a:hover { color: var(--t4u-orange-dark); }
h1,h2,h3,h4 { margin: 0 0 .5em; line-height: 1.15; font-weight: 800; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
.screen-reader-text { position: absolute !important; clip: rect(1px,1px,1px,1px); width: 1px; height: 1px; overflow: hidden; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--t4u-orange); color: #fff; padding: 8px 16px; z-index: 9999; }
.skip-link:focus { left: 8px; top: 8px; }

.container { width: 100%; max-width: var(--t4u-container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,10,.92);
  backdrop-filter: blur(10px);
  transition: box-shadow var(--t4u-transition), background var(--t4u-transition);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.site-header.is-scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.35); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; gap: 24px; }
.site-branding a, .site-title-link { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; }
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: var(--t4u-radius);
  background: var(--t4u-orange); color: #000; font-family: var(--font-display); font-size: 22px; letter-spacing: 1px;
  box-shadow: 0 6px 20px rgba(255,106,0,.4);
}
.site-title { font-family: var(--font-display); font-size: 28px; letter-spacing: 2px; color: #fff; }

.primary-navigation ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 32px; }
.primary-navigation a {
  color: #fff; text-transform: uppercase; letter-spacing: 1.5px; font-size: 13px; font-weight: 600;
  position: relative; padding: 6px 0;
}
.primary-navigation a::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--t4u-orange);
  transition: width var(--t4u-transition);
}
.primary-navigation a:hover { color: var(--t4u-orange); }
.primary-navigation a:hover::after,
.primary-navigation .current-menu-item > a::after { width: 100%; }

.menu-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: 8px;
  width: 44px; height: 44px; flex-direction: column; justify-content: center; gap: 5px;
}
.menu-toggle span { display: block; width: 24px; height: 2px; background: #fff; transition: transform var(--t4u-transition), opacity var(--t4u-transition); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .menu-toggle { display: flex; }
  .primary-navigation {
    position: fixed; inset: 72px 0 0 0; background: var(--t4u-black);
    transform: translateX(100%); transition: transform var(--t4u-transition); padding: 40px 24px;
  }
  .primary-navigation.is-open { transform: translateX(0); }
  .primary-navigation ul { flex-direction: column; gap: 20px; }
  .primary-navigation a { font-size: 20px; }
  body.menu-open { overflow: hidden; }
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: center;
  background: linear-gradient(135deg, #000 0%, #1a0a00 50%, #331500 100%);
  background-size: cover; background-position: center;
  color: #fff; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255,106,0,.25), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255,106,0,.15), transparent 40%);
  pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
  background: linear-gradient(to bottom, transparent, var(--t4u-white));
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; max-width: 900px; padding: 120px 0 100px; }
.eyebrow, .section-eyebrow {
  display: inline-block; font-family: var(--font-body); font-weight: 700;
  text-transform: uppercase; letter-spacing: 3px; font-size: 12px;
  color: var(--t4u-orange); margin-bottom: 20px;
  padding-left: 40px; position: relative;
}
.eyebrow::before, .section-eyebrow::before {
  content: ''; position: absolute; left: 0; top: 50%; width: 28px; height: 2px; background: var(--t4u-orange);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: .95; letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-subtitle { font-size: 1.2rem; max-width: 640px; color: rgba(255,255,255,.85); margin-bottom: 40px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; right: 24px; bottom: 40px; z-index: 2;
  color: rgba(255,255,255,.5); font-size: 11px; letter-spacing: 4px; writing-mode: vertical-rl;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { transform: translateY(0); opacity: .5; } 50% { transform: translateY(10px); opacity: 1; } }

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 16px 32px; font-weight: 700; font-size: 14px; letter-spacing: 2px;
  text-transform: uppercase; border-radius: var(--t4u-radius); border: 2px solid transparent;
  cursor: pointer; transition: all var(--t4u-transition); text-decoration: none;
}
.btn-primary { background: var(--t4u-orange); color: #000; border-color: var(--t4u-orange); box-shadow: 0 10px 30px rgba(255,106,0,.35); }
.btn-primary:hover { background: var(--t4u-orange-dark); border-color: var(--t4u-orange-dark); color: #000; transform: translateY(-2px); box-shadow: 0 14px 40px rgba(255,106,0,.5); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost:hover { background: #fff; color: #000; border-color: #fff; }

/* =========================================================
   Sections
   ========================================================= */
.section { padding: 100px 0; position: relative; }
.section-dark { background: var(--t4u-black); color: #fff; }
.section-dark .section-title { color: #fff; }
.section-dark .card { background: var(--t4u-black-2); color: #fff; }
.section-dark .card h3 a, .section-dark .card h2 a { color: #fff; }
.section-dark .card h3 a:hover, .section-dark .card h2 a:hover { color: var(--t4u-orange); }
.section-dark .card p { color: rgba(255,255,255,.7); }
.section-dark .link-arrow { color: var(--t4u-orange); }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0;
}
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 56px; flex-wrap: wrap; }
.link-arrow { font-weight: 700; text-transform: uppercase; letter-spacing: 2px; font-size: 13px; }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: center; }
.about-copy p { font-size: 1.1rem; color: var(--t4u-gray-700); }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.stat { padding: 32px 24px; border: 1px solid var(--t4u-gray-100); border-radius: var(--t4u-radius-lg); transition: all var(--t4u-transition); background: #fff; }
.stat:hover { border-color: var(--t4u-orange); transform: translateY(-4px); box-shadow: var(--t4u-shadow); }
.stat-number { display: block; font-family: var(--font-display); font-size: 3.5rem; color: var(--t4u-orange); line-height: 1; margin-bottom: 8px; }
.stat-label { display: block; font-size: 13px; text-transform: uppercase; letter-spacing: 2px; color: var(--t4u-gray-500); font-weight: 600; }

@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 48px; } }

/* Cards */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.card {
  background: #fff; border-radius: var(--t4u-radius-lg); overflow: hidden;
  transition: transform var(--t4u-transition), box-shadow var(--t4u-transition);
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--t4u-shadow-lg); }
.card-media { display: block; position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--t4u-black); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms ease; }
.card:hover .card-media img { transform: scale(1.06); }
.card-date {
  position: absolute; top: 16px; left: 16px;
  background: var(--t4u-orange); color: #000; font-weight: 800;
  padding: 6px 12px; border-radius: 4px; font-size: 13px; letter-spacing: 1px; text-transform: uppercase;
}
.card-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.card-body h2, .card-body h3 { font-size: 1.4rem; margin-bottom: 12px; font-family: var(--font-body); font-weight: 800; }
.card-body h2 a, .card-body h3 a { color: var(--t4u-black); }
.card-body h2 a:hover, .card-body h3 a:hover { color: var(--t4u-orange); }
.card-meta { list-style: none; padding: 0; margin: 0 0 12px; display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--t4u-gray-500); }
.card-meta li { display: flex; align-items: center; gap: 4px; }
.badge {
  display: inline-block; background: var(--t4u-black); color: var(--t4u-orange);
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase; font-weight: 700;
  padding: 4px 10px; border-radius: 3px; margin-bottom: 12px; align-self: flex-start;
}
.card-date-inline { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--t4u-orange); font-weight: 700; margin-bottom: 8px; display: block; }

/* CTA banner */
.section-cta {
  background: linear-gradient(135deg, var(--t4u-orange) 0%, var(--t4u-orange-dark) 100%);
  color: #000; text-align: center;
}
.cta-inner { max-width: 720px; margin: 0 auto; }
.section-cta h2 { font-family: var(--font-display); font-size: clamp(2.2rem, 6vw, 4rem); text-transform: uppercase; letter-spacing: 1px; }
.section-cta p { font-size: 1.2rem; margin-bottom: 32px; }
.section-cta .btn-primary { background: #000; color: var(--t4u-orange); border-color: #000; box-shadow: 0 10px 30px rgba(0,0,0,.3); }
.section-cta .btn-primary:hover { background: #fff; color: #000; border-color: #fff; }

.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 60px 24px;
  border: 2px dashed var(--t4u-gray-300); border-radius: var(--t4u-radius-lg); color: var(--t4u-gray-500);
}

/* Page header */
.page-header { padding: 60px 0 40px; text-align: center; }
.page-header .section-title { margin-bottom: 16px; }
.single-thumb { margin: 40px 0; border-radius: var(--t4u-radius-lg); overflow: hidden; }
.details-list { list-style: none; padding: 0; margin: 32px 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.details-list li {
  padding: 20px; background: var(--t4u-gray-50); border-left: 3px solid var(--t4u-orange); border-radius: var(--t4u-radius);
  display: flex; flex-direction: column; gap: 4px;
}
.details-list span { font-size: 11px; text-transform: uppercase; letter-spacing: 2px; color: var(--t4u-gray-500); font-weight: 700; }
.details-list strong { font-size: 1.1rem; }

.prose { font-size: 1.1rem; color: var(--t4u-gray-700); }
.prose h2 { font-size: 1.8rem; margin-top: 2em; }
.prose h3 { font-size: 1.4rem; margin-top: 1.5em; }
.prose a { text-decoration: underline; }
.prose blockquote { border-left: 4px solid var(--t4u-orange); padding: 8px 24px; margin: 24px 0; font-style: italic; color: var(--t4u-gray-500); }

.pagination { display: flex; justify-content: center; margin-top: 60px; }
.pagination .page-numbers {
  display: inline-block; padding: 10px 16px; margin: 0 4px; border: 1px solid var(--t4u-gray-100);
  border-radius: var(--t4u-radius); color: var(--t4u-black); font-weight: 600;
}
.pagination .page-numbers.current, .pagination .page-numbers:hover { background: var(--t4u-orange); border-color: var(--t4u-orange); color: #000; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: var(--t4u-black); color: rgba(255,255,255,.7); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 60px; }
.footer-brand p { max-width: 320px; }
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.footer-logo .site-title { color: #fff; }
.widget-title { color: #fff; font-size: 14px; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 20px; }
.footer-contact, .footer-menu, .footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-menu li a, .footer-contact li a, .footer-contact li { color: rgba(255,255,255,.7); text-decoration: none; }
.footer-menu li a:hover, .footer-contact li a:hover { color: var(--t4u-orange); }
.social-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.social-links a {
  padding: 8px 14px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px;
  font-size: 12px; letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,.8);
}
.social-links a:hover { background: var(--t4u-orange); border-color: var(--t4u-orange); color: #000; }
.newsletter-form { display: flex; gap: 8px; margin-top: 12px; }
.newsletter-form input {
  flex: 1; padding: 12px 14px; border-radius: var(--t4u-radius);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); color: #fff; font-family: inherit;
}
.newsletter-form input::placeholder { color: rgba(255,255,255,.4); }
.newsletter-form button {
  padding: 12px 18px; background: var(--t4u-orange); color: #000; border: 0; border-radius: var(--t4u-radius);
  font-weight: 700; text-transform: uppercase; letter-spacing: 1px; font-size: 12px; cursor: pointer;
}
.newsletter-form button:hover { background: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.5); }

@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* =========================================================
   Reveal animation
   ========================================================= */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Selection */
::selection { background: var(--t4u-orange); color: #000; }