/* ============================================
   CORRIDA AMAZÔNIA — LANDING PAGE
   Design System & Styles
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors */
  --green-900: #064E1B;
  --green-800: #0A6E26;
  --green-700: #0D8A30;
  --green-600: #119E38;
  --green-500: #15B340;
  --green-400: #2ECF57;
  --green-300: #5DDB7E;
  --green-200: #A3EAAD;
  --green-100: #D4F5D9;
  --green-50: #EDFBEF;

  --orange-900: #7A3A0A;
  --orange-800: #A04E10;
  --orange-700: #C56115;
  --orange-600: #E87B1E;
  --orange-500: #F5921B;
  --orange-400: #F7A73D;
  --orange-300: #F9BD6A;
  --orange-200: #FBD79F;
  --orange-100: #FDECD0;
  --orange-50: #FEF6E8;

  /* Neutrals */
  --dark-900: #0A0E0A;
  --dark-800: #141A14;
  --dark-700: #1E261E;
  --dark-600: #2A342A;
  --dark-500: #3A4A3A;
  --gray-500: #6B7C6B;
  --gray-400: #8A9A8A;
  --gray-300: #A8B8A8;
  --gray-200: #C5D0C5;
  --gray-100: #E2E8E2;
  --white: #FFFFFF;

  /* Semantic */
  --primary: var(--green-700);
  --primary-dark: var(--green-900);
  --primary-light: var(--green-400);
  --accent: var(--orange-500);
  --accent-hover: var(--orange-600);
  --accent-light: var(--orange-300);
  --bg-dark: var(--dark-800);
  --bg-darker: var(--dark-900);
  --text-primary: var(--white);
  --text-secondary: var(--gray-300);
  --text-dark: var(--dark-800);

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, rgba(6, 78, 27, 0.92) 0%, rgba(10, 14, 10, 0.88) 50%, rgba(232, 123, 30, 0.15) 100%);
  --gradient-green: linear-gradient(135deg, var(--green-800) 0%, var(--green-600) 100%);
  --gradient-accent: linear-gradient(135deg, var(--orange-600) 0%, var(--orange-500) 50%, var(--orange-400) 100%);
  --gradient-dark: linear-gradient(180deg, var(--dark-900) 0%, var(--dark-800) 100%);
  --gradient-cta: linear-gradient(135deg, var(--orange-600) 0%, var(--orange-500) 100%);

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1200px;
  --container-padding: 0 24px;

  /* Effects */
  --glass-bg: rgba(10, 14, 10, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(20px);
  --shadow-soft: 0 4px 30px rgba(0, 0, 0, 0.15);
  --shadow-medium: 0 8px 40px rgba(0, 0, 0, 0.25);
  --shadow-strong: 0 16px 60px rgba(0, 0, 0, 0.35);
  --shadow-glow-green: 0 0 30px rgba(21, 179, 64, 0.3);
  --shadow-glow-orange: 0 0 30px rgba(245, 146, 27, 0.3);

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-normal: 0.4s var(--ease-out);
  --transition-slow: 0.6s var(--ease-out);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-darker);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul,
ol {
  list-style: none;
}

/* ---------- Utility ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
}

.section-title span {
  color: var(--accent);
}

.section-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 560px;
}

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered children */
.stagger-children .reveal {
  transition-delay: calc(var(--i, 0) * 0.12s);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-normal);
}

.header.scrolled {
  padding: 10px 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.8rem;
  color: var(--white);
  z-index: 1001;
}

.header-logo img {
  height: 60px;
  width: auto;
}

.header-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.header-logo .logo-text .brand {
  font-size: 1.6rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--white), var(--green-200));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-logo .logo-text .sub {
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 1;
}

/* Decorative grid pattern */
.hero-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.03) 1px, transparent 0);
  background-size: 40px 40px;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(245, 146, 27, 0.15);
  border: 1px solid rgba(245, 146, 27, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 28px;
  animation: fadeSlideUp 0.8s var(--ease-out) 0.2s both;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 8px;
  animation: fadeSlideUp 0.8s var(--ease-out) 0.4s both;
}

.hero-title .highlight {
  display: block;
  background: linear-gradient(135deg, var(--accent) 0%, var(--orange-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: var(--green-200);
  margin-bottom: 12px;
  animation: fadeSlideUp 0.8s var(--ease-out) 0.5s both;
}

.hero-details {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  animation: fadeSlideUp 0.8s var(--ease-out) 0.6s both;
}

.hero-detail-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
}

.hero-detail-item svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 44px;
  background: var(--gradient-cta);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 30px rgba(245, 146, 27, 0.35);
  animation: fadeSlideUp 0.8s var(--ease-out) 0.7s both;
}

.hero-cta:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 40px rgba(245, 146, 27, 0.5);
}

.hero-cta svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.hero-cta:hover svg {
  transform: translateX(4px);
}

/* Hero scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.5;
  animation: float 3s ease-in-out infinite;
}

.hero-scroll span {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--white);
}

.hero-scroll .scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--white) 0%, transparent 100%);
  animation: scrollDown 2s ease-in-out infinite;
}

/* ============================================
   SECTION: A CORRIDA
   ============================================ */
.section-corrida {
  padding: var(--section-padding);
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

.section-corrida::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(21, 179, 64, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.split-layout.reverse {
  direction: rtl;
}

.split-layout.reverse>* {
  direction: ltr;
}

.split-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.split-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.split-image:hover img {
  transform: scale(1.05);
}

.split-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.split-content {
  padding: 20px 0;
}

/* Info cards / stats */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.info-card {
  padding: 20px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition-normal);
}

.info-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(245, 146, 27, 0.2);
  transform: translateY(-4px);
}

.info-card .card-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.info-card .card-value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
}

.info-card .card-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* ============================================
   SECTION: PERCURSO
   ============================================ */
.section-percurso {
  padding: var(--section-padding);
  background: var(--bg-darker);
  position: relative;
}

.section-percurso::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-800), transparent);
}

.percurso-highlights {
  display: flex;
  gap: 24px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.percurso-highlight {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(245, 146, 27, 0.08);
  border: 1px solid rgba(245, 146, 27, 0.15);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.percurso-highlight:hover {
  background: rgba(245, 146, 27, 0.14);
  border-color: rgba(245, 146, 27, 0.3);
}

.percurso-highlight .ph-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-accent);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.percurso-highlight .ph-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.percurso-highlight .ph-text strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

/* ============================================
   SECTION: O HOSPITAL
   ============================================ */
.section-hospital {
  padding: var(--section-padding);
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

.section-hospital::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(245, 146, 27, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hospital-mission {
  display: flex;
  gap: 16px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.mission-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: rgba(21, 179, 64, 0.06);
  border-left: 3px solid var(--green-600);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  flex: 1;
  min-width: 200px;
}

.mission-item .mi-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.mission-item .mi-text {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.mission-item .mi-text strong {
  color: var(--white);
}

/* ============================================
   SECTION: INSCRIÇÃO (CTA)
   ============================================ */
.section-inscricao {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
  background: var(--gradient-green);
}

.section-inscricao::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.05) 1px, transparent 0);
  background-size: 30px 30px;
}

.section-inscricao::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 146, 27, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

.inscricao-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.inscricao-content .section-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}

.inscricao-content .section-text {
  max-width: 100%;
  margin: 0 auto 20px;
  color: rgba(255, 255, 255, 0.85);
}

/* Countdown */
.countdown {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 80px;
}

.countdown-value {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.countdown-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 6px;
}

.cta-btn-large {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 22px 56px;
  background: var(--white);
  color: var(--green-800);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.cta-btn-large:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.3);
}

.cta-btn-large svg {
  width: 22px;
  height: 22px;
  transition: transform var(--transition-fast);
}

.cta-btn-large:hover svg {
  transform: translateX(5px);
}

.inscricao-note {
  margin-top: 20px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   SECTION: KIT
   ============================================ */
.section-kit {
  padding: var(--section-padding);
  background: var(--bg-darker);
}

.kit-items-list {
  margin-top: 24px;
}

.kit-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.kit-item:last-child {
  border-bottom: none;
}

.kit-item .kit-check {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(21, 179, 64, 0.15);
  border-radius: var(--radius-sm);
  color: var(--green-400);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.kit-item .kit-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
}

/* ============================================
   SECTION: VÍDEOS
   ============================================ */
.section-videos {
  padding: var(--section-padding);
  background: var(--bg-dark);
}

.section-videos .section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-videos .section-text {
  max-width: 100%;
  margin: 0 auto;
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.video-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition-normal);
}

.video-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(245, 146, 27, 0.2);
  box-shadow: var(--shadow-strong);
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-card-title {
  padding: 16px 20px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
}

/* ============================================
   SECTION: PATROCINADORES
   ============================================ */
.section-patrocinadores {
  padding: var(--section-padding);
  background: var(--bg-darker);
}

.section-patrocinadores .section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-patrocinadores .section-text {
  max-width: 100%;
  margin: 0 auto;
}

/* --- Sponsor Tiers --- */
.sponsor-tier {
  margin-bottom: 48px;
}

.sponsor-tier:last-child {
  margin-bottom: 0;
}

.sponsor-tier-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  position: relative;
}

.sponsor-tier-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  border-radius: 1px;
}

.tier-diamante {
  color: #b9f2ff;
}

.tier-diamante::after {
  background: linear-gradient(90deg, transparent, #b9f2ff, transparent);
  width: 100px;
}

.tier-ouro {
  color: #FFD700;
}

.tier-ouro::after {
  background: linear-gradient(90deg, transparent, #FFD700, transparent);
  width: 80px;
}

.tier-prata {
  color: #C0C0C0;
}

.tier-prata::after {
  background: linear-gradient(90deg, transparent, #C0C0C0, transparent);
  width: 70px;
}

.tier-bronze {
  color: #CD7F32;
}

.tier-bronze::after {
  background: linear-gradient(90deg, transparent, #CD7F32, transparent);
  width: 70px;
}

.tier-apoio {
  color: var(--green-300);
}

.tier-apoio::after {
  background: linear-gradient(90deg, transparent, var(--green-300), transparent);
  width: 60px;
}

/* --- Sponsors Grid (base) --- */
.sponsors-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
  justify-content: center;
  align-items: stretch;
}

/* Tier specific max-widths */
.tier-grid-diamante {
  max-width: 780px;
}

.tier-grid-ouro {
}

.tier-grid-prata {
  max-width: 80%;
}

.tier-grid-bronze {
}

.tier-grid-apoio {
  max-width: 70%;
}

/* --- Sponsor Card (base) --- */
.sponsor-card {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.sponsor-card img {
  object-fit: contain;
  transition: all var(--transition-normal);
  filter: grayscale(100%) opacity(0.7);
}

.sponsor-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-green);
  border-color: var(--green-600);
}

.sponsor-card:hover img {
  filter: grayscale(0%) opacity(1);
}

/* Diamante — largest */
.sponsor-diamante {
  padding: 32px 28px;
  min-height: 120px;
  flex: 0 0 calc(33.333% - 14px);
}

.sponsor-diamante:hover {
  box-shadow: 0 0 30px rgba(185, 242, 255, 0.25);
  border-color: #b9f2ff;
}

/* Ouro */
.sponsor-ouro {
  padding: 28px 24px;
  min-height: 105px;
  flex: 0 0 calc(25% - 15px);
}

.sponsor-ouro:hover {
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.2);
  border-color: #FFD700;
}

/* Prata */
.sponsor-prata {
  padding: 28px 24px;
  min-height: 105px;
  flex: 0 0 calc(25% - 15px);
}

.sponsor-prata:hover {
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.2);
  border-color: #FFD700;
}

/* Bronze */
.sponsor-bronze {
  padding: 20px 16px;
  min-height: 85px;
  flex: 0 0 calc(20% - 16px);
}


.sponsor-bronze:hover {
  box-shadow: 0 0 20px rgba(205, 127, 50, 0.2);
  border-color: #CD7F32;
}

/* Apoio */
.sponsor-apoio {
  padding: 22px 18px;
  min-height: 90px;
  flex: 0 0 calc(25% - 15px);
}

.sponsor-apoio:hover {
  box-shadow: var(--shadow-glow-green);
  border-color: var(--green-600);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 40px 0;
  background: var(--dark-900);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.footer-dev {
  font-size: 0.85rem;
  color: var(--gray-500);
}

.footer-dev a {
  color: var(--accent);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.footer-dev a:hover {
  color: var(--accent-light);
}

/* ============================================
   KEYFRAMES
   ============================================ */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.5);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(-8px);
  }
}

@keyframes scrollDown {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }

  50.01% {
    transform: scaleY(1);
    transform-origin: bottom;
  }

  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split-layout.reverse {
    direction: ltr;
  }

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

  .sponsors-grid {
    justify-content: center;
  }
  .sponsor-diamante, .sponsor-ouro, .sponsor-prata, .sponsor-apoio {
    flex: 0 0 calc(33.333% - 14px);
  }
  .sponsor-bronze {
    flex: 0 0 calc(25% - 15px);
  }
  .tier-grid-prata, .tier-grid-apoio {
    max-width: 100%;
  }

  .info-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 70px 0;
  }

  /* Mobile navigation */
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--dark-800);
    backdrop-filter: var(--glass-blur);
    flex-direction: column;
    padding: 100px 32px 40px;
    gap: 4px;
    transition: right var(--transition-normal);
    border-left: 1px solid var(--glass-border);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-link {
    font-size: 1rem;
    padding: 14px 16px;
    width: 100%;
    border-radius: var(--radius-md);
  }

  .nav-link:hover,
  .nav-link.active {
    background: rgba(255, 255, 255, 0.06);
  }

  .nav-link.active::after {
    display: none;
  }

  /* Mobile overlay */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
  }

  .nav-overlay.active {
    display: block;
  }

  /* Sections */
  .hero-details {
    gap: 12px;
  }

  .hero-detail-item {
    font-size: 0.85rem;
  }

  .split-image img {
    height: 280px;
  }

  .info-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .info-card {
    padding: 14px 10px;
  }

  .info-card .card-value {
    font-size: 1.1rem;
  }

  .percurso-highlights {
    flex-direction: column;
  }

  .hospital-mission {
    flex-direction: column;
  }

  .videos-grid {
    grid-template-columns: 1fr;
  }

  .sponsors-grid {
    justify-content: center;
  }
  .sponsor-diamante, .sponsor-ouro, .sponsor-prata, .sponsor-bronze, .sponsor-apoio {
    flex: 0 0 calc(50% - 10px);
  }
  .tier-grid-prata, .tier-grid-apoio {
    max-width: 100%;
  }

  .countdown {
    gap: 12px;
  }

  .countdown-value {
    font-size: 2.2rem;
  }

  .countdown-item {
    min-width: 60px;
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.2rem;
  }

  .hero-cta {
    padding: 16px 36px;
    font-size: 1rem;
  }

  .hero-bg img {
    object-position: left 30%;
  }

  .cta-btn-large {
    padding: 18px 40px;
    font-size: 1.05rem;
  }

  .info-cards {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
  }

  .sponsors-grid {
    gap: 12px;
    justify-content: center;
  }
  .sponsor-diamante, .sponsor-ouro, .sponsor-prata, .sponsor-bronze, .sponsor-apoio {
    flex: 0 0 calc(50% - 6px);
  }
}

.mb-3 {
  margin-bottom: 30px;
}

.mt-3 {
  margin-top: 30px;
}