/* ============================================
   AnimaRef Design System
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand colors */
  --brand-red: #D05E59;
  --brand-gold: #F4BF6B;
  --brand-teal: #6EC3B6;
  --brand-gold-secondary: #F4E472;

  /* Light mode */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: rgba(0, 0, 0, 0.06);
  --nav-bg: rgba(255, 255, 255, 0.65);
  --card-hover-shadow: rgba(0, 0, 0, 0.1);
  --divider: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --text-primary: #e8e8f0;
  --text-secondary: #a0a0b8;
  --glass-bg: rgba(30, 30, 50, 0.5);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.2);
  --nav-bg: rgba(15, 15, 26, 0.75);
  --card-hover-shadow: rgba(0, 0, 0, 0.3);
  --divider: rgba(255, 255, 255, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "SF Pro Display", "SF Pro Text", "Helvetica Neue",
    system-ui, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- Background Gradient --- */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(208, 94, 89, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(110, 195, 182, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(244, 191, 107, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse at 20% 20%, rgba(208, 94, 89, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(110, 195, 182, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(244, 191, 107, 0.08) 0%, transparent 50%);
}

/* --- Glass Effect --- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 4px 24px var(--glass-shadow);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
  transition: background 0.3s ease;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-brand img {
  width: 36px;
  height: 36px;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: var(--glass-bg);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  border-color: var(--brand-teal);
  box-shadow: 0 2px 12px rgba(110, 195, 182, 0.2);
}

.lang-btn {
  width: auto;
  padding: 0 14px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* --- Main Content --- */
main {
  position: relative;
  z-index: 1;
  padding-top: 64px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Hero Section --- */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
}

.hero-logo {
  width: 140px;
  height: 140px;
  animation: float 6s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-top: 32px;
  background: linear-gradient(135deg, var(--brand-red), var(--brand-gold), var(--brand-teal));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--text-secondary);
  margin-top: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badge {
  margin-top: 36px;
  display: inline-block;
}

.hero-badge img {
  height: 54px;
  transition: transform 0.2s ease;
}

.hero-badge:hover img {
  transform: scale(1.05);
}

/* --- Features Section --- */
.features {
  padding: 60px 24px 80px;
}

.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--card-hover-shadow);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  display: block;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- CTA Section --- */
.cta {
  padding: 40px 24px 80px;
}

.cta-card {
  max-width: 700px;
  margin: 0 auto;
  padding: 48px 40px;
  text-align: center;
}

.cta-card h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-card p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 1.05rem;
}

.cta-card .hero-badge {
  margin-top: 0;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--divider);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--brand-teal);
}

/* --- Privacy Page --- */
.privacy-content {
  max-width: 800px;
  margin: 40px auto 80px;
  padding: 48px 40px;
}

.privacy-content h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--brand-red), var(--brand-gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.privacy-content .privacy-updated {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.privacy-content h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--brand-teal);
}

.privacy-content p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.privacy-content ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

.privacy-content li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.privacy-content a {
  color: var(--brand-teal);
  text-decoration: none;
}

.privacy-content a:hover {
  text-decoration: underline;
}

/* --- Animations --- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero-logo {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }

  .feature-card {
    transition: none;
  }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero {
    padding: 60px 20px 40px;
  }

  .hero-logo {
    width: 110px;
    height: 110px;
    border-radius: 26px;
  }

  .hero-title {
    margin-top: 24px;
  }

  .features {
    padding: 40px 16px 60px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cta-card {
    padding: 36px 24px;
  }

  .privacy-content {
    padding: 32px 24px;
    margin: 24px 16px 60px;
  }

  .nav-inner {
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  .hero-logo {
    width: 90px;
    height: 90px;
    border-radius: 22px;
  }

  .nav-brand span {
    font-size: 1.1rem;
  }

  .feature-card {
    padding: 22px;
  }
}

/* --- Utility --- */
[data-lang-en] { display: none; }
[data-lang-pt] { display: none; }

[data-active-lang="en"] [data-lang-en] { display: revert; }
[data-active-lang="pt"] [data-lang-pt] { display: revert; }

/* Fix for inline elements that should stay inline */
h1 [data-lang-en], h1 [data-lang-pt],
h2 [data-lang-en], h2 [data-lang-pt],
h3 [data-lang-en], h3 [data-lang-pt],
p [data-lang-en], p [data-lang-pt],
a [data-lang-en], a [data-lang-pt],
span [data-lang-en], span [data-lang-pt],
li [data-lang-en], li [data-lang-pt] {
  display: none;
}

[data-active-lang="en"] h1 [data-lang-en],
[data-active-lang="en"] h2 [data-lang-en],
[data-active-lang="en"] h3 [data-lang-en],
[data-active-lang="en"] p [data-lang-en],
[data-active-lang="en"] a [data-lang-en],
[data-active-lang="en"] span [data-lang-en],
[data-active-lang="en"] li [data-lang-en] {
  display: inline;
}

[data-active-lang="pt"] h1 [data-lang-pt],
[data-active-lang="pt"] h2 [data-lang-pt],
[data-active-lang="pt"] h3 [data-lang-pt],
[data-active-lang="pt"] p [data-lang-pt],
[data-active-lang="pt"] a [data-lang-pt],
[data-active-lang="pt"] span [data-lang-pt],
[data-active-lang="pt"] li [data-lang-pt] {
  display: inline;
}

/* Block-level lang elements */
.privacy-content > [data-lang-en],
.privacy-content > [data-lang-pt],
div[data-lang-en],
div[data-lang-pt],
section[data-lang-en],
section[data-lang-pt] {
  display: none;
}

[data-active-lang="en"] .privacy-content > [data-lang-en],
[data-active-lang="en"] div[data-lang-en],
[data-active-lang="en"] section[data-lang-en] {
  display: block;
}

[data-active-lang="pt"] .privacy-content > [data-lang-pt],
[data-active-lang="pt"] div[data-lang-pt],
[data-active-lang="pt"] section[data-lang-pt] {
  display: block;
}