/* ===================================================
   CORE.CSS - Design System Dra. Dani Goe
   Design tokens, reset, tipografia, layout utilities
   =================================================== */

/* ============ Design Tokens ============ */
:root {
  /* Brand */
  --gold: #daa520;
  --gold-dark: #b8860b;
  --gold-light: #f0d060;
  --gold-gradient: linear-gradient(135deg, #daa520, #b8860b);

  /* Surfaces */
  --bg-primary: #faf9f7;
  --bg-secondary: #f5f3f0;
  --bg-dark: #2c2c2c;
  --bg-darker: #1a1a1a;
  --white: #ffffff;
  --divider: #f0f0f0;

  /* Text */
  --text-primary: #2c2c2c;
  --text-secondary: #6b6b6b;
  --text-light: #999;
  --text-on-dark: #f5f3f0;

  /* Status */
  --success: #27ae60;
  --urgency: #e74c3c;

  /* Spacing */
  --section-py: clamp(4rem, 8vw, 8rem);
  --container-max: 1200px;
  --container-px: clamp(1rem, 4vw, 2rem);

  /* Effects */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --radius-full: 50px;
  --shadow-card: 0 15px 40px rgba(0,0,0,0.08);
  --shadow-elevated: 0 25px 60px rgba(0,0,0,0.12);
  --shadow-gold: 0 8px 25px rgba(218,165,32,0.3);
  --shadow-gold-hover: 0 12px 35px rgba(218,165,32,0.4);
  --blur-glass: blur(20px);

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.3s;
  --duration-normal: 0.6s;
  --duration-slow: 1.2s;

  /* Header */
  --header-height: 80px;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--header-height);
}

/* Lenis overrides native scroll */
html.lenis, html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* ============ Typography ============ */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 600;
}

h4 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
}

p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.text-gold { color: var(--gold); }
.text-center { text-align: center; }
.text-left { text-align: left; }

.subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
}

.label-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(218, 165, 32, 0.1);
  color: var(--gold-dark);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============ Layout ============ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.container--narrow {
  max-width: 900px;
}

.container--wide {
  max-width: 1400px;
}

section {
  padding: var(--section-py) 0;
  position: relative;
}

/* Grid System */
.grid {
  display: grid;
  gap: 30px;
}

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

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

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--center {
  align-items: center;
}

.flex {
  display: flex;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

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

.flex--wrap {
  flex-wrap: wrap;
}

.flex--col {
  flex-direction: column;
}

.gap-sm { gap: 10px; }
.gap-md { gap: 20px; }
.gap-lg { gap: 40px; }
.gap-xl { gap: 60px; }

/* Section backgrounds */
.bg-white { background: var(--white); }
.bg-primary { background: var(--bg-primary); }
.bg-secondary { background: var(--bg-secondary); }
.bg-dark {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}
.bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--white); }
.bg-dark p { color: rgba(255,255,255,0.8); }

.bg-gradient {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* Section decorative glow */
.section-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 20%, rgba(218, 165, 32, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
  border-radius: var(--radius-full);
  transition: transform var(--duration-fast) var(--ease-out-quart),
              box-shadow var(--duration-fast) var(--ease-out-quart),
              background var(--duration-fast) ease;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}

.btn i {
  font-size: 1.15rem;
}

.btn--primary {
  background: var(--gold-gradient);
  color: #fff;
  padding: 18px 40px;
  box-shadow: var(--shadow-gold);
  border: none;
}

a.btn--primary,
.article-content a.btn--primary {
  color: #fff;
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold-hover);
}

.btn--secondary {
  background: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
  padding: 16px 36px;
}

.btn--secondary:hover {
  background: var(--gold);
  color: var(--white);
}

.btn--ghost {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 16px 36px;
  backdrop-filter: var(--blur-glass);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.5);
}

.btn--sm {
  padding: 12px 24px;
  font-size: 0.95rem;
}

.btn--lg {
  padding: 22px 48px;
  font-size: 1.15rem;
}

/* ============ Utility ============ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.overflow-hidden { overflow: hidden; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: 10px; }
.mb-md { margin-bottom: 20px; }
.mb-lg { margin-bottom: 40px; }
.mb-xl { margin-bottom: 60px; }
.mt-lg { margin-top: 40px; }
.mt-xl { margin-top: 60px; }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }
}

@media (max-width: 768px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .hide-mobile { display: none !important; }
  .show-mobile { display: block !important; }
}

@media (max-width: 480px) {
  .btn--primary,
  .btn--secondary {
    padding: 14px 28px;
    font-size: 0.95rem;
    width: 100%;
  }
}

/* ============ Reduced Motion ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}