/* ============================================
   Eden Global Academy — Design System Tokens
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Source+Sans+3:ital,wght@0,400;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* ---- Color Palette ---- */
  --color-teal-900: #083A3C;
  --color-teal-800: #0A4E51;
  --color-teal-700: #0C6165;
  --color-teal-600: #0D7377;
  --color-teal-500: #14A3A8;
  --color-teal-200: #C6ECEE;
  --color-teal-100: #E6F7F8;
  --color-teal-50:  #F4FBFB;

  --color-gold-700: #8B6914;
  --color-gold-600: #A8831A;
  --color-gold-500: #D4A853;
  --color-gold-300: #E8CD94;
  --color-gold-100: #F7EFDA;

  --color-neutral-900: #1A1A2E;
  --color-neutral-800: #2D2D40;
  --color-neutral-700: #4A4A5A;
  --color-neutral-500: #8E8E9E;
  --color-neutral-300: #C4C4CC;
  --color-neutral-200: #E0E0E6;
  --color-neutral-100: #F0F0F2;
  --color-neutral-50:  #F8F8FA;

  --color-bg:           #FDFCF8;
  --color-surface:      #FFFFFF;
  --color-border:       #E8E4DE;

  --color-success:      #059669;
  --color-error:        #DC2626;

  /* ---- Typography ---- */
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:    'Source Sans 3', 'Segoe UI', Tahoma, Geneva, sans-serif;
  --font-mono:    'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;

  --text-xs:  0.75rem;
  --text-sm:  0.875rem;
  --text-base: 1rem;
  --text-lg:  1.125rem;
  --text-xl:  1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;
  --text-5xl: 3.25rem;

  --leading-tight: 1.15;
  --leading-snug:  1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.02em;
  --tracking-wide:  0.05em;
  --tracking-wider: 0.1em;

  /* ---- Spacing ---- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* ---- Radii ---- */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-sm:   0 1px 2px rgba(26, 26, 46, 0.06);
  --shadow-md:   0 4px 12px rgba(26, 26, 46, 0.08);
  --shadow-lg:   0 8px 30px rgba(26, 26, 46, 0.1);
  --shadow-xl:   0 16px 48px rgba(26, 26, 46, 0.12);
  --shadow-teal: 0 4px 20px rgba(13, 115, 119, 0.2);
  --shadow-gold: 0 4px 20px rgba(212, 168, 83, 0.25);

  /* ---- Transitions ---- */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ---- Container ---- */
  --container-max: 1200px;
  --container-narrow: 880px;
  --container-padding: var(--space-6);

  /* ---- Z-index layers ---- */
  --z-header: 100;
  --z-whatsapp: 200;
  --z-overlay: 300;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-neutral-800);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-teal-600);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-teal-700);
}

a:focus-visible {
  outline: 2px solid var(--color-teal-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

ul, ol {
  list-style: none;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* ---- Typography utilities ---- */

.heading-display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-neutral-900);
}

.heading-1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-4xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-neutral-900);
}

@media (min-width: 768px) {
  .heading-1 {
    font-size: var(--text-5xl);
  }
}

.heading-2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
  color: var(--color-neutral-900);
}

@media (min-width: 768px) {
  .heading-2 {
    font-size: var(--text-4xl);
  }
}

.heading-3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  color: var(--color-neutral-900);
}

.heading-4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  line-height: var(--leading-snug);
  color: var(--color-neutral-900);
}

.label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-teal-600);
}

/* ---- Container ---- */

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ---- Section spacing ---- */

.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
  }
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header .label {
  display: block;
  margin-bottom: var(--space-3);
}

.section-header .heading-2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-neutral-700);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  line-height: 1;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-teal-500);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-teal-600);
  color: var(--color-surface);
}

.btn-primary:hover {
  background-color: var(--color-teal-700);
  color: var(--color-surface);
  transform: translateY(-1px);
  box-shadow: var(--shadow-teal);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-teal-600);
  border: 2px solid var(--color-teal-200);
}

.btn-secondary:hover {
  border-color: var(--color-teal-500);
  background-color: var(--color-teal-50);
  transform: translateY(-1px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-gold-500), var(--color-gold-600));
  color: var(--color-surface);
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--color-gold-600), var(--color-gold-700));
  color: var(--color-surface);
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}

.btn-whatsapp {
  background-color: #25D366;
  color: #fff;
}

.btn-whatsapp:hover {
  background-color: #1DA851;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ---- Section backgrounds ---- */

.section-teal {
  background-color: var(--color-teal-100);
}

.section-gold {
  background: linear-gradient(135deg, var(--color-gold-100) 0%, var(--color-bg) 100%);
}

.section-dark {
  background-color: var(--color-neutral-900);
  color: var(--color-neutral-100);
}

.section-dark .heading-2,
.section-dark .heading-3,
.section-dark .label {
  color: var(--color-surface);
}

/* ---- Utility ---- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.text-teal {
  color: var(--color-teal-600);
}

.text-gold {
  color: var(--color-gold-500);
}

.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }