@import url("https://fonts.googleapis.com/css2?family=DM+Serif+Display:wght@400;500;600;700&family=Outfit:wght@400;500;600&display=swap");

:root {
  /* Colors (OKLCH) */
  --color-primary: oklch(0.371 0.072 168.5);
  --color-primary-foreground: oklch(1 0 263.3);
  --color-cta: oklch(0.629 0.262 341.1);
  --color-cta-foreground: oklch(0 0 0);
  --color-cta-hover: oklch(0.571 0.237 340.9);
  --color-background: oklch(0.993 0.001 201.3);
  --color-foreground: oklch(0.199 0.008 182.2);
  --color-muted: oklch(0.971 0.002 167);
  --color-muted-foreground: oklch(0.518 0.013 176.1);
  --color-surface: oklch(1 0 263.3);
  --color-surface-elevated: oklch(1 0 263.3);
  --color-border: oklch(0.912 0.006 183.8);
  --color-ring: oklch(0.371 0.072 168.5);
  --color-success: oklch(0.673 0.176 150.8);
  --color-error: oklch(0.536 0.204 27.7);

  /* Accent Section Tokens */
  --color-accent-bg: oklch(0.371 0.072 168.5);
  --color-accent-text: oklch(1 0 263.3);
  --color-accent-muted: oklch(0.776 0.143 170);
  --color-accent-surface: oklch(0.29 0.055 169.7);
  --color-accent-border: oklch(0.201 0.032 173.6);

  /* Typography */
  --font-heading: "DM Serif Display", Georgia, serif;
  --font-body: "Outfit", system-ui, sans-serif;

  /* Animation Timing */
  --duration-fast: 0.15s;
  --duration-normal: 0.25s;
  --duration-slow: 0.5s;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0 0 / 0.05);
  --shadow-md:
    0 4px 6px -1px oklch(0.2 0 0 / 0.07), 0 2px 4px -2px oklch(0.2 0 0 / 0.07);
  --shadow-lg:
    0 10px 15px -3px oklch(0.2 0 0 / 0.1), 0 4px 6px -4px oklch(0.2 0 0 / 0.1);
  --shadow-glow: 0 0 40px
    color-mix(in oklch, var(--color-primary) 30%, transparent);
  --shadow-cta-glow: 0 0 30px
    color-mix(in oklch, var(--color-cta) 40%, transparent);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-foreground);
  background: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp var(--duration-normal) var(--ease-out) forwards;
}

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

.delay-100 {
  animation-delay: 100ms;
}
.delay-200 {
  animation-delay: 200ms;
}
.delay-300 {
  animation-delay: 300ms;
}
.delay-400 {
  animation-delay: 400ms;
}
.delay-500 {
  animation-delay: 500ms;
}

.section-accent {
  background-color: var(--color-accent-bg);
  color: var(--color-accent-text);
}

.section-accent h1,
.section-accent h2,
.section-accent h3 {
  color: var(--color-accent-text);
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

@media (min-width: 768px) {
  .section {
    padding: 8rem 0;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-cta);
  color: var(--color-cta-foreground);
  box-shadow: var(--shadow-cta-glow);
}

.btn-primary:hover {
  background: var(--color-cta-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  border: 2px solid var(--color-border);
  color: var(--color-foreground);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

::selection {
  background: var(--color-primary);
  color: white;
}