/* ==================== */
/* CSS Custom Properties */
/* ==================== */

:root {
  /* Brand Colors */
  --color-primary: oklch(0.7604 0.1741 129.85);
  --color-secondary: oklch(0.6693 0.0881 226.95);
  --color-accent: oklch(0.5168 0.2151 321.24);
  --color-bg: white;
  --color-text: oklch(0.2645 0.0323 263.78);
  
  /* Semantic Colors */
  --color-text-muted: oklch(0.4 0.02 263.78);
  --color-border: oklch(0.9 0.01 263.78);
  
  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --border-radius: 0.25rem;
}

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

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

* {
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

/* ==================== */
/* Typography */
/* ==================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
  margin-bottom: var(--space-md);
  max-width: 65ch;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

strong {
  font-weight: 600;
  color: var(--color-text);
}

/* ==================== */
/* Layout Utilities */
/* ==================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container-narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

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

/* ==================== */
/* Button Component */
/* ==================== */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: oklch(0.8 0.18 129.85);
  border-color: oklch(0.8 0.18 129.85);
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
}

/* ==================== */
/* Form Elements */
/* ==================== */

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 0.875rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
}

/* ==================== */
/* Accessibility */
/* ==================== */

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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