/* ============================================
   OLIVER SIGNORINI — Global Styles
   Ocean-inspired, typography-forward
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Archivo:wght@300;400;500;600;700;800;900&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Ocean Palette */
  --bg-primary: #FAFBFD;
  --bg-card: #F0F4F8;
  --bg-highlight: #E8F4F8;
  --accent-primary: #1A6B8A;
  --accent-secondary: #2D96B4;
  --accent-light: #E8F4F8;
  --accent-warm: #D4956A;
  --text-primary: #1E2A35;
  --text-secondary: #5A6E7F;
  --text-muted: #8A9BAD;
  --border-light: #E2E8F0;
  --border-medium: #D6DEE8;
  --white: #FFFFFF;
  --black: #0A1420;

  /* Typography Scale (fluid) */
  --font-display: 'Archivo', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.4rem + 2.3vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.6rem + 3.2vw, 3.5rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
  --text-hero: clamp(3.5rem, 2rem + 7vw, 7rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-section: clamp(5rem, 3rem + 5vw, 8rem);

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 720px;
  --max-width-wide: 1400px;
  --nav-height: 72px;
  --border-radius: 8px;
  --border-radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(26, 107, 138, 0.06);
  --shadow-md: 0 4px 12px rgba(26, 107, 138, 0.08);
  --shadow-lg: 0 8px 30px rgba(26, 107, 138, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index scale */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-nav: 30;
  --z-overlay: 40;
  --z-modal: 50;
}

/* --- Ocean Canvas Background --- */
#hero-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  z-index: 0;
}

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

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

a:hover {
  color: var(--accent-secondary);
}

a:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

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

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

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

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); font-weight: 900; letter-spacing: -0.03em; }
h2 { font-size: var(--text-4xl); font-weight: 800; }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: 1em;
  max-width: 65ch;
}

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

.text-secondary {
  color: var(--text-secondary);
}

.text-muted {
  color: var(--text-muted);
}

.text-accent {
  color: var(--accent-primary);
}

.text-warm {
  color: var(--accent-warm);
}

strong, b {
  font-weight: 600;
}

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

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

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

.section {
  padding: var(--space-section) 0;
}

.section--alt {
  background-color: var(--bg-card);
}

/* --- Reveal Animation Classes --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- 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;
  }

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

/* --- Responsive Base --- */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }

  :root {
    --nav-height: 64px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }
}