/* =============================================
   BASE.CSS — Soleil Consulting Group
   ============================================= */

/* Design Tokens */
:root {
  /* Type Scale */
  --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, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* 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;
  --space-32: 8rem;

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* ========================
   LIGHT MODE
   ======================== */
:root, [data-theme="light"] {
  --color-bg: #e8ecf3;
  --color-surface: #f5f7fc;
  --color-surface-2: #dde3ef;
  --color-surface-offset: #d4daea;
  --color-divider: #c8d1e4;
  --color-border: #b8c4d8;

  --color-text: #0f1929;
  --color-text-muted: #526070;
  --color-text-faint: #a0afc2;
  --color-text-inverse: #ffffff;

  /* Blue-slate primary — authoritative, precise */
  --color-primary: #1a56a0;
  --color-primary-hover: #13448a;
  --color-primary-active: #0d3470;
  --color-primary-highlight: #ddeaf8;

  --color-accent: #0e7a8c;
  --color-accent-hover: #0a5f6d;

  --shadow-sm: 0 1px 3px oklch(0.3 0.07 240 / 0.07);
  --shadow-md: 0 4px 16px oklch(0.3 0.07 240 / 0.09);
  --shadow-lg: 0 16px 40px oklch(0.3 0.07 240 / 0.11);
  --shadow-xl: 0 32px 80px oklch(0.3 0.07 240 / 0.15);
}

/* ========================
   DARK MODE
   ======================== */
[data-theme="dark"] {
  --color-bg: #111214;
  --color-surface: #16181b;
  --color-surface-2: #1d2025;
  --color-surface-offset: #1a1c20;
  --color-divider: #252830;
  --color-border: #2e3138;

  --color-text: #e8e8e6;
  --color-text-muted: #8a8b8e;
  --color-text-faint: #4a4c50;
  --color-text-inverse: #111214;

  --color-primary: #4d9de0;
  --color-primary-hover: #6aaceb;
  --color-primary-active: #84bcf0;
  --color-primary-highlight: #1e2d3d;

  --color-accent: #3bb0c5;
  --color-accent-hover: #5ecada;

  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.45);
  --shadow-xl: 0 32px 80px oklch(0 0 0 / 0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #111214;
    --color-surface: #16181b;
    --color-surface-2: #1d2025;
    --color-surface-offset: #1a1c20;
    --color-divider: #252830;
    --color-border: #2e3138;
    --color-text: #e8e8e6;
    --color-text-muted: #8a8b8e;
    --color-text-faint: #4a4c50;
    --color-text-inverse: #111214;
    --color-primary: #4d9de0;
    --color-primary-hover: #6aaceb;
    --color-primary-active: #84bcf0;
    --color-primary-highlight: #1e2d3d;
    --color-accent: #3bb0c5;
    --color-accent-hover: #5ecada;
    --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
    --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.45);
    --shadow-xl: 0 32px 80px oklch(0 0 0 / 0.55);
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  text-size-adjust: none;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.25s ease, color 0.25s ease;
}

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

ul[role="list"], ol[role="list"] { list-style: none; }

input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.1;
  font-family: var(--font-display);
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

::selection {
  background: color-mix(in oklab, var(--color-primary) 25%, transparent);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

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

a, button, [role="button"] {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    opacity var(--transition-interactive);
}

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

/* ========================
   LAYOUT UTILITIES
   ======================== */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (max-width: 768px) {
  .container, .container--narrow {
    padding-inline: var(--space-5);
  }
}