/* ============================================================
   base.css — Design Tokens & Reset for Anthem ES
   Custom warm palette: orange primary, blue secondary, green accent
   ============================================================ */

:root {
  /* Type Scale (fluid) */
  --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);

  /* 4px Spacing System */
  --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;

  /* Font Families */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

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

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

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

/* ---- LIGHT MODE (default) ---- */
:root, [data-theme="light"] {
  /* Surfaces — warm off-white */
  --color-bg:              #FAF8F5;
  --color-surface:         #FFFFFF;
  --color-surface-2:       #F5F2ED;
  --color-surface-offset:  #F0EDE8;
  --color-surface-offset-2:#E8E4DE;
  --color-surface-dynamic: #DDD8D0;
  --color-divider:         #D4CFC6;
  --color-border:          #C8C2B8;

  /* Text */
  --color-text:            #1C1917;
  --color-text-muted:      #6B6560;
  --color-text-faint:      #A39E96;
  --color-text-inverse:    #FAF8F5;

  /* Primary — Deep Orange */
  --color-primary:         #D95A2B;
  --color-primary-hover:   #BF4A20;
  --color-primary-active:  #9E3A18;
  --color-primary-highlight: rgba(217, 90, 43, 0.12);

  /* Secondary — Deep Blue */
  --color-secondary:       #1A4B7A;
  --color-secondary-hover: #153D65;
  --color-secondary-active:#0F2F50;
  --color-secondary-highlight: rgba(26, 75, 122, 0.12);

  /* Accent — Safety Green */
  --color-accent:          #4CAF50;
  --color-accent-hover:    #3D9140;
  --color-accent-active:   #2E7D32;
  --color-accent-highlight: rgba(76, 175, 80, 0.12);

  /* Semantic */
  --color-success:         #4CAF50;
  --color-warning:         #E67E22;
  --color-error:           #C0392B;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(28, 25, 23, 0.06);
  --shadow-md: 0 4px 12px rgba(28, 25, 23, 0.08);
  --shadow-lg: 0 12px 32px rgba(28, 25, 23, 0.12);
}

/* ---- DARK MODE ---- */
[data-theme="dark"] {
  --color-bg:              #161412;
  --color-surface:         #1E1B18;
  --color-surface-2:       #262220;
  --color-surface-offset:  #1E1B18;
  --color-surface-offset-2:#2A2623;
  --color-surface-dynamic: #332F2B;
  --color-divider:         #3A3632;
  --color-border:          #4A4540;

  --color-text:            #E8E4DE;
  --color-text-muted:      #9A9490;
  --color-text-faint:      #6B6560;
  --color-text-inverse:    #1C1917;

  --color-primary:         #E8764A;
  --color-primary-hover:   #F08A60;
  --color-primary-active:  #D95A2B;
  --color-primary-highlight: rgba(232, 118, 74, 0.15);

  --color-secondary:       #4A8CC7;
  --color-secondary-hover: #5FA0D8;
  --color-secondary-active:#3A7AB3;
  --color-secondary-highlight: rgba(74, 140, 199, 0.15);

  --color-accent:          #66BB6A;
  --color-accent-hover:    #81C784;
  --color-accent-active:   #4CAF50;
  --color-accent-highlight: rgba(102, 187, 106, 0.15);

  --color-success:         #66BB6A;
  --color-warning:         #F0A050;
  --color-error:           #E05A4F;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #161412;
    --color-surface:         #1E1B18;
    --color-surface-2:       #262220;
    --color-surface-offset:  #1E1B18;
    --color-surface-offset-2:#2A2623;
    --color-surface-dynamic: #332F2B;
    --color-divider:         #3A3632;
    --color-border:          #4A4540;

    --color-text:            #E8E4DE;
    --color-text-muted:      #9A9490;
    --color-text-faint:      #6B6560;
    --color-text-inverse:    #1C1917;

    --color-primary:         #E8764A;
    --color-primary-hover:   #F08A60;
    --color-primary-active:  #D95A2B;
    --color-primary-highlight: rgba(232, 118, 74, 0.15);

    --color-secondary:       #4A8CC7;
    --color-secondary-hover: #5FA0D8;
    --color-secondary-active:#3A7AB3;
    --color-secondary-highlight: rgba(74, 140, 199, 0.15);

    --color-accent:          #66BB6A;
    --color-accent-hover:    #81C784;
    --color-accent-active:   #4CAF50;
    --color-accent-highlight: rgba(102, 187, 106, 0.15);

    --color-success:         #66BB6A;
    --color-warning:         #F0A050;
    --color-error:           #E05A4F;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
  }
}

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

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: var(--space-16);
}

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);
}

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: 1.15; }
p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

::selection {
  background: rgba(217, 90, 43, 0.25);
  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;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }

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