/* ─────────────────────────────────────────────────────────────
   BETI · Design Tokens (Cream + Dusty Blue + Coral)
   ───────────────────────────────────────────────────────────── */

:root,
[data-theme="light"] {
  /* Surfaces — warm cream (PDF page background) */
  --color-bg:               #F4EFE7;
  --color-surface:          #FAF6EE;
  --color-surface-2:        #FFFCF6;
  --color-surface-offset:   #ECE6DA;
  --color-surface-offset-2: #E1DACB;
  --color-surface-dynamic:  #D6CFBF;
  --color-divider:          #DDD5C4;
  --color-border:           #C8BEA8;

  /* Dusty blue secondary surface (the soft circle / hero halo) */
  --color-bluewash:         #DCE4EE;
  --color-bluewash-strong:  #C4D0E0;

  /* Text — deep navy */
  --color-text:         #15243F;
  --color-text-muted:   #5C6A82;
  --color-text-faint:   #99A2B3;
  --color-text-inverse: #FAF6EE;

  /* Primary CTA / dark surface — deep navy */
  --color-navy:           #15243F;
  --color-navy-hover:     #1F3257;
  --color-navy-active:    #0E1A30;

  /* Coral / tangerine accent (the highlighted line + "program.") */
  --color-coral:          #E0683A;
  --color-coral-hover:    #C9542A;
  --color-coral-active:   #A8431E;
  --color-coral-soft:     #F1C7B0;

  /* Dusty blue used for soft chips & feature icon backgrounds */
  --color-primary:           #6B8AA8;
  --color-primary-hover:     #547094;
  --color-primary-highlight: #DCE4EE;

  --color-success: #5C8C6F;
  --color-error:   #B0556A;

  /* Radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.875rem;
  --radius-xl:   1.25rem;
  --radius-full: 9999px;

  /* 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(2.25rem, 1rem + 3.6vw, 4rem);

  /* 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;

  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px  rgba(21, 36, 63, 0.06);
  --shadow-md: 0 6px 20px rgba(21, 36, 63, 0.08);
  --shadow-lg: 0 18px 48px rgba(21, 36, 63, 0.12);

  --content-narrow:  640px;
  --content-default: 1040px;
  --content-wide:    1200px;

  --font-display: 'General Sans', 'Inter', system-ui, sans-serif;
  --font-body:    'Satoshi', 'Inter', system-ui, sans-serif;
}

/* DARK MODE — moonlit navy */
[data-theme="dark"] {
  --color-bg:               #0F1726;
  --color-surface:          #142035;
  --color-surface-2:        #182742;
  --color-surface-offset:   #121C30;
  --color-surface-offset-2: #1A2740;
  --color-surface-dynamic:  #25334F;
  --color-divider:          #1F2C45;
  --color-border:           #2E3D5C;

  --color-bluewash:         #233252;
  --color-bluewash-strong:  #2E4068;

  --color-text:         #ECE6DA;
  --color-text-muted:   #9AA5BC;
  --color-text-faint:   #5E6B82;
  --color-text-inverse: #0F1726;

  --color-navy:           #ECE6DA;          /* invert: light bg button */
  --color-navy-hover:     #FFFCF6;
  --color-navy-active:    #D6CFBF;

  --color-coral:          #F08355;
  --color-coral-hover:    #FF9870;
  --color-coral-active:   #FFB48F;
  --color-coral-soft:     #4A2A1E;

  --color-primary:           #97B3CE;
  --color-primary-hover:     #B4CBE1;
  --color-primary-highlight: #233252;

  --shadow-sm: 0 1px 2px  rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:               #0F1726;
    --color-surface:          #142035;
    --color-surface-2:        #182742;
    --color-surface-offset:   #121C30;
    --color-surface-offset-2: #1A2740;
    --color-surface-dynamic:  #25334F;
    --color-divider:          #1F2C45;
    --color-border:           #2E3D5C;
    --color-bluewash:         #233252;
    --color-bluewash-strong:  #2E4068;
    --color-text:         #ECE6DA;
    --color-text-muted:   #9AA5BC;
    --color-text-faint:   #5E6B82;
    --color-text-inverse: #0F1726;
    --color-navy:           #ECE6DA;
    --color-navy-hover:     #FFFCF6;
    --color-navy-active:    #D6CFBF;
    --color-coral:          #F08355;
    --color-coral-hover:    #FF9870;
    --color-coral-active:   #FFB48F;
    --color-coral-soft:     #4A2A1E;
    --color-primary:           #97B3CE;
    --color-primary-hover:     #B4CBE1;
    --color-primary-highlight: #233252;
  }
}

/* ─────────────────────────────────────────────────────────────
   Base reset
   ───────────────────────────────────────────────────────────── */

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  transition: background 250ms ease, color 250ms ease;
}

img, picture, video, 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: 1.08;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.025em;
}

p, li { text-wrap: pretty; max-width: 68ch; }

::selection { background: var(--color-coral-soft); color: var(--color-text); }

:focus-visible {
  outline: 2px solid var(--color-coral);
  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; }
a { color: inherit; text-decoration: none; }

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