/* === 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, 1.4rem + 4vw, 4.5rem);

  /* Spacing 4px base */
  --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;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;

  /* Transitions */
  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 1100px;
  --content-wide: 1280px;

  /* Fonts */
  --font-display: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
}

/* === LIGHT THEME (default) === */
:root,
[data-theme='light'] {
  --color-bg: #F5F1EB;             /* warm papery off-white */
  --color-surface: #FBF8F2;
  --color-surface-2: #FFFFFF;
  --color-surface-offset: #ECE6DC;
  --color-divider: #DCD4C7;
  --color-border: #C7BFB1;

  --color-text: #1F2933;           /* deep slate-anthrazit */
  --color-text-muted: #5B6770;
  --color-text-faint: #8E9AA3;
  --color-text-inverse: #FBF8F2;

  --color-primary: #1F2933;        /* primary = anthrazit (used as confident UI base) */
  --color-primary-hover: #2B3744;

  --color-accent: #E26F3A;         /* werkzeug-orange */
  --color-accent-hover: #C75A28;
  --color-accent-soft: #F5DCC9;

  /* CTA / dark-block tokens — stay dark in BOTH themes for buttons,
     newsletter card, etc. so the brand block reads consistently. */
  --color-cta-bg: #1F2933;
  --color-cta-bg-hover: #2B3744;
  --color-cta-text: #F5F1EB;
  --color-cta-text-muted: rgba(245, 241, 235, 0.65);
  --color-cta-text-faint: rgba(245, 241, 235, 0.45);

  --shadow-sm: 0 1px 2px rgba(31, 41, 51, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 41, 51, 0.08);
  --shadow-lg: 0 24px 60px rgba(31, 41, 51, 0.14);
}

/* === DARK THEME === */
[data-theme='dark'] {
  --color-bg: #15191E;
  --color-surface: #1B2027;
  --color-surface-2: #20262E;
  --color-surface-offset: #262D36;
  --color-divider: #2D353F;
  --color-border: #3A4452;

  --color-text: #E4E1DA;
  --color-text-muted: #9AA3AE;
  --color-text-faint: #6B7480;
  --color-text-inverse: #15191E;

  --color-primary: #E4E1DA;
  --color-primary-hover: #FFFFFF;

  --color-accent: #F08654;
  --color-accent-hover: #FFA174;
  --color-accent-soft: #4A2E20;

  /* CTA tokens in dark mode: slightly lifted dark instead of light text. */
  --color-cta-bg: #0E1116;
  --color-cta-bg-hover: #181D24;
  --color-cta-text: #F5F1EB;
  --color-cta-text-muted: rgba(245, 241, 235, 0.65);
  --color-cta-text-faint: rgba(245, 241, 235, 0.45);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #15191E;
    --color-surface: #1B2027;
    --color-surface-2: #20262E;
    --color-surface-offset: #262D36;
    --color-divider: #2D353F;
    --color-border: #3A4452;
    --color-text: #E4E1DA;
    --color-text-muted: #9AA3AE;
    --color-text-faint: #6B7480;
    --color-text-inverse: #15191E;
    --color-primary: #E4E1DA;
    --color-primary-hover: #FFFFFF;
    --color-accent: #F08654;
    --color-accent-hover: #FFA174;
    --color-accent-soft: #4A2E20;
    --color-cta-bg: #0E1116;
    --color-cta-bg-hover: #181D24;
    --color-cta-text: #F5F1EB;
    --color-cta-text-muted: rgba(245, 241, 235, 0.65);
    --color-cta-text-faint: rgba(245, 241, 235, 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;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  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 {
  font-family: var(--font-display);
  font-weight: 500;
  text-wrap: balance;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

p, li, figcaption { text-wrap: pretty; max-width: 70ch; }

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

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

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

a {
  color: inherit;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 3px;
}

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);
}

@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;
  }
}

.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;
}

.container {
  max-width: var(--content-default);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-6);
}
@media (min-width: 640px) {
  .container { padding: 0 var(--space-8); }
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  font-weight: 600;
}
.eyebrow-inverse { color: var(--color-accent); }

.section-title {
  font-size: var(--text-xl);
  font-weight: 500;
  margin-top: var(--space-3);
  margin-bottom: var(--space-6);
}