/* ========================================================
   ATP Remodeling — Design Tokens & Base Styles
   ======================================================== */

:root,
[data-theme='light'] {
  /* Type scale (fluid clamp) */
  --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, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);
  --text-hero: clamp(2.75rem, 0.8rem + 6vw, 6rem);

  /* 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;

  /* Surfaces — warm ivory/stone, luxury construction feel */
  --color-bg: #faf9f6;
  --color-surface: #ffffff;
  --color-surface-2: #f4f2ed;
  --color-surface-offset: #ece8e0;
  --color-surface-offset-2: #e2ddd2;
  --color-divider: #ddd7c9;
  --color-border: #d2ccbc;

  /* Text */
  --color-text: #16150f;
  --color-text-muted: #5c584c;
  --color-text-faint: #96907e;
  --color-text-inverse: #faf9f6;

  /* Always-light text for permanently dark surfaces (hero overlays, ink bands,
     footer, filter active state). This does NOT flip with theme, unlike
     --color-text-inverse, because the surfaces it sits on never flip either. */
  --color-on-dark: #faf9f6;

  /* Primary Accent — Gold (from logo) */
  --color-primary: #a3801f;
  --color-primary-hover: #8a6c19;
  --color-primary-active: #6f5613;
  --color-primary-highlight: #ece2c4;

  /* Ink / Black (from logo houses) */
  --color-ink: #0c0b09;
  --color-ink-2: #17150f;

  /* Silver (secondary accent) */
  --color-silver: #9a9a9a;
  --color-silver-light: #c9c9c9;

  /* Status */
  --color-success: #43683a;
  --color-error: #a13636;

  --radius-sm: 0.25rem;
  --radius-md: 0.4rem;
  --radius-lg: 0.6rem;
  --radius-full: 9999px;

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

  --shadow-sm: 0 1px 2px rgba(12, 11, 9, 0.08);
  --shadow-md: 0 6px 20px rgba(12, 11, 9, 0.1);
  --shadow-lg: 0 20px 48px rgba(12, 11, 9, 0.16);

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1240px;
  --content-full: 100%;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Public Sans', 'Helvetica Neue', sans-serif;
}

[data-theme='dark'] {
  --color-bg: #0e0d0b;
  --color-surface: #161512;
  --color-surface-2: #1b1a16;
  --color-surface-offset: #201f1a;
  --color-surface-offset-2: #27251f;
  --color-divider: #2c2a24;
  --color-border: #383528;

  --color-text: #f2efe6;
  --color-text-muted: #b3ab97;
  --color-text-faint: #756e5c;
  --color-text-inverse: #16150f;

  --color-primary: #d4af37;
  --color-primary-hover: #e6c454;
  --color-primary-active: #f0d374;
  --color-primary-highlight: #3a3320;

  --color-ink: #050505;
  --color-ink-2: #0c0b09;

  --color-silver: #b7b7b7;
  --color-silver-light: #d8d8d8;

  --color-success: #7fae6c;
  --color-error: #d47d7d;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.55);
}

/* 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;
  hanging-punctuation: first last;
  scroll-padding-top: 88px;
}

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 {
  text-wrap: balance;
  line-height: 1.12;
  font-family: var(--font-display);
  font-weight: 600;
}

p,
li,
figcaption {
  text-wrap: pretty;
}

::selection {
  background: color-mix(in oklab, var(--color-primary) 30%, 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;
    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'],
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;
}

/* ============ Layout utilities ============ */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section--tight {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-ink);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-on-dark);
  border-color: color-mix(in oklab, var(--color-on-dark) 40%, transparent);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--dark {
  background: var(--color-ink);
  color: var(--color-on-dark);
}
.btn--dark:hover {
  background: var(--color-primary);
  color: var(--color-ink);
}

.btn--sm {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-xs);
}

/* Theme toggle */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  color: inherit;
}
.theme-toggle:hover {
  background: color-mix(in oklab, var(--color-primary) 15%, transparent);
  color: var(--color-primary);
}