/* ============================================================
   KAERN — Styles
   Self-contained. No CDN dependency. Framer-portable.
   Token system in tokens.css.
   ============================================================ */

/* ----- Reset ----- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-body);
  line-height: 1.65;
  letter-spacing: var(--tracking-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  /* Subtle tadelakt-plaster grain — tuned for light surface */
  background-image:
    radial-gradient(at 20% 0%, rgba(166, 93, 67, 0.08) 0px, transparent 55%),
    radial-gradient(at 80% 100%, rgba(135, 111, 88, 0.06) 0px, transparent 55%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--terra-400); color: var(--sand-100); }

/* ----- Typography classes ----- */
.t-eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: var(--weight-label);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-terracotta);
}
.t-display {
  font-family: var(--font-display);
  font-size: clamp(var(--text-display-mobile), 5vw + 1rem, var(--text-display));
  font-weight: var(--weight-display);
  line-height: 1.05;
  letter-spacing: var(--tracking-display);
  color: var(--on-surface);
  margin: 0;
  /* Prevent the browser from breaking inside a word, and lean on text-wrap
     balance where supported for prettier line distribution. */
  word-break: keep-all;
  overflow-wrap: normal;
  hyphens: none;
  text-wrap: balance;
}
.t-h1, .t-h2 { text-wrap: balance; word-break: keep-all; overflow-wrap: normal; hyphens: none; }
.t-h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-h1-mobile), 3vw + 0.5rem, var(--text-h1));
  font-weight: var(--weight-headline);
  line-height: 1.15;
  letter-spacing: var(--tracking-headline);
  margin: 0;
}
.t-h2 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-h2-mobile), 2vw + 0.5rem, var(--text-h2));
  font-weight: var(--weight-headline);
  line-height: 1.2;
  letter-spacing: var(--tracking-headline);
  margin: 0;
}
.t-h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-headline);
  line-height: 1.3;
  letter-spacing: var(--tracking-headline);
  margin: 0;
}
.t-body-lg { font-size: var(--text-body-lg); line-height: 1.7; color: var(--on-surface-variant); }
.t-body    { color: var(--on-surface-variant); }
.t-muted   { color: var(--on-surface-muted); }
.t-label {
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: var(--weight-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

/* ----- Layout primitives ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-mobile);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--margin-desktop); }
}

.section { padding-block: var(--space-7); }
@media (min-width: 768px) {
  .section { padding-block: var(--section-gap); }
}

.stack-1 > * + * { margin-top: var(--space-1); }
.stack-2 > * + * { margin-top: var(--space-2); }
.stack-3 > * + * { margin-top: var(--space-3); }
.stack-4 > * + * { margin-top: var(--space-4); }
.stack-5 > * + * { margin-top: var(--space-5); }

.hairline {
  border: 0;
  height: 1px;
  background: var(--terra-400);
  opacity: 0.25;
  margin: 0;
}

/* ----- Header ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 231, 218, 0.88);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid rgba(26, 28, 23, 0.12);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.brand__mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2.5px solid var(--color-terracotta);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.brand__mark::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--on-surface);
}
.brand__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--on-surface);
}
.nav { display: none; gap: var(--space-4); align-items: center; }
@media (min-width: 900px) { .nav { display: flex; } }
.nav__link {
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--on-surface-variant);
  transition: color var(--duration-fast) var(--ease-out);
  padding-block: var(--space-1);
}
.nav__link:hover { color: var(--color-terracotta); }

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.9rem 1.6rem;
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  transition: transform var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-terracotta);
  color: var(--sand-100);
}
.btn--primary:hover { background: var(--terra-500); }

.btn--outline {
  background: transparent;
  color: var(--color-terracotta);
  border: 1.5px solid var(--color-terracotta);
}
.btn--outline:hover { background: rgba(166, 93, 67, 0.1); }

.btn--ghost {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}
.btn--ghost:hover { border-color: var(--color-terracotta); color: var(--color-terracotta); }

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 88vh;
  padding-block: var(--space-7);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(166, 93, 67, 0.16), transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(135, 111, 88, 0.10), transparent 60%);
}
/* Subtle mashrabiya pattern — geometric repeat, terracotta on light */
.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.10;
  background-image:
    repeating-linear-gradient(45deg, transparent 0 14px, var(--color-terracotta) 14px 15px),
    repeating-linear-gradient(-45deg, transparent 0 14px, var(--color-terracotta) 14px 15px);
  mask-image: radial-gradient(ellipse 60% 50% at 80% 30%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 80% 30%, black 0%, transparent 70%);
}
.hero__inner { position: relative; z-index: 1; max-width: 56ch; }
.hero__eyebrow { margin-bottom: var(--space-3); display: inline-block; }
.hero__lede {
  margin-top: var(--space-4);
  font-size: var(--text-body-lg);
  color: var(--on-surface-variant);
  max-width: 48ch;
}
.hero__actions {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ----- Section header ----- */
.section-header {
  max-width: 56ch;
  margin-bottom: var(--space-6);
}
.section-header__lede {
  margin-top: var(--space-3);
  color: var(--on-surface-variant);
  font-size: var(--text-body-lg);
}

/* ----- Cards ----- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
}
@media (min-width: 720px) {
  .card-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .card-grid--2 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
  box-shadow: 0 1px 0 rgba(26, 28, 23, 0.04);
}
.card:hover {
  border-color: var(--color-terracotta);
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -22px rgba(26, 28, 23, 0.18);
}
.card__chip {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-terracotta);
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(166, 93, 67, 0.35);
  border-radius: var(--radius-full);
}
.card__title { color: var(--on-surface); }
.card__body  { color: var(--on-surface-variant); }
.card__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-terracotta);
}
.card__link span { transition: transform var(--duration-fast) var(--ease-out); }
.card:hover .card__link span { transform: translateX(4px); }

/* ----- Feature row (alternating) ----- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  padding-block: var(--space-5);
  align-items: center;
}
@media (min-width: 800px) {
  .feature-row { grid-template-columns: 1fr 1fr; gap: var(--space-7); }
  .feature-row--reverse > :first-child { order: 2; }
}
.feature-row + .feature-row { border-top: 1px solid var(--outline-variant); }
.feature-art {
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(135deg, var(--moss-600) 0%, var(--moss-700) 60%, var(--terra-600) 140%);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}
.feature-art::before {
  content: "";
  position: absolute;
  inset: 12% 12% 12% 12%;
  border: 1px solid rgba(217, 197, 178, 0.18);
  border-radius: var(--radius-sm);
}
.feature-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(60deg, transparent 0 22px, rgba(217, 197, 178, 0.06) 22px 23px),
    repeating-linear-gradient(-60deg, transparent 0 22px, rgba(217, 197, 178, 0.06) 22px 23px);
}

/* ----- "Light section" — historically Desert Sand; in light-mode it becomes the dark Moss section ----- */
.section--light {
  background: var(--inverse-surface);          /* dark Moss */
  color: var(--inverse-on-surface);
}
.section--light .t-display,
.section--light .t-h1,
.section--light .t-h2,
.section--light .t-h3 { color: var(--inverse-on-surface); }
.section--light .t-body-lg,
.section--light .t-body,
.section--light .t-muted,
.section--light .section-header__lede { color: var(--inverse-on-muted); }
.section--light .hairline { background: var(--inverse-on-muted); opacity: 0.3; }
.section--light .t-eyebrow,
.section--light .card__chip { color: var(--color-terracotta); }
.section--light .card { background: rgba(255, 255, 255, 0.04); border-color: rgba(255, 255, 255, 0.12); }
.section--light .card__title { color: var(--inverse-on-surface); }
.section--light .card__body  { color: var(--inverse-on-muted); }
.section--light .pill { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.18); color: var(--inverse-on-muted); }
.section--light .btn--ghost { color: var(--inverse-on-surface); border-color: rgba(255,255,255,0.25); }
.section--light .btn--outline { color: var(--color-terracotta); border-color: var(--color-terracotta); }

/* ----- Pull quote ----- */
.pullquote {
  max-width: 60ch;
  margin-inline: auto;
  text-align: center;
}
.pullquote__text {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.3;
  font-weight: 400;
  font-style: italic;
  letter-spacing: 0.01em;
}
.pullquote__cite {
  margin-top: var(--space-3);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-terracotta);
}

/* ----- Inquiry form ----- */
.inquiry {
  max-width: 640px;
  margin-inline: auto;
}
.field { display: flex; flex-direction: column; gap: var(--space-1); margin-bottom: var(--space-3); }
.field__label {
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--on-surface-muted);
}
.field__input,
.field__textarea {
  background: transparent;
  color: var(--on-surface);
  border: 0;
  border-bottom: 1px solid var(--outline-variant);
  padding: 0.75rem 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  transition: border-color var(--duration-fast) var(--ease-out);
}
.field__input:focus,
.field__textarea:focus {
  outline: none;
  border-bottom-color: var(--color-terracotta);
}
.field__textarea { min-height: 7rem; resize: vertical; }

/* ----- Footer ----- */
.site-footer {
  border-top: 1px solid var(--outline-variant);
  background: var(--surface-container-lowest);
  padding-block: var(--space-5);
}
.site-footer__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: flex-start;
}
@media (min-width: 720px) {
  .site-footer__row { flex-direction: row; align-items: center; }
}
.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.site-footer__links a {
  font-size: var(--text-label);
  letter-spacing: 0.04em;
  color: var(--on-surface-variant);
  transition: color var(--duration-fast) var(--ease-out);
}
.site-footer__links a:hover { color: var(--color-terracotta); }
.site-footer__meta {
  font-size: var(--text-caption);
  color: var(--on-surface-muted);
  letter-spacing: 0.05em;
}

/* ----- Swatch (for design-system page) ----- */
.swatch {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--outline-variant);
  background: var(--color-charcoal);
}
.swatch__chip { height: 120px; }
.swatch__meta { padding: var(--space-2) var(--space-3); }
.swatch__name { font-family: var(--font-display); font-size: 1.125rem; }
.swatch__hex  { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: var(--text-caption); color: var(--on-surface-muted); }

/* ----- Ramp ----- */
.ramp {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  margin-top: var(--space-2);
}
.ramp__step {
  height: 28px;
  border-radius: 2px;
}

/* ----- Utility ----- */
.center { text-align: center; }
.muted-block {
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

/* ----- Focus-visible (a11y) ----- */
:focus-visible {
  outline: 2px solid var(--color-terracotta);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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