/* ==========================================================================
   Rakaiz Babel — site styles
   Load AFTER css/tokens.css. Organised as:
     1. Base            2. Layout          3. Typography
     4. Header + nav    5. Buttons         6. Cards and lists
     7. Page sections   8. Forms           9. Footer
    10. Responsive
   ========================================================================== */

/* 1. Base ================================================================== */

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

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

body {
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-body);
  font: var(--text-body-md);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, figure, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; }

a {
  color: var(--color-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { color: var(--color-link-hover); }

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* Anchor links land below the sticky header. */
[id] { scroll-margin-top: 96px; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* 2. Layout ================================================================ */

.wrap {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--page-inset);
}

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

.band { padding: var(--space-section-lg) 0; }
.band--tight { padding: var(--space-section) 0; }
.band--top { padding-top: var(--space-section); }

.band--soft {
  background: var(--color-surface-soft);
  border-top: 1px solid var(--color-hairline-soft);
}

.band--hairline { border-top: 1px solid var(--color-hairline-soft); }

.band--brand {
  background: var(--color-surface-brand);
  color: var(--color-on-primary);
}

/* Simple column grids -------------------------------------------------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl) var(--space-xxl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter-card); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter-column); }

/* Two-column splits ----------------------------------------------------- */
.split-hero    { display: grid; grid-template-columns: 1.05fr .95fr; gap: var(--space-xxl); align-items: center; }
.split-wide    { display: grid; grid-template-columns: 1.1fr .9fr;   gap: var(--space-xxl); align-items: start; }
.split-service { display: grid; grid-template-columns: 1.15fr .85fr; gap: var(--space-xxl); align-items: start; }
.split-even    { display: grid; grid-template-columns: 1fr 1fr;      gap: var(--space-xxl); align-items: start; }
.split-name    { display: grid; grid-template-columns: .8fr 1.2fr;   gap: var(--space-xxl); align-items: start; }
.split-case    { display: grid; grid-template-columns: .8fr 1.2fr;   gap: var(--space-xl) var(--space-xxl); align-items: start; }
.split-form    { display: grid; grid-template-columns: 1.25fr .75fr; gap: var(--space-xxl); align-items: start; }
.split-member  { display: grid; grid-template-columns: 320px 1fr;    gap: var(--space-xxl); align-items: center; }

.stack { display: flex; flex-direction: column; gap: var(--space-base); }
.stack--lg { gap: var(--space-lg); }

.button-row { display: flex; flex-wrap: wrap; gap: var(--space-md); }

/* 3. Typography ============================================================ */

.eyebrow {
  font: var(--text-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.micro-label {
  font: var(--text-micro-label);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-title {
  font: var(--text-display-xxl);
  letter-spacing: var(--tracking-display-xxl);
  color: var(--color-ink);
  text-wrap: balance;
}

.section-title {
  font: var(--text-display-lg);
  letter-spacing: var(--tracking-display-lg);
  color: var(--color-ink);
  text-wrap: balance;
}

.cta-title {
  font: var(--text-display-xl);
  letter-spacing: var(--tracking-display-xl);
  color: var(--color-on-primary);
  text-wrap: balance;
}

.sub-title {
  font: var(--text-display-md);
  font-family: var(--font-display);
  letter-spacing: var(--tracking-display-md);
  color: var(--color-ink);
}

.card-title {
  font: var(--text-display-sm);
  letter-spacing: var(--tracking-display-sm);
  color: var(--color-ink);
}

.item-title { font: var(--text-title-md); color: var(--color-ink); }
.item-label { font: var(--text-title-sm); color: var(--color-ink); }

.lead { font: var(--text-body-lg); color: var(--color-body); text-wrap: pretty; }
.lead--inverse { color: var(--lapis-100); }
.body { font: var(--text-body-md); color: var(--color-body); text-wrap: pretty; }
.body--ink { color: var(--color-ink); }
.body-sm { font: var(--text-body-sm); color: var(--color-body); text-wrap: pretty; }
.caption { font: var(--text-caption-sm); color: var(--color-muted); }

.measure { max-width: 64ch; }
.measure--narrow { max-width: 56ch; }
.measure--wide { max-width: 76ch; }

/* Brass pill used for "to confirm" style notes. */
.note-pill {
  display: inline-block;
  font: var(--text-micro-label);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  padding: 4px 12px;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}
.section-head .eyebrow { margin-bottom: 0; }

/* Breadcrumb ------------------------------------------------------------ */
.breadcrumb { margin-bottom: var(--space-lg); }
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font: var(--text-caption-sm);
  color: var(--color-muted);
}
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-ink); }
.breadcrumb [aria-current] { color: var(--color-ink); }

/* 4. Header and navigation ================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  height: var(--nav-height);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  flex: 0 0 auto;
}
.brand__mark { height: 34px; width: auto; display: block; }
.brand__name {
  font: var(--text-display-md);
  font-family: var(--font-display);
  letter-spacing: var(--tracking-display-md);
  color: var(--color-ink);
}

.nav { display: flex; align-items: center; gap: var(--space-xl); }
.nav__link {
  font: var(--text-nav-link);
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav__link:hover { color: var(--color-ink); }
.nav__link--active {
  color: var(--color-ink);
  border-bottom: 2px solid var(--color-ink);
  padding-bottom: 2px;
}

.header-actions { display: flex; align-items: center; gap: var(--space-md); flex: 0 0 auto; }

.header-phone {
  display: inline-flex;
  align-items: center;
  font: var(--text-button-sm);
  color: var(--color-ink);
  text-decoration: none;
}
.header-phone:hover { color: var(--color-primary); }

.lang-switch {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-full);
  font: var(--text-button-sm);
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}
.lang-switch:hover { background: var(--color-surface-soft); color: var(--color-ink); }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 14px;
  background: var(--color-canvas);
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-sm);
  font: var(--text-button-sm);
  color: var(--color-ink);
  cursor: pointer;
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--color-hairline-soft);
  background: var(--color-canvas);
}
.mobile-nav.is-open { display: block; }
.mobile-nav__inner {
  display: flex;
  flex-direction: column;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-base);
}
.mobile-nav__link {
  font: var(--text-title-md);
  color: var(--color-ink);
  text-decoration: none;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-hairline-soft);
}
.mobile-nav__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: var(--space-base);
}

/* 5. Buttons =============================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: var(--text-button-md);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.btn:hover { text-decoration: none; }
.btn svg { flex: 0 0 auto; }

.btn--sm { height: 40px; padding: 0 16px; font: var(--text-button-sm); }
.btn--md { height: 48px; padding: 0 20px; }
.btn--lg { height: 56px; padding: 0 32px; }
.btn--block { width: 100%; }

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

.btn--secondary {
  background: var(--color-canvas);
  border-color: var(--color-ink);
  color: var(--color-ink);
}
.btn--secondary:hover { background: var(--color-surface-soft); color: var(--color-ink); }

.btn--inverse {
  background: var(--color-canvas);
  color: var(--color-primary);
}
.btn--inverse:hover { background: var(--lapis-050); color: var(--color-primary-active); }

.btn--outline-inverse {
  background: transparent;
  border-color: rgba(255, 255, 255, .6);
  color: var(--color-on-primary);
}
.btn--outline-inverse:hover { background: rgba(255, 255, 255, .1); color: var(--color-on-primary); }

/* Text link with underline, used under body copy. */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font: var(--text-button-md);
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 3px;
  align-self: flex-start;
}

/* 6. Cards and lists ======================================================= */

.card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow var(--transition-base);
}
.card:hover { box-shadow: var(--shadow-float); }
.card--roomy { padding: 32px; }
.card__label { margin-bottom: var(--space-md); }
.card__title { margin-bottom: var(--space-sm); }

/* Rule-topped feature column. */
.feature {
  border-top: 2px solid var(--color-ink);
  padding-top: var(--space-base);
}
.feature__title { margin-bottom: var(--space-sm); }

/* Numbered process step. */
.step {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  border-left: 1px solid var(--color-hairline);
  padding-left: var(--space-lg);
}
.step__number {
  font: var(--text-stat);
  font-size: 32px;
  color: var(--color-accent);
}

/* Stacked rule-separated list. */
.rule-list__item {
  font: var(--text-body-md);
  color: var(--color-ink);
  padding: var(--space-base) 0;
  border-bottom: 1px solid var(--color-hairline);
}
.rule-list--top .rule-list__item { border-bottom: 0; border-top: 1px solid var(--color-hairline); }
.rule-list--top .rule-list__item:last-child { border-bottom: 1px solid var(--color-hairline); }

/* Compact list inside a card. */
.spec-list__item {
  font: var(--text-body-sm);
  color: var(--color-body);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-hairline-soft);
}
.spec-list__item:last-child { border-bottom: 0; }

/* Definition rows (values, terms). */
.term-row {
  border-top: 1px solid var(--color-hairline);
  padding: var(--space-lg) 0;
}
.term-row:last-child { border-bottom: 1px solid var(--color-hairline); }
.term-row dt { margin-bottom: var(--space-xs); }

.term-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl) var(--space-xxl); }
.term-grid > div {
  border-top: 1px solid var(--color-hairline);
  padding-top: var(--space-base);
}
.term-grid dt { margin-bottom: var(--space-sm); }

/* Statistic. */
.stat__value {
  font: var(--text-stat);
  color: var(--color-ink);
}
.stat__label { font: var(--text-body-sm); color: var(--color-body); margin-top: var(--space-sm); }
.stat__note { font: var(--text-caption-sm); color: var(--color-muted); margin-top: var(--space-xs); }

/* 7. Page sections ========================================================= */

/* Media frames. */
.media {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-soft);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.media--arch {
  border-radius: var(--radius-arch);
  aspect-ratio: 4 / 5;
  max-height: 560px;
}
.media--portrait { aspect-ratio: 4 / 5; }
.media--landscape { aspect-ratio: 4 / 3; }
.media--wide { aspect-ratio: 16 / 6; }
.media--square { aspect-ratio: 1 / 1; background: var(--color-canvas); }
.media--map { aspect-ratio: 21 / 8; border: 1px solid var(--color-hairline); border-radius: var(--radius-lg); }
.media--map iframe { width: 100%; height: 100%; border: 0; display: block; }

.figure { display: flex; flex-direction: column; gap: var(--space-md); }
.figure figcaption { font: var(--text-caption-sm); color: var(--color-muted); }

/* Closing call-to-action band. */
.cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-lg);
}

/* Arabic wordmark on the About page. */
.arabic-mark {
  font: var(--text-display-xl);
  font-family: var(--font-display);
  color: var(--color-accent);
}

.bordered-column {
  border-left: 1px solid var(--color-hairline);
  padding-left: var(--space-xl);
}

/* Case-study template card (Portfolio). */
.case-card {
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
  background: var(--color-canvas);
  overflow: hidden;
}
.case-card__inner { padding: var(--space-xl); }
.meta-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md) var(--space-lg); }
.meta-grid dt { margin-bottom: var(--space-xs); }
.meta-grid dd { font: var(--text-body-sm); color: var(--color-ink); }

.quote {
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-lg);
}
.quote blockquote {
  font: var(--text-body-md);
  font-family: var(--font-display);
  color: var(--color-ink);
  margin: 0;
  text-wrap: pretty;
}
.quote figcaption { font: var(--text-caption-sm); color: var(--color-muted); margin-top: var(--space-sm); }

/* Accordion (Contact FAQ). */
.accordion__item { border-top: 1px solid var(--color-hairline); }
.accordion__item:last-child { border-bottom: 1px solid var(--color-hairline); }

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  width: 100%;
  padding: var(--space-lg) 0;
  background: none;
  border: 0;
  font: var(--text-title-md);
  color: var(--color-ink);
  text-align: left;
  cursor: pointer;
}
.accordion__icon { transition: transform var(--transition-base); flex: 0 0 auto; }
.accordion__trigger[aria-expanded="true"] .accordion__icon { transform: rotate(180deg); }

.accordion__panel {
  display: none;
  padding-bottom: var(--space-lg);
  font: var(--text-body-sm);
  color: var(--color-body);
  max-width: 76ch;
  text-wrap: pretty;
}
.accordion__panel.is-open { display: block; }

/* 8. Forms ================================================================= */

.form { display: flex; flex-direction: column; gap: var(--space-lg); }
.field-pair { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }

.field { display: flex; flex-direction: column; gap: 6px; }
.field__label { font: var(--text-caption); color: var(--color-muted); }

.field__control {
  width: 100%;
  padding: 14px 12px;
  background: var(--color-canvas);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font: var(--text-body-md);
  color: var(--color-ink);
  transition: border-color var(--transition-fast);
}
.field__control:focus {
  outline: none;
  border: 2px solid var(--color-focus);
  padding: 13px 11px;
}
.field__control[aria-invalid="true"] { border-color: var(--color-red, var(--red-600)); }

textarea.field__control { resize: vertical; min-height: 160px; }

.field__error {
  font: var(--text-caption-sm);
  color: var(--red-600);
}
.field__error:empty { display: none; }

.field__hint { font: var(--text-caption-sm); color: var(--color-muted); }

.form-submit {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}

.form-success {
  border: 1px solid var(--green-600);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  padding: var(--space-xl);
}

.is-hidden { display: none !important; }

/* 9. Footer ================================================================ */

.site-footer {
  background: var(--color-surface-inverse);
  color: var(--color-on-inverse);
  padding: var(--space-section) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl) var(--gutter-column);
  align-items: start;
}

.footer-col { display: flex; flex-direction: column; gap: var(--space-md); }
.footer-col__title { font: var(--text-title-sm); }
.footer-mark { height: 50px; width: 50px; display: block; }
.footer-blurb { font: var(--text-body-sm); color: var(--grey-400); max-width: 34ch; }

.footer-link {
  font: var(--text-body-sm);
  color: var(--grey-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-link:hover { color: var(--color-on-inverse); }

.footer-bottom {
  margin-top: var(--space-xxl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, .16);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
  font: var(--text-caption-sm);
  color: var(--grey-500);
}
.footer-bottom a { color: var(--grey-500); text-decoration: none; transition: color var(--transition-fast); }
.footer-bottom a:hover { color: var(--color-on-inverse); }

/* 10. Responsive =========================================================== */

@media (max-width: 1023px) {
  .nav,
  .header-phone,
  .header-cta { display: none; }

  .lang-switch {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-full);
  font: var(--text-button-sm);
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}
.lang-switch:hover { background: var(--color-surface-soft); color: var(--color-ink); }

.nav-toggle { display: inline-flex; }

  .split-hero,
  .split-wide,
  .split-service,
  .split-even,
  .split-name,
  .split-case,
  .split-form { grid-template-columns: 1fr; gap: var(--space-xl); }

  .grid-3,
  .grid-4,
  .footer-grid { grid-template-columns: repeat(2, 1fr); }

  .band { padding: var(--space-section) 0; }

  .page-title { font-size: 42px; letter-spacing: -1px; }
  .section-title,
  .cta-title { font-size: 26px; }
}

@media (max-width: 700px) {
  .wrap { padding: 0 var(--page-inset-mobile); }

  .grid-2,
  .grid-3,
  .grid-4,
  .footer-grid,
  .field-pair,
  .term-grid,
  .meta-grid,
  .split-member { grid-template-columns: 1fr; }

  .split-member { gap: var(--space-lg); }

  .band { padding: 56px 0; }

  .page-title { font-size: 34px; letter-spacing: -0.6px; }
  .section-title,
  .cta-title { font-size: 23px; }
  .lead { font-size: 17px; }

  .button-row { flex-direction: column; align-items: stretch; }
  .button-row > .btn { width: 100%; }

  .case-card__inner { padding: var(--space-lg); }
  .bordered-column { border-left: 0; padding-left: 0; }
}

/* 11. Small additions ====================================================== */

/* Discipline line: "Engineering • Architecture • Construction • Interiors" */
.tagline {
  font: var(--text-caption);
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-muted);
}
.tagline--accent { color: var(--color-accent); }
.tagline--inverse { color: var(--grey-400); }

/* Bilingual brand line. */
.brand-line { display: flex; flex-direction: column; gap: 6px; }
.brand-line__ar {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--color-accent);
}

/* Hairline pills used for capability lists. */
.chip-list { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font: var(--text-body-sm);
  color: var(--color-ink);
  background: var(--color-canvas);
}

/* Two-column list inside a service block. */
.two-col-list { columns: 2; column-gap: var(--space-xl); }
.two-col-list li {
  font: var(--text-body-sm);
  color: var(--color-body);
  padding: 7px 0;
  break-inside: avoid;
}

@media (max-width: 700px) {
  .two-col-list { columns: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}