/* Al Sahraa — reference reconstruction tokens (from forensic measurements) */
:root {
  --page-gutter: clamp(20px, 5vw, 72px);
  --container-max: 1296px;
  --content-wide: 1296px;
  --content-narrow: min(42rem, 100%);
  --section-space: clamp(96px, 13vh, 170px);
  --section-space-large: clamp(110px, 15vh, 200px);
  --grid-gap: 20px;
  --header-height: 80px;

  --sk-black: #111315;
  --sk-deep: #181c21;
  --sk-slate: #3b332f;
  --sk-slate-light: #4c433d;
  --sk-sand: #d5c5ae;
  --sk-sand-light: #eee5d8;
  --sk-ivory: #f7f3ec;
  --sk-white: #fcfaf7;
  --sk-copper: #be5107;
  --sk-copper-dark: #8c2e02;
  --sk-copper-deep: #6a2107;
  --sk-text-dark: #17191b;
  --sk-text-light: #f7f4ee;
  --sk-muted-dark: #696c70;
  --sk-muted-light: #c9c5be;
  --sk-measured-sand: #e9e5df;
  --sk-measured-slate: #403732;
  --sk-measured-copper: #8c2e02;

  --font-display: "IBM Plex Sans Arabic", "IBM Plex Sans", "Segoe UI", Tahoma, sans-serif;
  --font-body: "IBM Plex Sans Arabic", "IBM Plex Sans", "Segoe UI", Tahoma, sans-serif;

  --fs-nav: 13px;
  --fs-label: clamp(0.75rem, 0.7rem + 0.2vw, 0.85rem);
  --fs-display: clamp(2.4rem, 1.6rem + 3.2vw, 4.25rem);
  --fs-section: clamp(1.75rem, 1.3rem + 1.6vw, 2.75rem);
  --fs-body-lg: clamp(1.05rem, 1rem + 0.35vw, 1.25rem);
  --fs-body: 1rem;
  --fs-card-title: 17px;
  --fs-card-title-back: 18px;
  --fs-card-body: 14px;
  --fs-num: clamp(3.5rem, 2rem + 4vw, 6.5rem);

  --lh-tight: 1.2;
  --lh-body: 1.6;

  --ease-flip: cubic-bezier(0.65, 0, 0.2, 1);
  --ease-reveal: cubic-bezier(0.16, 1, 0.3, 1);
  --flip-ms: 800ms;
  --perspective-flip: 1300px;
  --card-w: 309px;
  --card-h: 244px;
  --card-radius: 3px 3px 3px 22px;
  --card-radius-rtl: 3px 3px 22px 3px;
}

[dir="rtl"] {
  --card-radius: 3px 3px 22px 3px;
}

[dir="ltr"] {
  --font-display: "IBM Plex Sans", "Segoe UI", Tahoma, sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", Tahoma, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--sk-text-dark);
  background: var(--sk-ivory);
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
}

.sk-container {
  width: min(100% - (var(--page-gutter) * 2), var(--container-max));
  margin-inline: auto;
}

.sk-section {
  position: relative;
  padding-block: var(--section-space);
  padding-inline: var(--page-gutter);
}

.sk-section--flush {
  padding-inline: 0;
}

.sk-eyebrow {
  margin: 0 0 0.75rem;
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sk-copper);
  font-weight: 600;
}

.sk-display {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  font-weight: 700;
  max-width: 14ch;
}

.sk-h2 {
  margin: 0 0 1rem;
  font-size: var(--fs-section);
  line-height: var(--lh-tight);
  font-weight: 700;
  max-width: 18ch;
}

.sk-lead {
  margin: 0;
  font-size: var(--fs-body-lg);
  max-width: var(--content-narrow);
  color: var(--sk-muted-dark);
}

.sk-num {
  font-size: var(--fs-num);
  line-height: 1;
  font-weight: 300;
  letter-spacing: -0.04em;
  color: var(--sk-copper);
  opacity: 0.85;
}

.sk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.7rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  transition: background 0.25s var(--ease-reveal), color 0.25s, border-color 0.25s;
}

.sk-btn--solid {
  background: var(--sk-white);
  color: var(--sk-text-dark);
}

.sk-btn--ghost {
  background: transparent;
  color: var(--sk-text-light);
  border-color: rgba(252, 250, 247, 0.55);
}

.sk-btn--dark {
  background: var(--sk-deep);
  color: var(--sk-text-light);
}

.sk-btn--copper {
  background: var(--sk-copper);
  color: var(--sk-white);
}

.sk-btn--copper:hover {
  background: var(--sk-copper-dark);
}

.sk-btn--copper:active {
  background: var(--sk-copper-deep);
}

.sk-skip {
  position: absolute;
  inset-inline-start: 1rem;
  top: -3rem;
  z-index: 1000;
  padding: 0.5rem 1rem;
  background: var(--sk-white);
  color: var(--sk-text-dark);
}

.sk-skip:focus {
  top: 1rem;
}