/* ═══════════════════════════════════════════════════════════
   الهوية البصرية + مقياس أحجام متناسق (8px grid)
   ═══════════════════════════════════════════════════════════ */

:root {
  /* ألوان */
  --color-primary: #3d3d3d;
  --color-link: #5a5a5a;
  --color-primary-dark: #2a2a2a;
  --color-secondary: #8c7b66;
  --color-accent: #c4b5a0;
  --color-bg: #f2e5d2;
  --color-bg-pattern: #f2e5d2;
  --color-surface: rgba(255, 252, 247, 0.72);
  --color-surface-hover: rgba(255, 252, 247, 0.92);
  --color-text: #3d3d3d;
  --color-text-muted: #6b6358;
  --color-shadow: rgba(61, 61, 61, 0.12);
  --color-shadow-hover: rgba(61, 61, 61, 0.22);

  /* مقياس الأحجام — جوال */
  --logo-width: 256px;
  --content-width: 320px;
  --space-page-y: 2rem;
  --space-page-x: 1rem;
  --space-section: 1.5rem;
  --space-header: 0.75rem;
  --space-links: 0.75rem;

  --bio-size: 0.8125rem;
  --link-font: 0.9375rem;
  --link-pad-y: 0.625rem;
  --link-pad-x: 1rem;
  --link-gap: 0.75rem;

  --icon-size: 2.5rem;
  --icon-font: 1.0625rem;
  --map-icon-w: calc(var(--icon-size) * 0.5);
  --map-icon-h: calc(var(--icon-size) * 0.62);

  --copyright-size: 0.75rem;
  --radius-sm: 10px;
  --radius-md: 14px;

  --font-family: "Cairo", "Segoe UI", Tahoma, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Reset & Base ─── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  -webkit-font-smoothing: antialiased;
}

.bg-pattern {
  display: none;
}

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

/* ─── Page ─── */
.page {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-width);
  min-height: 100dvh;
  padding: var(--space-page-y) var(--space-page-x);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-section);
}

/* ─── Header ─── */
.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-header);
  width: 100%;
  animation: fadeInDown 0.6s ease both;
}

.logo-wrap {
  display: flex;
  justify-content: center;
  width: 100%;
}

.logo {
  display: block;
  width: var(--logo-width);
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.bio {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  width: 100%;
  max-width: 100%;
  text-align: center;
}

.bio__line {
  font-size: clamp(0.65rem, 3.35vw, var(--bio-size));
  font-weight: 700;
  color: var(--color-link);
  letter-spacing: 0.01em;
  line-height: 1.4;
  white-space: nowrap;
}

/* ─── Links ─── */
.links {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-links);
  animation: fadeInUp 0.6s 0.15s ease both;
}

.link-btn {
  display: flex;
  align-items: center;
  gap: var(--link-gap);
  width: 100%;
  padding: var(--link-pad-y) var(--link-pad-x);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-link);
  font-weight: 600;
  font-size: var(--link-font);
  font-family: inherit;
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1.5px solid rgba(140, 123, 102, 0.25);
  box-shadow: 0 4px 16px var(--color-shadow);
  transition:
    transform var(--transition),
    background var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.link-btn__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--icon-size);
  height: var(--icon-size);
  border-radius: var(--radius-sm);
  background: var(--color-link);
  color: var(--color-bg);
  font-size: var(--icon-font);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.link-btn__text {
  flex: 1;
  text-align: right;
}

.link-btn__arrow {
  font-size: calc(var(--link-font) * 0.75);
  color: var(--color-secondary);
  opacity: 0;
  transform: translateX(6px);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.link-btn:hover,
.link-btn:focus-visible {
  transform: scale(1.02);
  background: var(--color-surface-hover);
  border-color: var(--color-secondary);
  box-shadow: 0 8px 24px var(--color-shadow-hover);
  outline: none;
}

.link-btn:hover .link-btn__icon,
.link-btn:focus-visible .link-btn__icon {
  transform: scale(1.06);
}

.link-btn:hover .link-btn__arrow,
.link-btn:focus-visible .link-btn__arrow {
  opacity: 1;
  transform: translateX(0);
}

.link-btn:active {
  transform: scale(0.99);
}

.link-btn__map-icon {
  display: block;
  width: var(--map-icon-w);
  height: var(--map-icon-h);
  object-fit: contain;
}

.link-btn--whatsapp .link-btn__icon {
  font-size: calc(var(--icon-font) * 1.28);
}

/* ─── Footer ─── */
.footer {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: auto;
  padding-top: 0.25rem;
  padding-bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  animation: fadeInUp 0.6s 0.3s ease both;
}

.copyright {
  font-size: var(--copyright-size);
  color: var(--color-text-muted);
  text-align: center;
}

/* ─── Animations ─── */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── Tablet ─── */
@media (min-width: 480px) {
  :root {
    --logo-width: 288px;
    --content-width: 360px;
    --space-page-y: 2.5rem;
    --space-section: 1.75rem;
    --link-pad-y: 1rem;
    --link-pad-x: 1.375rem;
  }
}

/* ─── Desktop ─── */
@media (min-width: 768px) {
  :root {
    --logo-width: 344px;
    --content-width: 344px;
    --space-page-y: 1.5rem;
    --space-page-x: 1.125rem;
    --space-section: 1.25rem;
    --space-header: 0.625rem;
    --space-links: 0.625rem;

    --bio-size: 0.75rem;
    --link-font: 0.875rem;
    --link-pad-y: 0.75rem;
    --link-pad-x: 1.125rem;
    --link-gap: 0.75rem;

    --icon-size: 2.5rem;
    --icon-font: 1.0625rem;

    --copyright-size: 0.6875rem;
  }

  body {
    align-items: center;
    overflow-x: hidden;
  }

  .page {
    min-height: auto;
  }

  .footer {
    margin-top: 0;
    padding-bottom: 0.25rem;
  }
}

/* ─── Desktop — شاشة قصيرة ─── */
@media (min-width: 768px) and (max-height: 720px) {
  :root {
    --logo-width: 304px;
    --content-width: 304px;
    --space-page-y: 1rem;
    --space-section: 1rem;
  }
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}