/*
 * Baseer design tokens + base styles — dark theme (Metoro-inspired).
 * Complements the Tailwind Play CDN config embedded in each page's <head>.
 * Keep raw values in sync with tailwind.config there.
 */
:root {
  /* Dark palette */
  --color-bg: #0b1120;            /* deep navy (slate-950 family) */
  --color-surface: #0f172a;       /* slate-900 */
  --color-primary: #0b1120;       /* legacy var name kept for older refs */
  --color-primary-dark: #020617;
  --color-primary-light: #1e293b;
  --color-accent-start: #3b82f6;  /* electric blue */
  --color-accent-end: #06b6d4;    /* cyan */
  --color-text: #f8fafc;          /* slate-50 */
  --color-text-muted: #94a3b8;    /* slate-400 */

  --gradient-accent: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));

  /* Inter for Latin, Tajawal for Arabic (swap under RTL) — loaded in <head> */
  --font-latin: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-arabic: "Tajawal", "Cairo", ui-sans-serif, system-ui, sans-serif;
  --font-body: var(--font-latin);
}

/* RTL: Arabic-first stack; layout flips automatically via logical utilities. */
[dir="rtl"] {
  --font-body: var(--font-arabic);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-muted);
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(59, 130, 246, 0.35);
  color: #fff;
}

/* Brand helpers */
.bg-gradient-accent {
  background-image: var(--gradient-accent);
}

.text-gradient-accent {
  background-image: linear-gradient(90deg, var(--color-accent-start), var(--color-accent-end));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Glassmorphism card: translucent surface + blur + hairline border */
.glass {
  background-color: rgba(15, 23, 42, 0.5);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(30, 41, 59, 0.8);
}

/* Sticky header becomes more opaque and elevated after scrolling
   (class toggled by main.js on [data-header]). */
[data-header].is-scrolled {
  background-color: rgba(2, 6, 23, 0.85);
  box-shadow: 0 12px 32px -12px rgba(0, 0, 0, 0.6);
}

/* Scroll-triggered reveals: main.js adds .is-visible when the element
   enters the viewport (IntersectionObserver). */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
[data-animate].is-visible {
  opacity: 1;
  transform: none;
}

/* Keep anchor targets clear of the sticky header */
:target {
  scroll-margin-top: 6rem;
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent-end);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  inset-inline-start: -9999px;
  top: 0;
  z-index: 100;
}
.skip-link:focus {
  inset-inline-start: 1rem;
  top: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-accent-start);
  color: #fff;
  border-radius: 0.375rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
