/* ================================================
   SUFRAH — Base Styles & Typography
   RTL-first, Arabic typography
   ================================================ */

/* === Google Font Import === */
@import url('https://fonts.googleapis.com/css2?family=Alexandria:wght@300;400;500;600;700;800&display=swap');

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

html {
  scroll-behavior: smooth;
  direction: rtl;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

html::-webkit-scrollbar {
  width: 8px;
}

html::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

html::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-slow),
              color var(--transition-slow);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--fs-hero);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
}

h4 {
  font-size: var(--fs-xl);
}

h5 {
  font-size: var(--fs-lg);
}

h6 {
  font-size: var(--fs-md);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* === Selection === */
::selection {
  background-color: rgba(124, 58, 237, 0.3);
  color: var(--color-text-primary);
}

/* === Utilities === */
.text-gradient {
  background: var(--gradient-brand-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-brand {
  color: var(--color-brand-300);
}

[data-theme="light"] .text-brand {
  color: var(--color-brand-600);
}

[data-theme="light"] .text-gradient {
  background: var(--gradient-brand-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-center { text-align: center; }
.text-start { text-align: right; } /* RTL */

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

/* === Glow Decoration === */
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: var(--z-behind);
}

.glow--purple {
  background: rgba(124, 58, 237, 0.2);
}

.glow--blue {
  background: rgba(96, 165, 250, 0.1);
}

/* === Section Badge === */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-brand);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-brand-300);
  margin-bottom: var(--space-6);
}

[data-theme="light"] .section-badge {
  color: var(--color-brand-600);
  background: rgba(124, 58, 237, 0.06);
}

.section-badge svg {
  width: 16px;
  height: 16px;
}

/* === Theme Transition === */
body.theme-transitioning,
body.theme-transitioning * {
  transition: background-color 0.4s ease,
              color 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease !important;
}

/* === Scroll Reveal (Initial State) === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }