/* ============================================================
   NADIA SHENASI — Portfolio
   Dark elevated aesthetic · Motion Designer
   ============================================================ */

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

:root {
  /* Palette — warm-tinted dark */
  --bg:          #0a0a0a;
  --bg-elevated: #111111;
  --bg-card:     #161616;
  --surface:     #1a1a1a;
  --border:      #222222;
  --border-light:#2a2a2a;

  --text-primary:   #f0ece6;
  --text-secondary: #9a9590;
  --text-muted:     #5c5753;
  --text-accent:    #c8a97e;

  --accent:      #c8a97e;
  --accent-dim:  #a08560;
  --accent-glow: rgba(200, 169, 126, 0.12);

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing scale */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 10rem;

  /* Layout */
  --container-max: 1280px;
  --container-wide: 1440px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 200ms;
  --duration-med:  400ms;
  --duration-slow: 800ms;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

/* --- Utility --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

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

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

/* --- Typography --- */
.text-display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.text-heading {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.text-label {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.text-body {
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-secondary);
}

.text-accent {
  color: var(--accent);
}

/* --- Page transitions --- */
.page-transition {
  animation: pageIn 0.6s var(--ease-out) both;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Scroll reveal --- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* stagger children */
[data-reveal-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-med) var(--ease-out),
              transform var(--duration-med) var(--ease-out);
}

[data-reveal-stagger].revealed > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-stagger].revealed > *:nth-child(2) { transition-delay: 80ms; }
[data-reveal-stagger].revealed > *:nth-child(3) { transition-delay: 160ms; }
[data-reveal-stagger].revealed > *:nth-child(4) { transition-delay: 240ms; }
[data-reveal-stagger].revealed > *:nth-child(5) { transition-delay: 320ms; }
[data-reveal-stagger].revealed > *:nth-child(6) { transition-delay: 400ms; }

[data-reveal-stagger].revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Selection --- */
::selection {
  background: var(--accent);
  color: var(--bg);
}