/* ============================================================
   Ahmed Bahamat Portfolio — design tokens (source of truth)
   Black + dark-blue duotone. No template green anywhere.
   ============================================================ */

:root {
  /* Color */
  --color-bg: #FFFFFF;
  --color-surface: #F5F7FB;
  --color-surface-2: #EEF2FA;
  --color-ink: #0A0F1E;
  --color-ink-soft: #1B2436;
  --color-body: #525B6B;
  --color-muted: #8A93A3;
  --color-border: #E5EAF3;
  --color-primary: #1B3A8B;
  --color-primary-deep: #11245A;
  --color-primary-lift: #3B6FE5;
  --color-primary-050: #EAF0FF;
  --color-on-primary: #FFFFFF;
  --color-rating: #F5A623;
  --color-focus: #3B6FE5;

  /* Decoration dots */
  --dot-navy: #1B3A8B;
  --dot-blue: #3B6FE5;
  --dot-black: #0A0F1E;
  --dot-soft: #C8D4EC;

  /* Type */
  --font: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  --text-hero: clamp(2.6rem, 1.4rem + 4vw, 4.5rem);   /* ~72px */
  --text-h2: clamp(1.9rem, 1.2rem + 2.4vw, 3rem);     /* ~48px */
  --text-h3: 1.375rem;                                 /* 22px */
  --text-stat: clamp(2.4rem, 1.6rem + 2.6vw, 3.5rem); /* ~56px */
  --text-lg: 1.125rem;                                 /* 18px */
  --text-base: 1rem;                                   /* 16px */
  --text-sm: 0.875rem;                                 /* 14px */

  /* Shape & depth */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-soft: 0 6px 20px rgba(10, 15, 30, 0.05);
  --shadow-card: 0 14px 40px rgba(10, 15, 30, 0.08);
  --shadow-focus: 0 0 0 4px rgba(59, 111, 229, 0.28);

  /* Layout */
  --container: 1200px;
  --gutter: 24px;
  --section-y: 120px;
  --section-y-sm: 64px;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-body);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; }
h1, h2, h3 { color: var(--color-ink); line-height: 1.2; font-weight: 700; text-wrap: balance; }

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

::selection { background: var(--color-primary); color: #fff; }

.lucide { width: 24px; height: 24px; flex: none; display: inline-block; vertical-align: middle; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  overflow-x: hidden;
  padding-block: var(--section-y);
  position: relative;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  background: var(--color-primary-050);
  padding: 6px 16px;
  border-radius: 999px;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
}

.section-head { max-width: 640px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-title {
  font-size: var(--text-h2);
  margin-top: 18px;
  letter-spacing: -0.01em;
}
.section-title .hl { color: var(--color-primary); }
.section-lead {
  font-size: var(--text-lg);
  margin-top: 18px;
  color: var(--color-body);
  text-wrap: pretty;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-size: var(--text-base);
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.btn:active { transform: translateY(1px); }
.btn .lucide { width: 18px; height: 18px; }

.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-primary:hover { background: var(--color-primary-deep); }

.btn-outline { border-color: var(--color-primary); color: var(--color-primary); background: transparent; }
.btn-outline:hover { background: var(--color-primary); color: var(--color-on-primary); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  color: var(--color-ink);
  transition: color .18s ease;
}
.link-arrow .lucide { width: 18px; height: 18px; color: var(--color-primary); transition: color .18s ease, transform .18s ease; }
.link-arrow:hover { color: var(--color-primary-lift); }
.link-arrow:hover .lucide { color: var(--color-primary-lift); transform: translate(2px, -2px); }

/* ---------- Decoration ---------- */
.dot-scatter, .dot-grid { position: absolute; pointer-events: none; z-index: 0; }
.dot-grid {
  width: 132px; height: 132px;
  background-image: radial-gradient(var(--dot-soft) 2px, transparent 2.4px);
  background-size: 22px 22px;
  opacity: .9;
}
.confetti { position: absolute; border-radius: 50%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- Responsive section rhythm ---------- */
@media (max-width: 720px) {
  .section { padding-block: var(--section-y-sm); }
}