/* ===================================================================
   Daniel Norouzi — Portfolio
   Design system: navy / steel / muted gold, telemetry-inspired
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Light theme (default) */
  --bg: #EDEAE2;
  --bg-alt: #E3DFD4;
  --surface: #FFFFFF;
  --navy: #0A1628;
  --navy-soft: #152A47;
  --steel: #5B6B82;
  --steel-light: #8C97A8;
  --gold: #B8893E;
  --gold-bright: #C8A04E;
  --border: rgba(10, 22, 40, 0.12);
  --text-primary: #0A1628;
  --text-secondary: #45526A;
  --shadow: rgba(10, 22, 40, 0.08);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1180px;
  --transition: 0.25s ease;
}

[data-theme="dark"] {
  --bg: #0A1628;
  --bg-alt: #0E1D33;
  --surface: #152A47;
  --navy: #EDEAE2;
  --navy-soft: #C8D2E0;
  --steel: #8C97A8;
  --steel-light: #5B6B82;
  --gold: #D9B566;
  --gold-bright: #E8C97A;
  --border: rgba(232, 201, 122, 0.15);
  --text-primary: #EDEAE2;
  --text-secondary: #AEB8C9;
  --shadow: rgba(0, 0, 0, 0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

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

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===================== Telemetry ticker ===================== */
.ticker {
  background: var(--navy);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--gold);
  overflow: hidden;
  white-space: nowrap;
}
[data-theme="dark"] .ticker { background: #060D18; color: var(--gold-bright); }

.ticker-track {
  display: inline-flex;
  padding: 7px 0;
  animation: ticker-scroll 32s linear infinite;
}
.ticker-track span {
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.ticker-track span::after {
  content: '/';
  color: var(--gold-bright);
  margin-left: 28px;
}
@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===================== Header / Nav ===================== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.logo span { color: var(--gold); }

nav.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  color: var(--text-secondary);
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-radius: 3px;
  transition: color var(--transition), background var(--transition);
}
.nav-link .tick { color: var(--gold); font-weight: 600; }
.nav-link:hover, .nav-link.active { color: var(--text-primary); background: var(--bg-alt); }

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: 12px;
  font-size: 1rem;
  transition: border-color var(--transition), transform 0.2s ease;
}
.theme-toggle:hover { border-color: var(--gold); transform: rotate(15deg); }
.theme-toggle:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.mobile-toggle { display: none; }

@media (max-width: 760px) {
  nav.main-nav { display: none; }
  .mobile-toggle {
    display: flex;
    background: none;
    border: none;
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    align-items: center;
    gap: 6px;
  }
  nav.main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 32px 20px;
    gap: 2px;
  }
}

/* ===================== Hero ===================== */
.hero {
  padding: 88px 0 64px;
  position: relative;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
  max-width: 900px;
}
.hero h1 em {
  font-style: normal;
  color: var(--gold);
  position: relative;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding: 13px 26px;
  border-radius: 3px;
  border: 1px solid var(--navy);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-primary { background: var(--navy); color: var(--bg); }
.btn-primary:hover { background: var(--gold); border-color: var(--gold); color: var(--navy); }
.btn-ghost { background: transparent; color: var(--text-primary); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* Hero stat strip — the "telemetry" signature element */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--surface);
}
.stat-cell {
  padding: 20px 22px;
  border-right: 1px solid var(--border);
  position: relative;
}
.stat-cell:last-child { border-right: none; }
.stat-cell .sector {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 8px;
}
.stat-cell .value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.7rem;
  display: block;
  line-height: 1;
}
.stat-cell .label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 4px;
}

@media (max-width: 760px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .stat-cell:nth-child(2) { border-right: none; }
}

/* ===================== Section structure ===================== */
section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }

.sector-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sector-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-intro {
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 48px;
}

/* ===================== About / Bio ===================== */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}

.headshot-frame {
  aspect-ratio: 4/5;
  background: var(--surface);
  border: 1px dashed var(--steel-light);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.bio-text p { margin-bottom: 18px; color: var(--text-secondary); }
.bio-text p:first-child { font-size: 1.05rem; color: var(--text-primary); }

@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; }
  .headshot-frame { max-width: 240px; }
}

/* ===================== Skills ===================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.skill-card {
  background: var(--surface);
  padding: 28px 26px;
}
.skill-card h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  padding: 5px 10px;
  background: var(--bg-alt);
  border-radius: 3px;
  color: var(--text-secondary);
}

@media (max-width: 900px) {
  .skills-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .skills-grid { grid-template-columns: 1fr; }
}

/* ===================== Project cards (home preview) ===================== */
.project-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.project-card:hover { transform: translateY(-4px); border-color: var(--gold); }

.project-thumb {
  aspect-ratio: 16/10;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--steel-light);
  text-align: center;
  padding: 16px;
}

.project-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.project-tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 10px;
}
.project-card p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 18px; flex: 1; }

.project-links { display: flex; gap: 16px; font-family: var(--font-mono); font-size: 0.78rem; }
.project-links a { color: var(--text-primary); display: flex; align-items: center; gap: 6px; }
.project-links a:hover { color: var(--gold); }

@media (max-width: 760px) {
  .project-preview-grid { grid-template-columns: 1fr; }
}

/* ===================== Footer ===================== */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-links { display: flex; gap: 24px; font-family: var(--font-mono); font-size: 0.8rem; }
.footer-links a { color: var(--text-secondary); transition: color var(--transition); }
.footer-links a:hover { color: var(--gold); }
.footer-note { font-family: var(--font-mono); font-size: 0.72rem; color: var(--steel-light); margin-top: 24px; }

/* ===================== Page header (projects/blog) ===================== */
.page-header {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--border);
}
.page-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.page-header p { color: var(--text-secondary); max-width: 600px; }

/* ===================== Full project grid (projects page) ===================== */
.full-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  padding: 56px 0;
}
@media (max-width: 760px) {
  .full-projects-grid { grid-template-columns: 1fr; }
}

.project-detail-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.project-detail-card .project-thumb { aspect-ratio: 16/9; }
.project-detail-card .project-body { padding: 28px; }
.project-detail-card .feature-list {
  list-style: none;
  margin: 16px 0 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.project-detail-card .feature-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  gap: 10px;
}
.project-detail-card .feature-list li::before {
  content: '—';
  color: var(--gold);
  flex-shrink: 0;
}
.status-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.status-badge.in-progress { background: rgba(184, 137, 62, 0.14); color: var(--gold); }
.status-badge.complete { background: rgba(91, 168, 107, 0.14); color: #4F9A60; }
.status-badge.planned { background: rgba(91, 107, 130, 0.14); color: var(--steel); }
.status-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ===================== Blog stub ===================== */
.empty-state {
  text-align: center;
  padding: 100px 24px;
  border: 1px dashed var(--steel-light);
  border-radius: 4px;
  margin: 40px 0 80px;
}
.empty-state .sector-num {
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.empty-state h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 14px;
}
.empty-state p {
  color: var(--text-secondary);
  max-width: 440px;
  margin: 0 auto 28px;
}

/* ===================== Animations ===================== */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.in-view { opacity: 1; transform: translateY(0); }