/* ============================================================
   IRSHAN KHAN — PORTFOLIO SYSTEM
   Shared stylesheet for all pages
============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Mono:wght@300;400;500&family=Syne:wght@400;700;800&display=swap');

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  --ink:          #0a0a0f;
  --paper:        #f5f3ee;
  --cream:        #edeae2;
  --accent:       #c8410a;
  --accent-lt:    #e8956d;
  --muted:        #8a8680;
  --border:       rgba(10,10,15,0.11);
  --border-dark:  rgba(245,243,238,0.1);
  --shadow:       0 4px 32px rgba(10,10,15,0.08);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-ui:      'Syne', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --max-w:    1320px;
  --pad-x:    clamp(1.5rem, 5vw, 4rem);
  --pad-sect: clamp(4rem, 8vw, 7rem);
}

/* ── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
img  { display: block; max-width: 100%; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.65;
  overflow-x: hidden;
}

/* Grain texture */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 9999; opacity: 0.35;
}

/* ── NAV ────────────────────────────────────────────────── */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 var(--pad-x);
  height: 64px;
  background: rgba(245,243,238,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.site-nav.scrolled { box-shadow: 0 2px 24px rgba(10,10,15,0.07); }

.nav-logo {
  font-family: var(--font-ui); font-weight: 800;
  font-size: 0.9rem; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--ink);
}
.nav-logo span { color: var(--accent); }

.nav-menu { display: flex; align-items: center; gap: 0.25rem; }

.nav-menu a {
  font-family: var(--font-mono); font-size: 0.63rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
  padding: 0.4rem 0.8rem;
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--accent); }

.nav-cta {
  margin-left: 0.5rem;
  font-family: var(--font-mono) !important; font-size: 0.63rem !important;
  color: var(--ink) !important;
  padding: 0.5rem 1.2rem !important;
  border: 1px solid var(--border); letter-spacing: 0.12em;
  transition: background 0.2s, color 0.2s !important;
}
.nav-cta:hover { background: var(--ink) !important; color: var(--paper) !important; }

/* Hamburger */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 4px; background: none; border: none;
}
.nav-toggle span { display: block; width: 20px; height: 1.5px; background: var(--ink); transition: transform 0.3s, opacity 0.3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── LAYOUT UTILITIES ───────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--pad-x); }

.page-wrap { padding-top: 64px; }

.section { padding: var(--pad-sect) var(--pad-x); max-width: var(--max-w); margin: 0 auto; }

.section-full { padding: var(--pad-sect) var(--pad-x); }

/* ── SECTION HEADER ─────────────────────────────────────── */
.sec-head {
  display: flex; align-items: baseline; gap: 1.2rem;
  margin-bottom: clamp(2.5rem, 4vw, 4rem);
}
.sec-num { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em; color: var(--accent); flex-shrink: 0; }
.sec-title { font-family: var(--font-display); font-size: clamp(2.2rem, 4vw, 3.6rem); font-weight: 300; line-height: 1; }
.sec-title em { font-style: italic; color: var(--accent); }
.sec-rule { flex: 1; height: 1px; background: var(--border); margin-left: 0.8rem; }

/* Dark variants */
.dark .sec-title { color: var(--paper); }
.dark .sec-rule { background: var(--border-dark); }
.dark .sec-num { color: var(--accent-lt); }

/* ── PAGE HERO ──────────────────────────────────────────── */
.page-hero {
  background: var(--ink);
  padding: clamp(5rem, 10vw, 9rem) var(--pad-x) clamp(3.5rem, 6vw, 6rem);
}
.page-hero-inner { max-width: var(--max-w); margin: 0 auto; }
.page-hero-eyebrow {
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent-lt);
  display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1.4rem;
}
.page-hero-eyebrow::before { content: ''; display: block; width: 24px; height: 1px; background: var(--accent); }
.page-hero-title {
  font-family: var(--font-display); font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 300; line-height: 0.95; letter-spacing: -0.02em; color: var(--paper);
  margin-bottom: 1.6rem;
}
.page-hero-title em { font-style: italic; color: var(--accent-lt); }
.page-hero-desc { font-size: 1.05rem; line-height: 1.8; color: rgba(245,243,238,0.58); max-width: 560px; }

/* ── TYPOGRAPHY ─────────────────────────────────────────── */
.label {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent);
}
.label-muted {
  font-family: var(--font-mono); font-size: 0.6rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}

.display-xl { font-family: var(--font-display); font-size: clamp(3.2rem, 6vw, 5.5rem); font-weight: 300; line-height: 0.95; letter-spacing: -0.02em; }
.display-lg { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 300; line-height: 1.05; }
.display-md { font-family: var(--font-display); font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 300; line-height: 1.2; }

.body-lg { font-size: 1.1rem; line-height: 1.8; color: #3a3834; }
.body-md { font-size: 0.95rem; line-height: 1.8; color: #4a4844; }
.body-sm { font-size: 0.88rem; line-height: 1.75; color: #5a5650; }

/* ── LINKS ──────────────────────────────────────────────── */
.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); border-bottom: 1px solid transparent;
  transition: border-color 0.2s, gap 0.2s;
}
.link-arrow::after { content: '→'; }
.link-arrow:hover { border-bottom-color: var(--accent); gap: 0.8rem; }

.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  padding: 0.85rem 1.8rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: #222; }
.btn-outline { border: 1px solid var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #b83808; }
.btn-ghost { border: 1px solid var(--border-dark); color: var(--paper); }
.btn-ghost:hover { background: rgba(255,255,255,0.08); }

/* ── CARDS ──────────────────────────────────────────────── */
.card-grid { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); }
.card-grid-2 { grid-template-columns: repeat(2,1fr); }
.card-grid-3 { grid-template-columns: repeat(3,1fr); }
.card-grid-4 { grid-template-columns: repeat(4,1fr); }

.card {
  background: var(--paper); padding: 2.4rem;
  display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  transition: background 0.25s;
}
.card:hover { background: #f0ede6; }

.card-dark { background: var(--ink); }
.card-dark:hover { background: #111; }

.card-accent-bar::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 3px; height: 0;
  background: var(--accent);
  transition: height 0.4s ease;
}
.card-accent-bar:hover::before { height: 100%; }

.card-img { width: 100%; height: 200px; object-fit: cover; border-bottom: 1px solid var(--border); filter: saturate(0.82); transition: filter 0.4s, transform 0.5s; }
.card:hover .card-img { filter: saturate(1.05); transform: scale(1.02); }

.card-tag {
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border); color: var(--muted);
  display: inline-block;
}
.card-tag-accent {
  border-color: rgba(200,65,10,0.2); color: var(--accent);
  background: rgba(200,65,10,0.06);
}

/* ── STATS ROW ──────────────────────────────────────────── */
.stats-row {
  display: grid; gap: 1px; background: var(--border);
  border: 1px solid var(--border);
}
.stats-row-4 { grid-template-columns: repeat(4,1fr); }
.stats-row-3 { grid-template-columns: repeat(3,1fr); }

.stat-cell { background: var(--paper); padding: 2.4rem 2rem; text-align: center; }
.stat-num { font-family: var(--font-display); font-size: clamp(2.4rem,4vw,3.6rem); font-weight: 300; color: var(--accent); line-height: 1; }
.stat-label { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-top: 0.5rem; line-height: 1.4; }

/* Dark stat cells */
.stat-cell-dark { background: var(--ink); }
.stat-cell-dark .stat-num { color: var(--accent-lt); }
.stat-cell-dark .stat-label { color: rgba(245,243,238,0.45); }

/* ── TAGS / PILLS ───────────────────────────────────────── */
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag  {
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.09em; text-transform: uppercase;
  padding: 0.28rem 0.72rem;
  border: 1px solid var(--border); color: var(--muted);
  background: var(--paper);
}
.tag-dark { border-color: var(--border-dark); color: rgba(245,243,238,0.5); background: transparent; }
.pill {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.32rem 0.9rem; background: var(--ink); color: var(--paper); border-radius: 100px;
}

/* ── INFO CALLOUT ───────────────────────────────────────── */
.callout {
  border-left: 3px solid var(--accent);
  background: rgba(200,65,10,0.05);
  padding: 1.2rem 1.6rem;
  font-family: var(--font-display); font-size: 1rem; line-height: 1.7; color: #3a3834;
}

/* ── DIVIDER ────────────────────────────────────────────── */
.divider { height: 1px; background: var(--border); margin: 0; }
.divider-dark { background: var(--border-dark); }

/* ── FOOTER ─────────────────────────────────────────────── */
.site-footer {
  background: var(--ink); color: var(--paper);
  padding: clamp(3rem,6vw,5rem) var(--pad-x);
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem;
}

.footer-name {
  font-family: var(--font-display); font-size: 2.6rem;
  font-weight: 300; line-height: 1; margin-bottom: 1rem;
}
.footer-name em { font-style: italic; color: var(--accent); }
.footer-bio { font-size: 0.95rem; line-height: 1.8; color: rgba(245,243,238,0.55); max-width: 400px; }

.footer-col-label {
  font-family: var(--font-mono); font-size: 0.58rem;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 0.9rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.8rem; }
.footer-links a {
  font-family: var(--font-display); font-size: 1.1rem;
  color: rgba(245,243,238,0.75);
  display: flex; align-items: center; gap: 0.6rem;
  transition: color 0.2s;
}
.footer-links a::before { content: '→'; font-size: 0.75rem; color: var(--accent); }
.footer-links a:hover { color: var(--accent-lt); }

.footer-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.footer-bottom {
  border-top: 1px solid var(--border-dark);
  margin-top: 2.5rem; padding-top: 1.4rem;
  grid-column: 1/-1;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-copy { font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.1em; color: rgba(245,243,238,0.28); }

/* ── ANIMATIONS ─────────────────────────────────────────── */
@keyframes fadeUp   { from { opacity:0; transform:translateY(22px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn   { from { opacity:0; } to { opacity:1; } }
@keyframes slideIn  { from { opacity:0; transform:translateX(-16px); } to { opacity:1; transform:translateX(0); } }

.anim-fade-up  { opacity:0; animation: fadeUp  0.75s ease forwards; }
.anim-fade-in  { opacity:0; animation: fadeIn  0.9s ease forwards; }
.anim-slide-in { opacity:0; animation: slideIn 0.7s ease forwards; }

.reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-left {
  opacity: 0; transform: translateX(-18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal-left.visible { opacity:1; transform:translateX(0); }

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .card-grid-3, .card-grid-4 { grid-template-columns: repeat(2,1fr); }
  .stats-row-4 { grid-template-columns: repeat(2,1fr); }
  .site-footer { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-menu { display:none; position:fixed; top:64px; left:0; right:0;
    background:rgba(245,243,238,0.97); flex-direction:column; gap:0;
    border-bottom:1px solid var(--border); padding: 0.5rem 0; }
  .nav-menu.open { display:flex; }
  .nav-menu a { display:block; padding:0.9rem var(--pad-x); border-bottom:1px solid var(--border); font-size:0.7rem; }
  .nav-cta { margin:0.5rem var(--pad-x) !important; display:block; text-align:center; }
  .nav-toggle { display:flex; }
  .card-grid-2, .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
  .stats-row-3, .stats-row-4 { grid-template-columns: repeat(2,1fr); }
  .footer-bottom { flex-direction:column; gap:0.5rem; align-items:flex-start; }
}

@media (max-width: 480px) {
  .stats-row-3, .stats-row-4 { grid-template-columns: 1fr; }
}
</style>