/* ═══════════════════════════════════════════════
   SHREYAS Y D — DESIGN SYSTEM
   Typography: Fraunces (display) + DM Sans (body) + DM Mono (code/labels)
   Palette: Near-black ink · Warm cream paper · Burnt sienna accent · Forest teal · Gold
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,700;0,9..144,900;1,9..144,300;1,9..144,700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=DM+Mono:wght@400;500&display=swap');

/* ─── TOKENS ─── */
:root {
  --ink:        #0d0d10;
  --paper:      #f5f0e8;
  --cream:      #faf8f4;
  --white:      #ffffff;
  --accent:     #c0432a;   /* burnt sienna */
  --accent-lt:  #d9604a;
  --teal:       #1a6b5a;
  --gold:       #a87c2a;
  --navy:       #162040;
  --mid:        #5a5868;
  --faint:      #9896a4;
  --rule:       #e0dbd0;
  --rule-dark:  #2a2a36;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  --radius:     2px;
  --transition: 0.22s cubic-bezier(0.4,0,0.2,1);
  --shadow:     0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg:  0 16px 64px rgba(0,0,0,0.14);
}

/* ─── RESET ─── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; font-size:16px; }
img  { display:block; max-width:100%; }
a    { color:inherit; }

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

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width:3px; }
::-webkit-scrollbar-track { background: var(--paper); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius:2px; }

/* ─── SELECTION ─── */
::selection { background: var(--accent); color:#fff; }

/* ─── TYPOGRAPHY SCALE ─── */
.t-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
}
.t-eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: currentColor;
  flex-shrink: 0;
}

h1, .h1 {
  font-family: var(--font-display);
  font-size: clamp(52px, 9vw, 104px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -2px;
  color: var(--ink);
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1px;
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 700;
  line-height: 1.15;
}

.body-lg  { font-size:18px; font-weight:300; line-height:1.75; color:var(--mid); }
.body-md  { font-size:16px; line-height:1.7; }
.body-sm  { font-size:14px; line-height:1.6; color:var(--mid); }
.mono-sm  { font-family:var(--font-mono); font-size:11px; letter-spacing:1px; }

/* ─── LAYOUT ─── */
.container {
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 48px;
}

.container--wide  { max-width:1400px; padding:0 48px; }
.container--narrow { max-width:780px; }

.section {
  padding: 96px 0 72px;
}

/* ─── NAV ─── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  background: rgba(245,240,232,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}
.site-nav.scrolled {
  border-bottom-color: var(--rule);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  font-style: italic;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--mid);
  padding: 6px 14px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
  background: rgba(0,0,0,0.05);
}
.nav-links a.active { color: var(--accent); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--white);
  background: var(--accent);
  padding: 8px 18px;
  border-radius: var(--radius);
  transition: background var(--transition);
  white-space: nowrap;
}
.nav-cta:hover { background: var(--accent-lt); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  border: none;
  background: none;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn--primary:hover {
  background: var(--accent-lt);
  border-color: var(--accent-lt);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}
.btn--ghost:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.btn--ghost-white {
  background: transparent;
  color: rgba(255,255,255,0.8);
  border-color: rgba(255,255,255,0.3);
}
.btn--ghost-white:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}

/* ─── STAT CARD ─── */
.stat-card {
  padding: 28px 24px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.stat-card:hover::after { transform: scaleX(1); }

.stat-card__num {
  font-family: var(--font-display);
  font-size: clamp(34px, 3.5vw, 48px);
  font-weight: 900;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 8px;
}
.stat-card__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--mid);
  line-height: 1.4;
}

/* ─── SECTION DIVIDER ─── */
.section-divider {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 0;
}

/* ─── TAGS ─── */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 10px;
  background: rgba(0,0,0,0.05);
  border-radius: var(--radius);
  color: var(--mid);
}
.tag--accent {
  background: rgba(192,67,42,0.1);
  color: var(--accent);
}
.tag--teal {
  background: rgba(26,107,90,0.1);
  color: var(--teal);
}

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity:0; transform:translateY(24px); }
  to   { opacity:1; transform:translateY(0); }
}
@keyframes fadeIn {
  from { opacity:0; }
  to   { opacity:1; }
}
@keyframes slideRight {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.animate-fadeup {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-fadeup.in-view {
  opacity: 1;
  transform: translateY(0);
}

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

/* ─── FOOTER ─── */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.6);
  padding: 72px 48px 48px;
}

.site-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--rule-dark);
  margin-bottom: 40px;
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  font-style: italic;
  color: #fff;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.site-footer__brand span { color: var(--accent); }

.site-footer__tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--faint);
}

.footer-nav-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 20px;
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-list a {
  font-size: 14px;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-nav-list a:hover { color: #fff; }

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--faint);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .container, .container--wide { padding:0 24px; }
  .site-nav { padding:0 24px; }
  .site-footer { padding:56px 24px 40px; }

  .nav-links, .nav-cta { display:none; }
  .nav-hamburger { display:flex; }

  .site-footer__top { grid-template-columns:1fr 1fr; }
}

@media (max-width: 600px) {
  .site-footer__top { grid-template-columns:1fr; }
  .site-footer__bottom { flex-direction:column; align-items:flex-start; }
}

/* ─── MOBILE NAV OPEN ─── */
.site-nav.nav-open .nav-links {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  padding: 24px;
  gap: 0;
}
.site-nav.nav-open .nav-links a {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 13px;
}
.site-nav.nav-open .nav-cta {
  display: block;
  margin-top: 16px;
  text-align: center;
}