/* ===== CHINMAY KADLI PORTFOLIO — STYLE.CSS =====
   Design System: Hybrid Font + Classic Gold/Rust + Noise Grain
   ========================================================== */

/* ===== TOKENS ===== */
:root {
  --bg: #F7F7F4;
  --bg2: #EFEFEA;
  --card: #FCFCFB;
  --text: #1C1B1A;
  --text2: #5C5B57;
  --text3: #8A8985;
  --border: #E2E1DC;
  --accent: #BF8C0A;
  --accent-soft: rgba(191,140,10,0.07);
  --accent-border: rgba(191,140,10,0.3);
  --accent-glow: rgba(191,140,10,0.12);
  --success: #2D7A56;
  --info: #3D6385;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.07);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
  --noise-opacity: 0.40;
}
[data-theme="dark"] {
  --bg: #121212;
  --bg2: #1A1A1A;
  --card: #1E1E1E;
  --text: #F0F0F0;
  --text2: #A3A3A3;
  --text3: #737373;
  --border: #2C2C2C;
  --accent: #E06A46;
  --accent-soft: rgba(224,106,70,0.07);
  --accent-border: rgba(224,106,70,0.3);
  --accent-glow: rgba(224,106,70,0.12);
  --success: #4E9B79;
  --info: #6C8EAD;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.25);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.3);
  --noise-opacity: 0.15;
}

/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Sora', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* ===== NOISE GRAIN TEXTURE ===== */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--noise-opacity);
  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='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}
body > * { position: relative; z-index: 1; }

/* ===== SELECTION ===== */
::selection { background: var(--accent-glow); color: var(--text); }

/* ===== SCROLL PROGRESS ===== */
.scroll-progress {
  position: fixed;
  top: 56px;
  left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 99;
  width: 0%;
  transition: width 0.1s;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
}
.nav-brand {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.3px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-right a {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text3);
  text-decoration: none;
  transition: color 0.15s;
}
.nav-right a:hover { color: var(--accent); }
.theme-toggle {
  width: 32px; height: 32px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--card);
  color: var(--text2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: border-color 0.15s;
}
.theme-toggle:hover { border-color: var(--accent); }

/* ===== LAYOUT ===== */
.container { max-width: 880px; margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }
.section-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--accent);
  margin-bottom: 24px;
}
.section-divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ===== BUTTONS ===== */
.btn-primary {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.5px;
  padding: 10px 24px;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  display: inline-block;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-secondary {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.5px;
  padding: 10px 24px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  display: inline-block;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* ===== HERO ===== */
.hero { padding: 48px 0 64px; text-align: center; }
.hero-speed { margin-bottom: 40px; }
.speed-toggle {
  display: inline-flex;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px;
}
.speed-btn {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  padding: 7px 16px;
  border: none;
  background: transparent;
  color: var(--text3);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s cubic-bezier(0.25, 1, 0.5, 1);
}
.speed-btn.active {
  background: var(--card);
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.hero-name {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 48px;
  letter-spacing: -1.5px;
  color: var(--text);
  margin-bottom: 8px;
}
.hero-role {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text2);
  margin-bottom: 32px;
}
.hero-tagline {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.3px;
  color: var(--text);
  max-width: 540px;
  margin: 0 auto 12px;
  line-height: 1.35;
}
.hero-anchor {
  font-family: 'Sora', sans-serif;
  font-size: 14px;
  color: var(--text2);
  margin-bottom: 32px;
  letter-spacing: 0.3px;
}
.hero-anchor span { color: var(--accent); margin: 0 8px; }
.hero-stamp {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 6px 16px;
  border: 1px solid var(--accent-border);
  color: var(--accent);
  margin-bottom: 32px;
}
.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== METRICS ===== */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.metric-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 28px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.2s, border-color 0.2s;
  cursor: default;
}
.metric-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.metric-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text3);
  margin-bottom: 8px;
}
.metric-value {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 40px;
  letter-spacing: -1px;
  color: var(--text);
  line-height: 1.1;
}
.metric-context {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--success);
  margin-top: 6px;
}

/* ===== PROOF WALL ===== */
.proof-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.proof-cell { background: var(--card); padding: 24px; }
.proof-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 12px;
}
.proof-before {
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 10px;
  line-height: 1.5;
}
.proof-arrow {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 10px;
}
.proof-after {
  font-weight: 600;
  font-size: 14px;
  line-height: 1.5;
}
.proof-after .hl { color: var(--accent); }

/* ===== ABOUT ===== */
.about-content { max-width: 660px; }
.about-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text2);
  margin-bottom: 12px;
}
.about-text strong { color: var(--text); font-weight: 600; }

/* ===== CASE STUDY CARDS ===== */
.case-cards { display: flex; flex-direction: column; gap: 16px; }
.case-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 28px 28px 24px;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
  position: relative;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  display: block;
}
.case-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}
.case-ref {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--text3);
  position: absolute;
  top: 12px;
  right: 16px;
}
.case-hook {
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  font-size: 17px;
  margin-bottom: 10px;
  padding-right: 80px;
  line-height: 1.4;
}
.case-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.tag-skill {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 3px 8px;
  border: 1px solid var(--accent-border);
  color: var(--accent);
}
.tag-meta {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  color: var(--text2);
}
.case-desc {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.65;
  margin-bottom: 14px;
}
.case-link {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: letter-spacing 0.2s;
}
.case-card:hover .case-link { letter-spacing: 1px; }

/* ===== DUBLIN FIT MATRIX ===== */
.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.matrix-table thead th {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text3);
  text-align: left;
  padding: 12px 16px;
  border-bottom: 2px solid var(--accent);
  background: var(--bg2);
}
.matrix-table tbody td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.6;
  color: var(--text2);
}
.matrix-table tbody td:first-child {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}
.matrix-table tbody tr:hover { background: var(--accent-soft); }
.matrix-table tbody tr:last-child td { border-bottom: none; }

/* ===== CONTACT ===== */
.contact-text h3 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 22px;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}
.contact-text p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 20px;
}
.contact-links { display: flex; flex-direction: column; gap: 8px; }
.contact-link {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  text-decoration: none;
  transition: letter-spacing 0.15s;
}
.contact-link:hover { letter-spacing: 0.5px; }

/* ===== PEAK END ===== */
.peak-end { text-align: center; padding: 80px 0; }
.peak-statement {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 28px;
  letter-spacing: -0.5px;
  max-width: 560px;
  margin: 0 auto 12px;
  line-height: 1.4;
}
.peak-sub {
  font-size: 15px;
  color: var(--text2);
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
}
.footer-line { font-size: 13px; color: var(--text3); margin-bottom: 4px; }
.footer-copy {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--text3);
  letter-spacing: 0.5px;
}

/* ===== CV MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 32px;
  max-width: 440px;
  width: 90%;
  box-shadow: var(--shadow-lg);
}
.modal-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 8px;
}
.modal-subtitle {
  font-size: 13px;
  color: var(--text2);
  margin-bottom: 24px;
}
.modal-option {
  display: block;
  width: 100%;
  text-align: left;
  font-family: 'Sora', sans-serif;
  font-size: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  margin-bottom: 8px;
  transition: all 0.15s;
}
.modal-option:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.modal-option .opt-title { font-weight: 600; margin-bottom: 2px; }
.modal-option .opt-desc { font-size: 12px; color: var(--text3); }
.modal-close {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--text3);
  background: none;
  border: none;
  cursor: pointer;
  margin-top: 16px;
  transition: color 0.15s;
}
.modal-close:hover { color: var(--accent); }

/* ===== CASE STUDY PAGES ===== */
.cs-hero {
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--border);
}
.cs-back {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--text3);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 24px;
  transition: color 0.15s;
}
.cs-back:hover { color: var(--accent); }
.cs-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 32px;
  letter-spacing: -0.8px;
  margin-bottom: 8px;
  line-height: 1.2;
}
.cs-hook {
  font-size: 16px;
  color: var(--text2);
  margin-bottom: 20px;
  line-height: 1.5;
}
.cs-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.cs-meta-item {
  font-size: 12px;
  color: var(--text2);
}
.cs-meta-item strong {
  display: block;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text3);
  margin-bottom: 2px;
  font-weight: 400;
}
.cs-section {
  padding: 48px 0;
}
.cs-section-title {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}
.cs-text {
  font-size: 15px;
  color: var(--text2);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 680px;
}
.cs-big-metric {
  display: inline-block;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 16px 24px;
  margin-top: 12px;
}
.cs-big-metric .bm-value {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 32px;
  letter-spacing: -0.5px;
  color: var(--accent);
}
.cs-big-metric .bm-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text3);
}
.cs-big-metric .bm-context {
  font-size: 12px;
  color: var(--text3);
  margin-top: 2px;
}

/* Before/After metrics grid */
.cs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.cs-metric-pair {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 16px;
  text-align: center;
}
.cs-mp-label {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text3);
  margin-bottom: 8px;
}
.cs-mp-before {
  font-size: 13px;
  color: var(--text3);
  text-decoration: line-through;
  margin-bottom: 4px;
}
.cs-mp-after {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: var(--accent);
  letter-spacing: -0.5px;
}

/* Insights list */
.cs-insights {
  list-style: none;
  margin-top: 16px;
}
.cs-insights li {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  padding: 8px 0 8px 20px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.cs-insights li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: 'Space Mono', monospace;
  font-size: 12px;
}
.cs-insights li:last-child { border-bottom: none; }

/* Takeaway + Challenge */
.cs-takeaway {
  background: var(--bg2);
  border-left: 3px solid var(--accent);
  padding: 24px;
  margin: 32px 0;
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 18px;
  color: var(--text);
  line-height: 1.4;
}
.cs-challenge {
  background: var(--card);
  border: 1px solid var(--accent-border);
  padding: 24px;
}
.cs-challenge-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  margin-bottom: 8px;
}
.cs-challenge-q {
  font-family: 'Sora', sans-serif;
  font-size: 16px;
  font-weight: 500;
  font-style: italic;
  color: var(--text);
  margin-bottom: 6px;
}
.cs-challenge-ctx {
  font-size: 12px;
  color: var(--text3);
}

/* Recommendations list */
.cs-recs {
  list-style: none;
  counter-reset: rec;
}
.cs-recs li {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  padding: 10px 0 10px 36px;
  border-bottom: 1px solid var(--border);
  position: relative;
  counter-increment: rec;
}
.cs-recs li::before {
  content: counter(rec);
  position: absolute;
  left: 0;
  top: 10px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--accent);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cs-recs li:last-child { border-bottom: none; }

/* ===== 404 PAGE ===== */
.four-oh-four {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
}
.four-oh-four h1 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 700;
  font-size: 48px;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.four-oh-four p {
  font-size: 16px;
  color: var(--text2);
  max-width: 420px;
  margin-bottom: 32px;
  line-height: 1.6;
}

/* ===== THREE-SPEED VISIBILITY ===== */
.speed-3min, .speed-deep { display: none; }
[data-speed="3min"] .speed-3min { display: block; }
[data-speed="deep"] .speed-3min,
[data-speed="deep"] .speed-deep { display: block; }
hr.speed-3min, hr.speed-deep { display: none; }
[data-speed="3min"] hr.speed-3min { display: block; }
[data-speed="deep"] hr.speed-3min,
[data-speed="deep"] hr.speed-deep { display: block; }

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero-name { font-size: 36px; }
  .hero-tagline { font-size: 22px; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-wall { grid-template-columns: 1fr; }
  .nav-right a.hide-mobile { display: none; }
  .matrix-table { font-size: 12px; }
  .matrix-table thead th { font-size: 9px; padding: 8px 10px; }
  .matrix-table tbody td { padding: 10px; }
  .cs-title { font-size: 26px; }
  .cs-metrics-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .hero-name { font-size: 30px; }
  .hero-tagline { font-size: 19px; }
  .metrics-grid { gap: 10px; }
  .metric-card { padding: 20px 12px; }
  .metric-value { font-size: 32px; }
  .container { padding: 0 16px; }
  .nav { padding: 0 16px; }
  .nav-brand { font-size: 16px; }
  .cs-title { font-size: 22px; }
  .cs-meta { grid-template-columns: 1fr; }
  .cs-metrics-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== PRINT ===== */
@media print {
  .nav, .scroll-progress, .speed-toggle, .theme-toggle, .modal-overlay { display: none !important; }
  body::after { display: none; }
  .speed-3min, .speed-deep { display: block !important; }
  body { background: #fff; color: #000; }
  .case-card { break-inside: avoid; }
}