/* ============================================
   TOKENS
   ============================================ */
:root {
  --bg: #12151B;
  --surface: #191E26;
  --surface-2: #1F2530;
  --border: #2A3140;

  --text: #E9E6DE;
  --text-muted: #8B93A1;
  --text-dim: #5B6472;

  --amber: #C9873F;
  --amber-soft: rgba(201, 135, 63, 0.14);
  --teal: #4FA8A0;
  --teal-soft: rgba(79, 168, 160, 0.14);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --max-width: 1120px;
  --radius: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 15% 8%, rgba(201, 135, 63, 0.07), transparent 40%),
                     radial-gradient(circle at 85% 92%, rgba(79, 168, 160, 0.06), transparent 40%);
  pointer-events: none;
  z-index: 0;
}

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

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

::selection { background: var(--amber-soft); color: var(--text); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

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

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(18, 21, 27, 0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

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

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.nav-logo .dot { color: var(--amber); }

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--text); }

@media (max-width: 720px) {
  .nav-links { display: none; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--amber);
  color: #1A1206;
  font-weight: 500;
}
.btn-primary:hover {
  background: #DE9750;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.nav-resume {
  padding: 9px 18px;
  font-size: 0.78rem;
}

@media (max-width: 480px) {
  .nav-resume { padding: 8px 14px; }
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  z-index: 1;
  padding: 168px 32px 100px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--teal);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 5.5vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  max-width: 16ch;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 56ch;
  line-height: 1.65;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 90px;
}

/* ---- Signature: live request trace ---- */
.trace {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 22px 26px 26px;
  overflow-x: auto;
}

.trace-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}

.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-soft);
  flex-shrink: 0;
}

.trace-track {
  position: relative;
  display: flex;
  justify-content: space-between;
  min-width: 620px;
  padding: 0 4px;
}

.trace-line {
  position: absolute;
  top: 6px;
  left: 4px; right: 4px;
  height: 1px;
  background: var(--border);
  z-index: 0;
}

.trace-stage {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 1;
}

.stage-node {
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.trace-stage.active .stage-node {
  background: var(--amber);
  border-color: var(--amber);
  box-shadow: 0 0 0 5px var(--amber-soft);
}

.stage-name {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-dim);
  transition: color 0.3s ease;
}
.trace-stage.active .stage-name { color: var(--text); }

.ms {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.trace-stage.active .ms {
  opacity: 1;
  color: var(--amber);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  position: relative; z-index: 1;
  padding: 20px 0 120px;
  border-top: 1px solid var(--border);
  padding-top: 80px;
}

.about-text {
  font-size: 1.2rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 68ch;
}
.about-text::first-letter {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--amber);
  font-weight: 700;
}

/* ============================================
   SHARED SECTION HEADERS
   ============================================ */
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--amber);
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  margin-bottom: 48px;
  max-width: 22ch;
}

.work, .experience, .stack {
  position: relative; z-index: 1;
  padding: 40px 0 120px;
  border-top: 1px solid var(--border);
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.filter-btn:hover { border-color: var(--text-muted); color: var(--text); }
.filter-btn.active {
  background: var(--amber-soft);
  border-color: var(--amber);
  color: var(--amber);
}

/* ============================================
   CARDS
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 720px) {
  .card-grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 28px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.25s ease;
}
.card.in-view { opacity: 1; transform: translateY(0); }
.card:hover {
  border-color: var(--amber);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}

.card-metric {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--teal);
  white-space: nowrap;
  flex-shrink: 0;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  list-style: none;
}
.card-tags li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 3px;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
  display: flex;
  flex-direction: column;
}

.tl-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-top: 1px solid var(--border);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.tl-row.in-view { opacity: 1; transform: translateY(0); }
.tl-row:last-child { border-bottom: 1px solid var(--border); }

.tl-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--amber);
  padding-top: 3px;
}

.tl-content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.tl-org {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--teal);
  margin-bottom: 10px;
}

.tl-content p:last-child {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 62ch;
}

@media (max-width: 560px) {
  .tl-row { grid-template-columns: 1fr; gap: 8px; }
}

/* ============================================
   STACK
   ============================================ */
.stack-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.stack-group {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stack-group.in-view { opacity: 1; transform: translateY(0); }

.stack-group h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.stack-list {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 2;
  word-spacing: 2px;
}

/* ============================================
   CONTACT / FOOTER
   ============================================ */
.contact {
  position: relative; z-index: 1;
  padding: 40px 0 60px;
  border-top: 1px solid var(--border);
}

.contact-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-top: -28px;
  margin-bottom: 40px;
}

.contact-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.copy-icon {
  font-size: 0.9rem;
  opacity: 0.7;
}

.clocks {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 60px;
}

.clock {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
}
.clock-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.clock-time {
  font-size: 1rem;
  color: var(--teal);
}
.clock-sep {
  width: 1px;
  height: 24px;
  background: var(--border);
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ============================================
   TOAST
   ============================================ */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-2);
  border: 1px solid var(--amber);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 12px 22px;
  border-radius: var(--radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 200;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}