/* ──────────────────────────────────────────────────────────────────────
   Jason Nguyen — portfolio
   Dark theme. Glassmorphism. No framework. Ambient color tied to shelf.
   ─────────────────────────────────────────────────────────────────── */

:root {
  /* Health-driven accent — switched by JS via [data-health] */
  --accent: #00d4b3;          /* teal — healthy */
  --accent-soft: #00d4b324;
  --accent-glow: #00d4b340;
  --accent-deep: #008a73;

  --bg: #07090a;
  --bg-deep: #050708;
  --surface: rgba(20, 26, 28, 0.55);
  --surface-strong: rgba(28, 36, 38, 0.78);
  --surface-line: rgba(255, 255, 255, 0.06);
  --surface-line-strong: rgba(255, 255, 255, 0.12);

  --ink: #e8eef0;
  --ink-soft: #b6c2c5;
  --ink-quiet: #768285;
  --ink-faint: #495154;

  --warn: #ffbe55;
  --crit: #ff5f6d;

  --radius-card: 18px;
  --radius-pill: 999px;
  --radius-tag: 7px;

  --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.32), 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  --shadow-card-hover: 0 10px 36px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(255, 255, 255, 0.08) inset;

  --grid-gap: 24px;
  --section-pad: clamp(56px, 8vw, 120px);
  --container: 1180px;

  --t-ambient: 1.8s cubic-bezier(.4, 0, .2, 1);
  --t-snap: 180ms cubic-bezier(.3, 0, .3, 1);

  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ── Ambient health states ─────────────────────────────────────────── */
html[data-health="healthy"] {
  --accent: #00d4b3;
  --accent-soft: #00d4b324;
  --accent-glow: #00d4b340;
  --accent-deep: #008a73;
}
html[data-health="warn"] {
  --accent: #ffbe55;
  --accent-soft: #ffbe5524;
  --accent-glow: #ffbe5540;
  --accent-deep: #b07a14;
}
html[data-health="critical"] {
  --accent: #ff5f6d;
  --accent-soft: #ff5f6d24;
  --accent-glow: #ff5f6d40;
  --accent-deep: #a82a36;
}

html, body {
  background: var(--bg);
  color: var(--ink);
  margin: 0;
  padding: 0;
  min-height: 100%;
  scroll-behavior: smooth;
  transition: background-color var(--t-ambient);
}

body {
  overflow-x: hidden;
  line-height: 1.55;
  font-size: 16px;
}

* { box-sizing: border-box; }
a { color: var(--accent); text-decoration: none; transition: color var(--t-snap); }
a:hover { color: var(--ink); }
abbr { text-decoration: none; border-bottom: 1px dashed var(--ink-quiet); cursor: help; }

button, select, input {
  font-family: inherit;
  color: inherit;
  background: transparent;
  border: none;
}

/* ── Hero ───────────────────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding: 0 clamp(20px, 4vw, 56px);
  overflow: hidden;
  isolation: isolate;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 50% at 30% 35%, black 0%, transparent 75%);
  z-index: -2;
  pointer-events: none;
}

.bg-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 18% 30%, var(--accent-glow) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 95% 80%, var(--accent-soft) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
  transition: background var(--t-ambient);
}

.topnav {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0 14px;
  z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: linear-gradient(to bottom, rgba(7, 9, 10, 0.6) 0%, rgba(7, 9, 10, 0) 100%);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 18px;
  color: var(--ink);
}
.logo-dot {
  width: 9px;
  height: 9px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-glow);
  transition: background var(--t-ambient), box-shadow var(--t-ambient);
}
.logo-text {
  font-family: "Inter", sans-serif;
  letter-spacing: -0.01em;
}

.topnav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: var(--ink-soft);
}
.topnav-links a {
  color: var(--ink-soft);
}
.topnav-links a:hover {
  color: var(--ink);
}

.ambient-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 10px;
  background: var(--surface);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-pill);
  font-size: 12px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  transition: border-color var(--t-ambient);
}
.ambient-pill[data-state="warn"] { border-color: var(--accent-deep); }
.ambient-pill[data-state="critical"] { border-color: var(--accent); }
.ambient-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 2.4s ease-in-out infinite;
  transition: background var(--t-ambient), box-shadow var(--t-ambient);
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.92); }
}

.hero-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: 80px 0 60px;
}

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-quiet);
  margin: 0 0 24px;
  font-weight: 500;
}

.hero-name {
  font-size: clamp(56px, 9vw, 128px);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
  padding-bottom: 0.08em;
  background: linear-gradient(135deg, var(--ink) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: background var(--t-ambient);
}

.hero-tag {
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 720px;
  margin: 0 0 36px;
}
.hero-tag em { color: var(--ink); font-style: normal; font-weight: 500; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 10px;
  border: 1px solid var(--surface-line-strong);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: background var(--t-snap), border-color var(--t-snap), transform var(--t-snap);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.btn:hover {
  background: var(--surface-strong);
  border-color: var(--accent);
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--accent);
  color: #0a0e0f;
  border-color: var(--accent);
  font-weight: 600;
  transition: background var(--t-ambient), color var(--t-snap), transform var(--t-snap);
}
.btn-primary:hover {
  color: #0a0e0f;
  background: var(--accent);
  filter: brightness(1.08);
}
.btn-ghost {
  background: transparent;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--ink-quiet);
  letter-spacing: 0.02em;
}
.hero-meta a { color: var(--ink-soft); }
.hero-meta a:hover { color: var(--accent); }

.scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--ink-quiet);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.cue-line {
  display: block;
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: cue 2.2s ease-in-out infinite;
}
@keyframes cue {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── Section ───────────────────────────────────────────────────────── */

.section {
  padding: var(--section-pad) clamp(20px, 4vw, 56px);
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}

.section-head { max-width: 760px; margin-bottom: 56px; }
.section-eyebrow {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 16px;
  font-variant-numeric: tabular-nums;
  transition: color var(--t-ambient);
}
.section-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0 0 18px;
  color: var(--ink);
}
.section-title-md { font-size: clamp(28px, 3.6vw, 40px); }
.section-lede {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.55;
  max-width: 640px;
}
.lede-note {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--ink-quiet);
}

/* ── Project grid ──────────────────────────────────────────────────── */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: var(--grid-gap);
}

.card {
  position: relative;
  padding: 28px 28px 24px;
  background: var(--surface);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-card);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  backdrop-filter: blur(14px) saturate(130%);
  box-shadow: var(--shadow-card);
  transition: border-color var(--t-snap), transform var(--t-snap), box-shadow var(--t-snap);
  overflow: hidden;
  isolation: isolate;
}
.card::before {
  /* subtle outline glow that picks up accent */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  padding: 1px;
  background: linear-gradient(135deg, var(--accent-soft) 0%, transparent 50%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: -1;
  transition: background var(--t-ambient);
}
.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.card-featured {
  background: linear-gradient(160deg, var(--surface-strong), var(--surface));
  border-color: var(--accent-deep);
}

.card-tag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.card-num {
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  color: var(--ink-quiet);
  font-weight: 500;
}
.card-badge {
  font-size: 11px;
  padding: 5px 10px;
  background: var(--surface-strong);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-tag);
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.card-badge a { color: inherit; }
.card-badge a:hover { color: var(--accent); }

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.live-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 1.6s ease-in-out infinite;
}

.card-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
  color: var(--ink);
}
.card-lede {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0 0 16px;
  line-height: 1.55;
}
.card-lede strong { color: var(--ink); font-weight: 500; }

.card-bullets {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.card-bullets li {
  position: relative;
  padding-left: 18px;
  line-height: 1.5;
}
.card-bullets li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--accent);
  transition: background var(--t-ambient);
}
.card-bullets strong { color: var(--accent); font-weight: 500; }

.card-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.card-stack span {
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-tag);
  color: var(--ink-soft);
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
}

.card-cta {
  display: inline-block;
  margin-top: 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.card-cta:hover { color: var(--ink); }

/* ── SCADA section ─────────────────────────────────────────────────── */

.section-shelf .section-head { margin-bottom: 32px; }

.scada-frame {
  background: var(--surface);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-card);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  backdrop-filter: blur(18px) saturate(130%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.scada-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--surface-line);
  background: rgba(0, 0, 0, 0.15);
  gap: 16px;
  flex-wrap: wrap;
}
.scada-mode { display: flex; align-items: center; gap: 12px; }
.mode-badge {
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-tag);
  border: 1px solid var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
.mode-badge.mode-replay {
  border-color: var(--ink-quiet);
  color: var(--ink-quiet);
  background: rgba(255, 255, 255, 0.04);
}
.mode-ts {
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--ink-quiet);
  letter-spacing: 0.02em;
}

.scada-vitals-mini {
  display: flex;
  gap: 18px;
  font-size: 12px;
  flex-wrap: wrap;
  flex: 1 1 auto;
  min-width: 0;
}
.mini-vital {
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.1;
}
.mini-label {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-quiet);
}
.mini-value {
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  color: var(--ink);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

.scada-canvas {
  padding: 32px clamp(16px, 3vw, 32px);
  min-height: 480px;
  display: flex;
  align-items: stretch;
  justify-content: center;
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, rgba(255, 255, 255, 0.015) 0%, transparent 70%),
    repeating-linear-gradient(
      to right,
      transparent 0 47px,
      rgba(255, 255, 255, 0.02) 47px 48px
    ),
    repeating-linear-gradient(
      to bottom,
      transparent 0 47px,
      rgba(255, 255, 255, 0.02) 47px 48px
    );
}
.scada-canvas svg {
  width: 100%;
  max-width: 1080px;
  height: auto;
}
.scada-swipe-hint { display: none; }  /* desktop default — hidden, only shown on narrow widths */

/* ── Timeline ──────────────────────────────────────────────────────── */

.scada-timeline {
  padding: 16px 22px 22px;
  border-top: 1px solid var(--surface-line);
  background: rgba(0, 0, 0, 0.15);
}
.timeline-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--ink-soft);
  flex-wrap: wrap;
}
.tl-btn {
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--surface-line-strong);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: background var(--t-snap), border-color var(--t-snap);
}
.tl-btn:hover { border-color: var(--accent); background: var(--surface-strong); }
.tl-live {
  margin-left: auto;
  color: var(--accent);
  letter-spacing: 0.12em;
  font-weight: 600;
  font-size: 11px;
}
.tl-live.is-active {
  background: var(--accent);
  color: #0a0e0f;
  border-color: var(--accent);
}
.tl-speed {
  font-size: 12px;
  padding: 5px 8px;
  border-radius: 7px;
  background: var(--surface);
  border: 1px solid var(--surface-line-strong);
  color: var(--ink-soft);
  cursor: pointer;
}
.tl-readout {
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--ink-quiet);
  letter-spacing: 0.02em;
}

.timeline-track {
  position: relative;
  height: 44px;
  display: flex;
  align-items: center;
}
.track-rail {
  position: absolute;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 2px;
}
.track-markers {
  position: absolute;
  left: 0;
  right: 0;
  height: 100%;
  pointer-events: none;
}
.tl-marker {
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--ink-quiet);
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
  cursor: pointer;
  transition: transform var(--t-snap);
}
.tl-marker[data-level="warn"] { background: var(--warn); }
.tl-marker[data-level="critical"] { background: var(--crit); }
.tl-marker[data-type="flag_cleared"] { background: #5ed694; opacity: 0.65; }
.tl-marker:hover { transform: scale(1.7); }
.tl-tooltip {
  position: absolute;
  bottom: 130%;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 12px;
  background: var(--surface-strong);
  border: 1px solid var(--surface-line);
  border-radius: 8px;
  font-size: 11px;
  white-space: nowrap;
  color: var(--ink);
  pointer-events: none;
  z-index: 5;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.track-input {
  position: relative;
  width: 100%;
  height: 44px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  z-index: 2;
}
.track-input:focus { outline: none; }
.track-input::-webkit-slider-runnable-track {
  height: 4px;
  background: transparent;
}
.track-input::-moz-range-track {
  height: 4px;
  background: transparent;
}
.track-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0a0e0f;
  box-shadow: 0 0 12px var(--accent-glow);
  cursor: grab;
  margin-top: -6px;
  transition: transform var(--t-snap), background var(--t-ambient);
}
.track-input::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.15); }
.track-input::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #0a0e0f;
  box-shadow: 0 0 12px var(--accent-glow);
  cursor: grab;
}

.track-ends {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  display: flex;
  justify-content: space-between;
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  pointer-events: none;
}

/* ── Skills ────────────────────────────────────────────────────────── */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.skill-cluster {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-card);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: border-color var(--t-snap);
}
.skill-cluster:hover { border-color: var(--accent); }
.skill-cluster h4 {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  transition: color var(--t-ambient);
}
.skill-cluster ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.skill-cluster li::before {
  content: "› ";
  color: var(--accent-deep);
  transition: color var(--t-ambient);
}

/* ── About + Contact ───────────────────────────────────────────────── */

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--grid-gap);
}
.about-card,
.contact-card {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-card);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.about-body {
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin: 0 0 12px;
}
.about-body-quiet { color: var(--ink-quiet); font-size: 14.5px; }

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--surface-line);
  font-size: 14.5px;
}
.contact-list li:last-child { border-bottom: none; padding-bottom: 0; }
.contact-label {
  flex: 0 0 70px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-quiet);
}

/* ── Footer ────────────────────────────────────────────────────────── */

.site-foot {
  border-top: 1px solid var(--surface-line);
  padding: 32px clamp(20px, 4vw, 56px);
  margin-top: 60px;
}
.foot-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--ink-quiet);
  flex-wrap: wrap;
  gap: 14px;
}
.foot-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: var(--ink-soft);
}
.foot-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.02em;
}
.foot-cr em { font-style: italic; color: var(--accent); transition: color var(--t-ambient); }

/* ── Responsive ────────────────────────────────────────────────────── */

@media (max-width: 760px) {
  .topnav-links { display: none; }
  .hero-inner { padding: 64px 0 40px; }
  .hero-actions { width: 100%; }
  .btn { flex: 1 1 auto; justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .scada-toolbar { padding: 12px 14px; }
  .scada-vitals-mini {
    gap: 0;
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }
  .scada-vitals-mini .mini-vital {
    flex: 0 0 auto;
    min-width: 86px;
    padding: 0 14px 0 0;
    scroll-snap-align: start;
  }
  .mini-value { font-size: 13px; }
  .scada-canvas {
    padding: 16px 0 8px;
    min-height: auto;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    background-size: 24px 24px, 24px 24px;
  }
  .scada-canvas svg {
    min-width: 920px;
    width: 920px;
  }
  .scada-swipe-hint {
    display: flex;
    justify-content: center;
    padding: 6px 12px 10px;
    font-size: 10px;
    letter-spacing: 0.14em;
    color: var(--ink-faint);
    text-transform: uppercase;
    pointer-events: none;
    background: rgba(7, 9, 10, 0.35);
    border-top: 1px solid var(--surface-line);
  }
  .timeline-head { font-size: 11px; gap: 8px; }
  .tl-readout { font-size: 11px; }
  .foot-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
}

@media (max-width: 480px) {
  .hero-name { font-size: clamp(44px, 12vw, 60px); }
  .hero-meta { font-size: 12px; }
  .card { padding: 22px 20px 18px; }
  .card-title { font-size: 18px; }
}

/* ── Reduced motion ────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.001s !important;
  }
}