/* David Bonilla — Premium engineering portfolio
   Institutional digital-asset / protocol aesthetic */

:root {
  --bg: #070809;
  --bg-elevated: #0c0d10;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f2f4f7;
  --muted: #8b93a7;
  --accent: #6b8cff;
  --accent-soft: rgba(107, 140, 255, 0.12);
  --accent-glow: rgba(107, 140, 255, 0.18);
  --line: rgba(255, 255, 255, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1400px;
  --header-h: 68px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 200ms;
  --dur-fast: 150ms;
  --dur-hover: 220ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 18px);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 1000;
  background: var(--accent);
  color: #071018;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-weight: 600;
}

.skip-link:focus {
  left: 12px;
}

.container {
  width: min(calc(100% - clamp(2.5rem, 6vw, 4.5rem)), var(--max));
  margin-inline: auto;
}

/* Ambient background — restrained */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(140, 155, 180, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 155, 180, 0.028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 65% 50% at 50% 0%, black 15%, transparent 72%);
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 45% 35% at 12% 8%, rgba(107, 140, 255, 0.1), transparent 55%),
    radial-gradient(ellipse 35% 30% at 88% 4%, rgba(90, 110, 170, 0.08), transparent 50%),
    radial-gradient(ellipse 55% 35% at 50% 100%, rgba(35, 45, 70, 0.2), transparent 60%);
  pointer-events: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  backdrop-filter: blur(18px) saturate(1.1);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
  background: rgba(7, 8, 12, 0.78);
  border-bottom: 1px solid var(--line);
  transition: height var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-header.is-compact {
  --header-h: 58px;
  background: rgba(7, 8, 12, 0.9);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: rgba(107, 140, 255, 0.1);
  border: 1px solid var(--border-strong);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.logo-text {
  font-size: 0.98rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.15rem;
}

.nav a {
  position: relative;
  font-size: 0.88rem;
  color: var(--muted);
  padding: 0.35rem 0;
  transition: color var(--dur) var(--ease);
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.nav a[data-nav].is-active:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  opacity: 0.85;
}

.nav a[data-nav].is-active:not(.nav-cta) {
  color: var(--text);
}

.nav-cta {
  padding: 0.4rem 0.85rem !important;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text) !important;
  background: var(--surface);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.nav-cta:hover,
.nav-cta.is-active {
  background: var(--surface-hover);
  border-color: rgba(107, 140, 255, 0.35);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  place-items: center;
  gap: 6px;
  flex-direction: column;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  transition: transform var(--dur) var(--ease), opacity var(--dur);
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* Sections */
.section {
  padding: 5.75rem 0;
}

.section--compact {
  padding: 3.5rem 0;
}

.section-head {
  margin-bottom: 2.35rem;
  max-width: 40rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-head h2,
.contact-panel h2,
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.section-head h2,
.contact-panel h2 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  margin-bottom: 0.7rem;
}

.section-lede {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.65;
}

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition:
    border-color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease),
    transform var(--dur-hover) var(--ease);
}

/* Shared card hover micro-interaction */
.glass.capability-card:hover,
.glass.project-card:hover,
.glass.edu-card:hover,
.glass.timeline-body:hover,
.glass.stack-group:hover,
.glass.stack-cat:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  transform: translateY(-2px);
}

/* Hero — centered architectural composition */
.hero {
  padding-top: clamp(1.5rem, 3.5vh, 2.5rem);
  padding-bottom: clamp(1rem, 2.5vh, 1.75rem);
  min-height: calc(100svh - var(--header-h) - 6.5rem);
  display: flex;
  align-items: center;
}

.hero-frame {
  width: min(calc(100% - clamp(2.5rem, 6vw, 4.5rem)), var(--max));
  margin-inline: auto;
  padding: clamp(1.25rem, 2.5vw, 1.75rem) clamp(1.25rem, 2.5vw, 2rem);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 40%),
    rgba(255, 255, 255, 0.01);
}

.hero-grid {
  display: grid;
  /* Editorial asymmetry: ~50% / ~27–28% / ~18–20% */
  grid-template-columns:
    minmax(0, 1.2fr)
    minmax(300px, 0.66fr)
    minmax(195px, 0.45fr);
  grid-template-areas:
    "copy portrait spec"
    "meta portrait spec";
  align-items: end;
  column-gap: clamp(1.1rem, 2.4vw, 2.15rem);
  row-gap: 0.85rem;
}

.hero-copy {
  grid-area: copy;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding-bottom: 0.15rem;
}

.hero-portrait {
  grid-area: portrait;
}

.hero-spec {
  grid-area: spec;
}

.hero-meta {
  grid-area: meta;
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(107, 140, 255, 0.88);
  margin-bottom: 0.85rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(4rem, 6vw, 6.5rem);
  font-weight: 800;
  margin-bottom: 0.55rem;
  line-height: 0.96;
  letter-spacing: -0.045em;
  color: #f5f7fb;
  background: linear-gradient(120deg, #ffffff 0%, #dce5ff 45%, #9eb4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-role {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 650;
  color: var(--text);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.hero-tagline {
  color: #b8c0ce;
  font-size: clamp(1.08rem, 1.55vw, 1.28rem);
  line-height: 1.55;
  max-width: 34rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.hero-tech {
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 1vw, 0.76rem);
  letter-spacing: 0.035em;
  color: rgba(139, 147, 167, 0.95);
  line-height: 1.55;
  margin-bottom: 1.35rem;
  max-width: 34rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
}

.hero-actions .btn-primary {
  min-height: 48px;
  padding-inline: 1.35rem;
  font-size: 0.9rem;
  box-shadow: 0 10px 28px var(--accent-glow);
}

.hero-actions .btn-primary .btn-arrow,
.hero-actions .btn-secondary .btn-arrow {
  display: inline-block;
  margin-left: 0.4rem;
  transition: transform var(--dur-hover) var(--ease);
}

.hero-actions .btn-primary:hover .btn-arrow {
  transform: translateX(3px);
}

.hero-actions .btn-secondary:hover .btn-arrow {
  transform: translateY(2px);
}

.hero-actions .btn-secondary {
  min-height: 48px;
  color: var(--text);
  border-color: var(--border-strong);
  background: transparent;
}

.hero-actions .btn-secondary:hover {
  border-color: rgba(107, 140, 255, 0.4);
  background: rgba(255, 255, 255, 0.025);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
  margin-bottom: 1.15rem;
}

.hero-links a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.hero-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.hero-links .ext-link::after {
  margin-left: 0.25rem;
  opacity: 0.65;
}

.hero-meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.65rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(139, 147, 167, 0.82);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.02);
}

/* Portrait — integrated grayscale bridge */
.hero-portrait {
  grid-area: portrait;
  position: relative;
  align-self: end;
  min-width: 0;
  width: 100%;
  max-width: 430px;
  justify-self: center;
}

.portrait-stage {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: transparent;
  aspect-ratio: 739 / 980;
  max-height: min(64vh, 580px);
}

.portrait {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
  filter: grayscale(1) contrast(1.04) brightness(0.96);
}

.portrait-stage::before,
.portrait-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.portrait-stage::before {
  background:
    linear-gradient(90deg, rgba(7, 8, 9, 0.72) 0%, transparent 18%, transparent 82%, rgba(7, 8, 9, 0.65) 100%),
    linear-gradient(180deg, rgba(7, 8, 9, 0.28) 0%, transparent 16%, transparent 68%, rgba(7, 8, 9, 0.95) 100%);
}

.portrait-stage::after {
  background: radial-gradient(ellipse 72% 68% at 50% 32%, transparent 38%, rgba(7, 8, 9, 0.62) 100%);
  opacity: 0.9;
}

/* Specialization — editorial index */
.hero-spec {
  grid-area: spec;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-width: 0;
  padding: 1.15rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.panel-kicker {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.panel-list {
  display: grid;
  gap: 0;
}

.panel-list--indexed {
  list-style: none;
}

.panel-list--indexed li {
  display: grid;
  grid-template-columns: 1.75rem 1fr;
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.35;
}

.panel-list--indexed li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.panel-list--indexed li::before {
  display: none;
}

.panel-index {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.panel-item-text {
  color: #c2c8d4;
}

/* Currently Building — engineering status strip */
.status-section {
  padding: 1.15rem 0 0.35rem;
  margin-top: 0;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0;
  padding: 0;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.status-strip .status-label {
  margin: 0;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.95rem 1.15rem;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.status-strip .status-label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(107, 140, 255, 0.45);
  animation: status-pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}

.status-strip__items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  flex: 1;
  min-width: 0;
}

.status-strip__item {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.95rem 1.15rem;
  font-family: var(--font-mono);
  min-width: 0;
}

.status-strip__item + .status-strip__item {
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.status-strip__item .status-id {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: rgba(107, 140, 255, 0.75);
  padding-top: 0.15rem;
}

.status-strip__copy {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.status-strip__item .status-name {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  margin: 0;
}

.status-strip__item .status-desc {
  font-size: 0.72rem;
  color: var(--muted);
  margin: 0;
}

.status-strip__item .status-desc::before {
  content: none;
}

/* Capabilities modules */
.capability-modules {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.capability-module {
  padding: 1.1rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  transition:
    border-color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease),
    transform var(--dur-hover) var(--ease);
}

.capability-module:hover {
  border-color: rgba(107, 140, 255, 0.28);
  background: rgba(107, 140, 255, 0.04);
  transform: translateY(-2px);
}

.capability-module .cap-icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
  margin-bottom: 0.85rem;
  opacity: 0.9;
}

.capability-module .cap-icon svg {
  width: 100%;
  height: 100%;
}

.capability-module h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.68rem 1.25rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  transition:
    transform var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease),
    border-color var(--dur-hover) var(--ease),
    box-shadow var(--dur-hover) var(--ease),
    color var(--dur-hover) var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, #7e98ff, #5574ef);
  color: #071018;
  box-shadow: 0 10px 28px var(--accent-glow);
  border: 1px solid transparent;
}

.btn-primary:hover {
  box-shadow: 0 14px 32px rgba(107, 140, 255, 0.28);
}

.btn-secondary {
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: rgba(107, 140, 255, 0.35);
}

.btn-ghost {
  color: var(--muted);
  min-height: auto;
  padding: 0.45rem 0.35rem;
  border-radius: 4px;
}

.btn-ghost:hover {
  color: var(--text);
  transform: none;
}

/* Project actions */
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
  margin: 1rem 0 0.35rem;
}

.text-action {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--accent);
  transition: color var(--dur) var(--ease);
}

.text-action:hover {
  color: #a8bbff;
}

/* Contact actions */
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin-bottom: 1.15rem;
}

.contact-email-note {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  cursor: pointer;
  pointer-events: auto;
  transition: color var(--dur) var(--ease);
}

.contact-email-note:hover,
.contact-email-note:focus-visible {
  color: var(--accent);
}

.status-board {
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background:
    linear-gradient(160deg, rgba(107, 140, 255, 0.05), rgba(255, 255, 255, 0.015));
}

.status-label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.status-label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(107, 140, 255, 0.45);
  animation: status-pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.status-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.15rem 0.65rem;
  align-items: start;
  padding: 0.85rem 0.95rem;
  border-radius: 10px;
  border: 1px solid rgba(140, 155, 180, 0.1);
  background: rgba(0, 0, 0, 0.18);
  font-family: var(--font-mono);
  transition:
    border-color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease),
    transform var(--dur-hover) var(--ease);
}

.status-item:hover {
  border-color: var(--border-strong);
  background: rgba(107, 140, 255, 0.04);
  transform: translateY(-2px);
}

.status-id {
  grid-row: 1 / 3;
  align-self: center;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: rgba(107, 140, 255, 0.65);
  font-weight: 500;
}

.status-name {
  grid-column: 2;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.3;
}

.status-desc {
  grid-column: 2;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.status-dot {
  grid-row: 1 / 3;
  align-self: center;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(107, 140, 255, 0.4);
  animation: status-pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}

@keyframes status-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(107, 140, 255, 0.4);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(107, 140, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(107, 140, 255, 0);
  }
}

/* Legacy building strip — kept for backward compatibility */
.building-strip {
  padding: 0 0 1.5rem;
  margin-top: -1.5rem;
}

.building-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(107, 140, 255, 0.04);
}

.building-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(107, 140, 255, 0.45);
  animation: status-pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}

.building-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
}

.building-items {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.55rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.building-sep {
  color: var(--accent);
  opacity: 0.7;
}

/* Capabilities */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.95rem;
}

.capability-card {
  padding: 1.3rem 1.2rem;
}

.cap-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  margin-bottom: 0.9rem;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: rgba(107, 140, 255, 0.06);
  color: var(--accent);
}

.cap-icon svg {
  width: 18px;
  height: 18px;
}

.capability-card h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.capability-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* Architecture flow */
.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1.35rem;
  margin: 0.85rem 0 1.1rem;
}

.arch-step {
  position: relative;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.22);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--text);
  white-space: nowrap;
  transition:
    border-color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease);
}

.arch-step:hover {
  border-color: rgba(107, 140, 255, 0.35);
  background: rgba(107, 140, 255, 0.06);
}

.arch-step::after,
.arch-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(107, 140, 255, 0.55);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-inline: 0.15rem;
}

.arch-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -0.95rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 1;
}

.arch-arrow {
  padding: 0 0.1rem;
  opacity: 0.55;
}

/* Architecture visual placeholder */
.arch-visual {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  aspect-ratio: 16 / 9;
  background-color: var(--bg-elevated);
  background-image:
    linear-gradient(135deg, rgba(107, 140, 255, 0.04) 25%, transparent 25%, transparent 50%, rgba(107, 140, 255, 0.04) 50%, rgba(107, 140, 255, 0.04) 75%, transparent 75%, transparent),
    linear-gradient(rgba(140, 155, 180, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 155, 180, 0.045) 1px, transparent 1px);
  background-size: 24px 24px, 32px 32px, 32px 32px;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    inset 0 1px 0 rgba(107, 140, 255, 0.06);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.15rem 1.25rem;
}

.arch-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 20%, rgba(107, 140, 255, 0.08), transparent 65%);
  pointer-events: none;
}

.arch-visual__label {
  position: absolute;
  top: 0.85rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(107, 140, 255, 0.75);
  z-index: 1;
}

.arch-visual__title {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.arch-visual__hint {
  position: relative;
  z-index: 1;
  font-size: 0.82rem;
  color: var(--muted);
  max-width: 28rem;
  line-height: 1.45;
}

/* Projects / Showcase */
.showcase {
  display: grid;
  gap: 1.5rem;
}

.project-tier {
  margin: 0.35rem 0 1rem;
}

.tier-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.project-list {
  display: grid;
  gap: 1.15rem;
}

.project-list--featured {
  margin-bottom: 2.5rem;
}

.project-list--secondary {
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.project-card {
  padding: 1.55rem 1.45rem;
}

.project-card--featured {
  padding: clamp(1.75rem, 3vw, 2.25rem) clamp(1.6rem, 2.8vw, 2rem);
  background:
    linear-gradient(165deg, rgba(107, 140, 255, 0.055), transparent 42%),
    var(--surface);
}

.project-card--case {
  display: grid;
  gap: 0;
}

.project-card--case .project-meta h3 {
  font-size: clamp(1.35rem, 2.4vw, 1.65rem);
}

.project-card--case .project-desc {
  font-size: 1.02rem;
  line-height: 1.6;
  max-width: 42rem;
  margin-bottom: 1.1rem;
}

.project-card--compact {
  padding: 1.2rem 1.15rem;
}

.project-card--compact .project-desc {
  font-size: 0.92rem;
  margin-bottom: 0.85rem;
}

.project-card--evidence {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(220px, 0.9fr);
  gap: 1.15rem 1.5rem;
  align-items: start;
  padding: 1.45rem 1.35rem;
}

.project-card--evidence .project-meta,
.project-card--evidence .project-desc,
.project-card--evidence .signal-list,
.project-card--evidence .project-links {
  grid-column: 1;
}

.project-card--evidence .project-visual {
  grid-column: 2;
  grid-row: 1 / span 4;
  margin: 0;
}

.signal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 1.15rem;
}

.signal-list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--text);
  padding: 0.42rem 0.7rem;
  border-radius: 8px;
  border: 1px solid rgba(107, 140, 255, 0.2);
  background: rgba(107, 140, 255, 0.05);
}

.signal-list--compact li {
  font-size: 0.68rem;
  padding: 0.35rem 0.55rem;
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
}

.project-note--subtle {
  margin: -0.35rem 0 0.95rem;
  font-size: 0.82rem;
}

.btn-sm {
  min-height: 40px;
  padding: 0.5rem 1.05rem;
  font-size: 0.84rem;
}

.project-card--featured:has(.project-visual, .arch-visual, .arch-flow, .project-card__aside) {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.95fr);
  gap: clamp(1.25rem, 2.5vw, 2rem);
  align-items: start;
}

.project-card__content {
  min-width: 0;
}

.project-card__aside {
  min-width: 0;
  display: grid;
  gap: 0.85rem;
}

.showcase .project-card--featured {
  padding: clamp(2rem, 3.5vw, 2.5rem);
}

.showcase .project-card--featured .project-meta h3 {
  font-size: clamp(1.45rem, 2.5vw, 1.75rem);
}

.project-card--secondary {
  padding: 1.35rem 1.25rem;
}

.project-card--secondary .project-meta h3 {
  font-size: 1.15rem;
}

.project-card--secondary .highlight-list li {
  font-size: 0.78rem;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.45rem 1.15rem;
  margin-bottom: 0.7rem;
}

.project-meta h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.role {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
}

.project-focus {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  opacity: 0.92;
}

.project-desc {
  color: var(--muted);
  max-width: 58rem;
  margin-bottom: 1rem;
}

.project-visual {
  margin: 0 0 1.15rem;
}

.project-card__aside .project-visual,
.project-card__aside .arch-visual {
  margin: 0;
}

.project-visual .visual-frame {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  aspect-ratio: 16 / 9;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.project-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.project-visual figcaption {
  margin-top: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.project-card--secondary .project-visual .visual-frame {
  aspect-ratio: 16 / 10;
}

.project-note {
  margin: -0.25rem 0 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 500;
}

.project-note .detail-badge {
  flex-shrink: 0;
}

.highlight-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.highlight-list li {
  padding: 0.32rem 0.65rem;
  border-radius: 7px;
  background: var(--accent-soft);
  border: 1px solid rgba(107, 140, 255, 0.16);
  font-size: 0.8rem;
  color: #c9d4f8;
}

.tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tech-chips li,
.stack-group li,
.core-list li {
  padding: 0.26rem 0.58rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.76rem;
  color: var(--muted);
  transition: border-color var(--dur), color var(--dur), background var(--dur);
}

.tech-chips li:hover,
.stack-group li:hover,
.core-list li:hover {
  border-color: rgba(107, 140, 255, 0.35);
  color: var(--text);
  background: rgba(107, 140, 255, 0.06);
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.ext-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.ext-link::after {
  content: "↗";
  font-size: 0.78rem;
  opacity: 0.8;
}

.ext-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Engineering details */
.eng-details {
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
  margin-top: 1.1rem;
}

.eng-details summary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  list-style: none;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.88rem;
  user-select: none;
  transition: color var(--dur) var(--ease);
}

.eng-details summary::-webkit-details-marker {
  display: none;
}

.eng-details summary::after {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
  margin-top: -0.12rem;
}

.eng-details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 0.12rem;
}

.eng-details summary:hover {
  color: #a8bbff;
}

.eng-body {
  margin-top: 0.95rem;
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.22);
  display: grid;
  gap: 1.15rem;
}

.eng-block h4 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  letter-spacing: -0.01em;
  margin-bottom: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.detail-badge {
  display: inline-flex;
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(107, 140, 255, 0.28);
  background: var(--accent-soft);
  color: #c9d4f8;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
}

.eng-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.45rem;
}

.eng-list {
  display: grid;
  gap: 0.42rem;
}

.eng-list li {
  position: relative;
  padding-left: 0.95rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.eng-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.85;
}

/* Timeline */
.timeline {
  position: relative;
  display: grid;
  gap: 1rem;
  padding-left: 1.45rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.45rem;
  bottom: 0.45rem;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), transparent 90%);
  opacity: 0.55;
}

.timeline-item {
  position: relative;
}

.timeline-marker {
  position: absolute;
  left: -1.45rem;
  top: 1.3rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(107, 140, 255, 0.1);
}

.timeline-body {
  padding: 1.2rem 1.25rem;
}

.timeline-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  margin-bottom: 0.3rem;
}

.timeline-top h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.timeline-top time {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.current-badge {
  display: inline-flex;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  border: 1px solid rgba(107, 140, 255, 0.3);
  background: var(--accent-soft);
  color: #c9d4f8;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.timeline-body .role {
  margin-bottom: 0.5rem;
}

.timeline-body > p:last-child {
  color: var(--muted);
  font-size: 0.94rem;
}

/* Stack — core dominant + expandable categories */
.stack-core,
.core-stack {
  padding: clamp(1.5rem, 3vw, 1.85rem) clamp(1.45rem, 3vw, 1.75rem);
  margin-bottom: 1.35rem;
  border-radius: var(--radius);
  border: 1px solid rgba(107, 140, 255, 0.22);
  background:
    linear-gradient(160deg, rgba(107, 140, 255, 0.1), rgba(107, 140, 255, 0.02) 55%, transparent),
    var(--surface);
  box-shadow: inset 0 1px 0 rgba(107, 140, 255, 0.08);
}

.stack-core h3,
.core-stack h3 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1.05rem;
  color: var(--accent);
}

.core-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.core-list li {
  padding: 0.48rem 0.95rem;
  border-radius: 999px;
  border: 1px solid rgba(107, 140, 255, 0.32);
  background: rgba(107, 140, 255, 0.1);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
}

.stack-categories {
  display: grid;
  gap: 0.65rem;
}

.stack-cat {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  transition:
    border-color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease),
    transform var(--dur-hover) var(--ease);
}

.stack-cat:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
}

.stack-cat summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  transition: color var(--dur) var(--ease);
}

.stack-cat summary::-webkit-details-marker {
  display: none;
}

.stack-cat summary::after {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
  flex-shrink: 0;
  margin-top: -0.1rem;
}

.stack-cat[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 0.1rem;
}

.stack-cat summary:hover {
  color: #c9d4f8;
}

.stack-cat ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0 1.1rem 1.05rem;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
}

.stack-group {
  padding: 1.15rem;
}

.stack-group h3 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  margin-bottom: 0.8rem;
  color: var(--accent);
}

.stack-group ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

/* Education */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
}

.edu-card {
  padding: 1.2rem 1.3rem;
}

.edu-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.edu-card p {
  color: var(--muted);
  margin-bottom: 0.65rem;
  font-size: 0.92rem;
}

.edu-card time {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
}

/* About */
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(240px, 0.7fr);
  gap: 1.35rem;
  align-items: start;
}

.about-copy {
  display: grid;
  gap: 0.95rem;
}

.about-copy p {
  color: var(--muted);
  font-size: 1.02rem;
}

.about-aside {
  padding: 1.3rem 1.25rem;
  position: sticky;
  top: calc(var(--header-h) + 18px);
}

.about-aside h3 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  margin-bottom: 0.75rem;
}

.about-aside h3:not(:first-child) {
  margin-top: 1.25rem;
}

.about-meta {
  display: grid;
  gap: 0.55rem;
}

.about-meta li {
  display: grid;
  gap: 0.12rem;
  font-size: 0.9rem;
  color: var(--text);
}

.about-meta span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.about-focus {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.about-focus li {
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--muted);
}

/* Contact — stronger CTA */
.contact-section {
  padding-bottom: 5.5rem;
}

.contact-panel {
  padding: clamp(2.25rem, 5vw, 3.5rem) clamp(1.75rem, 4vw, 3rem);
  text-align: center;
  background:
    radial-gradient(ellipse 70% 80% at 50% 0%, rgba(107, 140, 255, 0.12), transparent 58%),
    linear-gradient(180deg, rgba(107, 140, 255, 0.03), transparent 35%),
    var(--surface);
  border-color: rgba(107, 140, 255, 0.18);
}

.contact-panel .eyebrow {
  margin-bottom: 0.85rem;
}

.contact-panel h2 {
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  max-width: 18ch;
  margin-inline: auto;
  margin-bottom: 0.85rem;
  background: linear-gradient(135deg, #eef1f6 0%, #c5d2ff 45%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.contact-copy {
  max-width: 36rem;
  margin: 0 auto 1.75rem;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.65;
}

.contact-links {
  display: grid;
  gap: 0.7rem;
  max-width: 28rem;
  margin: 0 auto 1.75rem;
  text-align: left;
}

.contact-links a {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.18);
  transition:
    border-color var(--dur-hover) var(--ease),
    background var(--dur-hover) var(--ease),
    transform var(--dur-hover) var(--ease);
}

.contact-links a:hover {
  border-color: var(--border-strong);
  background: rgba(107, 140, 255, 0.06);
  transform: translateY(-2px);
}

.contact-links span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-panel .btn-primary {
  min-height: 50px;
  padding-inline: 1.65rem;
  font-size: 0.94rem;
  box-shadow: 0 14px 36px rgba(107, 140, 255, 0.22);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 1.9rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-inner a:hover {
  color: var(--text);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .status-label::before,
  .status-dot,
  .building-dot {
    animation: none;
  }

  .btn:hover,
  .glass.capability-card:hover,
  .glass.project-card:hover,
  .glass.edu-card:hover,
  .glass.timeline-body:hover,
  .glass.stack-group:hover,
  .glass.stack-cat:hover,
  .status-item:hover,
  .contact-links a:hover {
    transform: none;
  }

  .glass,
  .btn,
  .site-header,
  .status-item,
  .contact-links a {
    transition: none;
  }
}

/* Responsive */
@media (max-width: 1280px) {
  .hero-grid {
    grid-template-columns:
      minmax(0, 1.18fr)
      minmax(270px, 0.64fr)
      minmax(185px, 0.42fr);
    column-gap: 1.15rem;
  }

  .hero h1 {
    font-size: clamp(3.4rem, 5.2vw, 5.2rem);
  }

  .portrait-stage {
    max-height: min(56vh, 500px);
  }
}

@media (max-height: 860px) and (min-width: 981px) {
  .hero {
    min-height: auto;
    padding-top: 1.25rem;
    padding-bottom: 0.85rem;
  }

  .hero-frame {
    padding: 1.1rem 1.25rem;
  }

  .hero h1 {
    font-size: clamp(3rem, 4.8vw, 4.6rem);
  }

  .hero-role {
    font-size: clamp(1.25rem, 2vw, 1.55rem);
    margin-bottom: 0.7rem;
  }

  .hero-tagline {
    font-size: 1.05rem;
    margin-bottom: 0.75rem;
  }

  .hero-tech {
    margin-bottom: 1rem;
    padding-top: 0.65rem;
  }

  .portrait-stage {
    max-height: min(48vh, 420px);
  }
}

@media (max-width: 1100px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.75fr);
    grid-template-areas:
      "copy portrait"
      "meta portrait"
      "spec spec";
    align-items: end;
  }

  .hero-portrait {
    justify-self: end;
    max-width: 360px;
  }

  .hero-spec {
    max-width: none;
  }

  .hero h1 {
    font-size: clamp(2.9rem, 5vw, 4.4rem);
  }

  .capability-modules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stack-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 980px) {
  .hero {
    min-height: auto;
    padding-top: 1.75rem;
    padding-bottom: 1.25rem;
  }

  .hero-frame {
    padding: 1.15rem 1.1rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "copy"
      "portrait"
      "meta"
      "spec";
    gap: 1.25rem;
    align-items: start;
  }

  .hero-portrait {
    justify-self: start;
    width: min(100%, 260px);
    max-width: 260px;
  }

  .hero-spec {
    align-self: stretch;
  }

  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-aside {
    position: static;
  }

  .project-list--secondary {
    grid-template-columns: 1fr 1fr;
  }

  .stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .project-card--featured:has(.project-visual, .arch-visual, .arch-flow, .project-card__aside),
  .project-card--evidence {
    grid-template-columns: 1fr;
  }

  .project-card--evidence .project-visual {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: grid;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.7rem 1.25rem 1.15rem;
    background: rgba(7, 8, 9, 0.97);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 0.85rem 0.2rem;
    border-bottom: 1px solid var(--line);
  }

  .nav a[data-nav].is-active:not(.nav-cta)::after {
    display: none;
  }

  .nav-cta {
    margin-top: 0.5rem;
    text-align: center;
  }

  .hero {
    min-height: auto;
    padding-top: 1.35rem;
    padding-bottom: 1rem;
  }

  .hero-frame {
    border-radius: 12px;
    padding: 1rem 0.95rem;
  }

  .hero h1 {
    font-size: clamp(2.7rem, 12vw, 3.5rem);
  }

  .hero-role {
    font-size: clamp(1.2rem, 5vw, 1.4rem);
  }

  .hero-tagline {
    font-size: 1.05rem;
  }

  .hero-tech {
    font-size: 0.7rem;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
    min-width: min(100%, 10rem);
  }

  .hero-portrait {
    width: min(100%, 240px);
  }

  .portrait-stage {
    max-height: 320px;
  }

  .status-strip {
    flex-direction: column;
  }

  .status-strip .status-label {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .status-strip__items {
    grid-template-columns: 1fr;
  }

  .status-strip__item + .status-strip__item {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .capability-modules {
    grid-template-columns: 1fr;
  }

  .arch-flow {
    gap: 0.55rem 0.35rem;
  }

  .arch-step {
    white-space: normal;
  }

  .arch-step:not(:last-child)::after {
    display: none;
  }

  .showcase,
  .project-list--featured {
    gap: 1.15rem;
  }

  .section {
    padding: 3.75rem 0;
  }

  .project-list--secondary,
  .stack-grid,
  .edu-grid {
    grid-template-columns: 1fr;
  }

  .project-card--featured,
  .project-card--secondary,
  .contact-panel {
    padding: 1.25rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}


@media (max-width: 430px) {
  .container {
    width: min(calc(100% - 1.35rem), var(--max));
  }

  .logo-text {
    display: none;
  }

  .hero h1 {
    font-size: clamp(2.45rem, 11vw, 2.85rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .btn-ghost {
    text-align: center;
  }
}