/* ============================================
   TECHNICAL LUMINANCE — Design System CSS
   Based on DESIGN.md: "The Synthetic Architect"
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
  /* Colors: The Neon Void */
  --bg: #0e0e0e;
  --primary: #cf96ff;
  --primary-dim: #a96de0;
  --secondary: #00f1fe;
  --tertiary: #c4515e;
  --on-surface: #e8e6e6;
  --on-surface-variant: #adaaaa;
  --surface: #0e0e0e;
  --surface-container-lowest: #000000;
  --surface-container-low: #131313;
  --surface-container: #1a1a1a;
  --surface-container-high: #1e1e1e;
  --surface-container-highest: #262626;
  --outline-variant: #484847;

  /* Typography */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --letter-tight: -0.04em;
  --letter-label: 0.1em;
  --line-height-body: 1.6;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Radius — precision, never bubbly */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;

  /* Shadows & Glows */
  --glow-primary: 0px 8px 32px rgba(207, 150, 255, 0.08);
  --glow-secondary: 0px 8px 32px rgba(0, 241, 254, 0.08);
  --glow-primary-strong: 0px 4px 24px rgba(207, 150, 255, 0.15);
  --glow-secondary-strong: 0px 4px 24px rgba(0, 241, 254, 0.15);

  /* Gradients */
  --gradient-silk: linear-gradient(135deg, var(--primary), var(--secondary));

  /* Glass */
  --glass-bg: rgba(38, 38, 38, 0.4);
  --glass-blur: blur(12px);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 4rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: var(--line-height-body);
  color: var(--on-surface-variant);
  background-color: var(--bg);
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--secondary);
}

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--on-surface);
  letter-spacing: var(--letter-tight);
  font-weight: 600;
  line-height: 1.15;
}

h1 { font-size: clamp(2.75rem, 7vw, 5.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.125rem; }

p {
  max-width: 65ch;
}

.label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--letter-label);
  color: var(--primary);
}

.text-gradient {
  background: var(--gradient-silk);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--surface-low {
  background-color: var(--surface-container-low);
}

.section--surface {
  background-color: var(--surface);
}

/* --- Navigation (Glass) --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: background var(--transition-base);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--on-surface);
  letter-spacing: var(--letter-tight);
}

.nav__links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav__link {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  position: relative;
  padding-bottom: 2px;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-base);
}

.nav__link:hover {
  color: var(--on-surface);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__link--active {
  color: var(--on-surface);
}

.nav__link--active::after {
  width: 100%;
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--on-surface);
  margin: 3px 0;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  transform-origin: center;
}

.nav__toggle.active span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--nav-height);
  padding-bottom: var(--space-2xl);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 900px;
}

.hero__label {
  margin-bottom: var(--space-md);
}

.hero__title {
  margin-bottom: var(--space-lg);
  line-height: 1.05;
}

.hero__subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  color: var(--on-surface-variant);
  max-width: 55ch;
  margin-bottom: var(--space-xl);
  line-height: 1.55;
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.hero-socials {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  justify-content: center;
}

.hero-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--surface-container-highest);
  color: var(--on-surface-variant);
  transition: color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.hero-social svg {
  width: 24px;
  height: 24px;
  transition: transform var(--transition-base);
}

.hero-social:hover {
  color: var(--primary);
  background: var(--surface-container-high);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

.hero-social:hover svg {
  transform: scale(1.1);
}

/* Ambient glow behind hero — symmetrical, framing the content */
.hero__glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
}

.hero__glow--primary {
  background: var(--primary);
  top: 5%;
  left: 50%;
  transform: translateX(-65%);
  opacity: 0.14;
}

.hero__glow--secondary {
  background: var(--secondary);
  bottom: 0%;
  left: 50%;
  transform: translateX(-35%);
  opacity: 0.07;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn__icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.btn__icon--arrow {
  margin-left: 0.15rem;
}

.btn:hover .btn__icon--arrow {
  transform: translateX(3px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dim));
  color: var(--surface-container-lowest);
  font-weight: 600;
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.btn--primary:hover::before {
  opacity: 1;
}

.btn--primary:hover {
  box-shadow: var(--glow-primary-strong);
  color: var(--surface-container-lowest);
  transform: translateY(-2px);
}

.btn--secondary {
  background: var(--surface-container-highest);
  color: var(--on-surface);
  border: 1px solid rgba(0, 241, 254, 0.15);
}

.btn--secondary:hover {
  box-shadow: var(--glow-secondary-strong);
  border-color: var(--secondary);
  color: var(--secondary);
  transform: translateY(-2px);
}

.btn--tertiary {
  background: transparent;
  color: var(--primary);
  padding: 0.75rem 0;
  border-bottom: 2px solid var(--primary);
}

.btn--tertiary:hover {
  border-bottom-width: 2px;
  color: var(--primary);
  opacity: 0.8;
}

/* --- Social Icon Buttons --- */
.socials {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--surface-container-highest);
  color: var(--on-surface-variant);
  transition: all var(--transition-base);
  position: relative;
}

.social-btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-base);
}

.social-btn:hover {
  color: var(--primary);
  background: var(--surface-container-high);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

.social-btn:hover svg {
  transform: scale(1.1);
}

.social-btn::after {
  content: attr(data-label);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  font-size: 0.7rem;
  font-family: var(--font-body);
  letter-spacing: var(--letter-label);
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.social-btn:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --- Project Cards: "The Monolith" --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.project-card {
  background: var(--surface-container-high);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow-primary);
}

/* Neon Notch accent */
.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: var(--space-lg);
  width: 24px;
  height: 2px;
  background: var(--secondary);
}

.project-card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--surface-container-lowest);
  overflow: hidden;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image img {
  transform: scale(1.03);
}

.project-card__body {
  padding: var(--space-lg);
}

.project-card__label {
  margin-bottom: var(--space-sm);
}

.project-card__title {
  margin-bottom: var(--space-md);
}

.project-card__desc {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  margin-bottom: var(--space-lg);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* --- Chips --- */
.chip {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--surface-container-highest);
  color: var(--primary);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition-fast);
}

.chip:hover {
  box-shadow: 0 0 8px rgba(207, 150, 255, 0.15);
}

.chip--active {
  box-shadow: 0 0 8px rgba(207, 150, 255, 0.15);
}

/* --- Skills Section --- */
.skills-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: flex-start;
}

/* --- Footer --- */
.footer {
  padding: var(--space-2xl) 0;
  background: var(--surface-container-lowest);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__links {
  display: flex;
  gap: var(--space-sm);
}

.footer__link {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.footer__link:hover {
  color: var(--primary);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  opacity: 0.6;
}

/* ============================================
   CASE STUDY / PROJECT PAGE STYLES
   ============================================ */

.case-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  position: relative;
  overflow: hidden;
}

.case-hero__label {
  margin-bottom: var(--space-md);
}

.case-hero__title {
  margin-bottom: var(--space-lg);
  max-width: 18ch;
}

.case-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.case-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.case-hero__meta-label {
  font-size: 0.7rem;
}

.case-hero__meta-value {
  font-size: 0.95rem;
  color: var(--on-surface);
}

.case-hero__summary {
  font-size: 1.1rem;
  max-width: 60ch;
  color: var(--on-surface-variant);
}

/* Case study wrapper — keeps page breathing room consistent */
.case-study {
  padding-bottom: var(--space-3xl);
}

/* Case study sections — uniform rhythm, editorial hairline separators */
.case-section {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--surface-container-high);
}

.case-image + .case-section {
  border-top: none;
}

.case-section__label {
  display: inline-block;
  margin-bottom: var(--space-md);
}

.case-section__title {
  margin-bottom: var(--space-lg);
}

.case-section__body {
  max-width: 70ch;
}

.case-section__body p {
  margin-bottom: var(--space-md);
}

.case-section__body p:last-child {
  margin-bottom: 0;
}

.case-section__body ul {
  list-style: none;
  padding: 0;
  margin-bottom: 0;
}

.case-section__body li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.case-section__body li:last-child {
  margin-bottom: 0;
}

.case-section__body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 2px;
  background: var(--secondary);
}

/* Image showcase within case study */
.case-image {
  margin: var(--space-xl) 0 var(--space-2xl);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-container-lowest);
}

.case-image img {
  width: 100%;
}

.case-image__caption {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
  color: var(--on-surface-variant);
  opacity: 0.7;
}

/* Code Fragment (from DESIGN.md) */
.code-fragment {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--on-surface-variant);
  position: relative;
  overflow-x: auto;
  margin: var(--space-lg) 0;
  border-left: 2px solid var(--secondary);
  box-shadow: -4px 0 16px rgba(0, 241, 254, 0.06);
}

/* Decision/Tradeoff grid */
.decisions {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

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

.decision-card {
  background: var(--surface-container-low);
  border-left: 2px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-lg);
}

.decision-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--letter-tight);
}

.decision-card__text {
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

/* Status note — subtle callout for in-development etc. */
.case-note {
  margin-top: var(--space-2xl);
  padding: var(--space-xl);
  background: var(--surface-container-low);
  border-left: 2px solid var(--secondary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.case-note__label {
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.case-note__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--letter-tight);
}

.case-note p {
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
  max-width: 60ch;
}

/* CTA row at end of case study */
.case-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl) 0 0;
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--surface-container-high);
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  margin-bottom: var(--space-xl);
  padding-top: calc(var(--nav-height) + var(--space-lg));
}

.back-link:hover {
  color: var(--primary);
}

/* ============================================
   ABOUT PAGE — Editorial, minimal
   ============================================ */

.about-hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.about-hero__label {
  margin-bottom: var(--space-md);
}

.about-hero__title {
  margin-bottom: var(--space-lg);
  max-width: 14ch;
}

.about-hero__intro {
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  max-width: 50ch;
  color: var(--on-surface-variant);
  line-height: 1.55;
}

.about-hero__glow {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(120px);
  background: var(--primary);
  opacity: 0.08;
  top: 20%;
  right: -10%;
  pointer-events: none;
}

/* Meta strip — "At a glance" */
.about-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  margin-top: var(--space-xl);
}

.about-meta__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.about-meta__label {
  font-size: 0.7rem;
  letter-spacing: var(--letter-label);
  text-transform: uppercase;
  color: var(--on-surface-variant);
  opacity: 0.7;
}

.about-meta__value {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--on-surface);
  letter-spacing: var(--letter-tight);
}

.about-meta__value--active {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.about-meta__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 10px var(--secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.9); }
}

/* Experience section wrapper */
.about-experience {
  max-width: 780px;
}

.about-experience__header {
  margin-bottom: var(--space-2xl);
}

.about-experience__label {
  margin-bottom: var(--space-sm);
}

.about-experience__title {
  margin-bottom: 0;
}

/* Timeline — simpler, more editorial */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 0.6em;
  bottom: 1em;
  width: 1px;
  background: linear-gradient(
    to bottom,
    var(--surface-container-highest) 0%,
    var(--surface-container-highest) 95%,
    transparent 100%
  );
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl));
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--surface-container-highest);
  transition: all var(--transition-base);
}

.timeline__item--active::before {
  background: var(--primary);
  box-shadow: 0 0 12px rgba(207, 150, 255, 0.4);
}

.timeline__item:hover::before {
  background: var(--primary);
  box-shadow: 0 0 10px rgba(207, 150, 255, 0.3);
}

.timeline__date {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: var(--letter-label);
  text-transform: uppercase;
  color: var(--on-surface-variant);
  opacity: 0.7;
  margin-bottom: var(--space-sm);
}

.timeline__date-type {
  padding: 0.1rem 0.5rem;
  background: var(--surface-container-highest);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  opacity: 1;
}

.timeline__role {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 0.3rem;
  letter-spacing: var(--letter-tight);
}

.timeline__company {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  margin-bottom: var(--space-sm);
}

.timeline__company-name {
  color: var(--on-surface);
}

.timeline__desc {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  max-width: 60ch;
  line-height: 1.65;
}

/* Contact row */
.about-contact {
  max-width: 780px;
}

.about-contact__title {
  margin-bottom: var(--space-md);
  max-width: 18ch;
}

.about-contact__text {
  margin-bottom: var(--space-xl);
  max-width: 50ch;
  font-size: 1rem;
}

.about-contact__socials {
  margin-top: var(--space-lg);
}

/* ============================================
   ANIMATIONS
   ============================================ */

/* Fade-in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.3s; }
.stagger.visible > *:nth-child(7) { transition-delay: 0.35s; }
.stagger.visible > *:nth-child(8) { transition-delay: 0.4s; }
.stagger.visible > *:nth-child(9) { transition-delay: 0.45s; }
.stagger.visible > *:nth-child(10) { transition-delay: 0.5s; }

.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Neon pulse on primary buttons */
@keyframes neon-pulse {
  0%, 100% { box-shadow: 0 0 8px rgba(207, 150, 255, 0.1); }
  50% { box-shadow: 0 0 20px rgba(207, 150, 255, 0.2); }
}

.btn--primary {
  animation: neon-pulse 4s ease-in-out infinite;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  :root {
    --space-3xl: 4.5rem;
    --space-4xl: 6rem;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    flex-direction: column;
    padding: var(--space-xl) var(--space-lg);
    gap: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__toggle {
    display: flex;
  }

  .hero {
    min-height: 85vh;
  }

  .hero__glow {
    width: 420px;
    height: 420px;
    filter: blur(100px);
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

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

  .about-hero__glow {
    width: 280px;
    height: 280px;
    filter: blur(90px);
    right: -20%;
  }

  .case-hero {
    padding-top: calc(var(--nav-height) + var(--space-2xl));
  }

  .case-hero__meta {
    gap: var(--space-lg);
  }

  .timeline {
    padding-left: var(--space-lg);
  }

  .timeline__item::before {
    left: calc(-1 * var(--space-lg));
  }

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

@media (max-width: 480px) {
  :root {
    --space-3xl: 3.5rem;
  }

  h1 { font-size: clamp(2rem, 10vw, 2.75rem); }

  .container {
    padding: 0 var(--space-md);
  }

  .hero {
    padding-bottom: var(--space-xl);
  }

  .hero__glow {
    width: 320px;
    height: 320px;
    filter: blur(80px);
  }

  .hero__cta {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
  }

  .hero__cta .btn {
    width: 100%;
    justify-content: center;
  }

  .nav__logo {
    font-size: 1rem;
  }

  .case-hero__meta {
    gap: var(--space-md);
  }

  .case-hero__meta-item {
    flex: 1 1 45%;
  }

  .case-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .case-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .case-note {
    padding: var(--space-lg);
  }

  .decision-card {
    padding: var(--space-md);
  }

  .code-fragment {
    padding: var(--space-md);
    font-size: 0.78rem;
  }
}

/* ============================================
   PLACEHOLDER IMAGE STATES
   ============================================ */

.placeholder-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--surface-container-low);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-variant);
  font-size: 0.85rem;
  opacity: 0.5;
}