/* ==========================================================================
   Design Tokens — customize colors and spacing here
   ========================================================================== */
  :root {
  --color-bg: #0F1115;
  --color-bg-secondary: #171A21;
  --color-bg-elevated: #1E2229;
  --color-accent: #7C5CFF;
  --color-accent-hover: #947BFF;
  --color-accent-glow: rgba(124, 92, 255, 0.25);
  --color-accent-border: rgba(124, 92, 255, 0.3);
  --color-text: #FFFFFF;
  --color-text-secondary: #A9B1BC;
  --color-text-muted: #6B7280;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-glass: rgba(23, 26, 33, 0.75);
  --color-glass-border: rgba(255, 255, 255, 0.1);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
  --duration-slow: 0.6s;
  --transition: var(--duration-normal) var(--ease-out);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px var(--color-accent-glow);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

address {
  font-style: normal;
}

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

ul[role="list"],
ol[role="list"] {
  list-style: none;
}

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

/* ==========================================================================
   Utilities
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

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

.section__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal.visible .timeline__item,
.reveal.visible .skill-card,
.reveal.visible .software-list__item,
.reveal.visible .gallery__item {
  animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Card Component
   ========================================================================== */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.card:hover {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Button Component
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.875rem 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition:
    background-color var(--duration-normal) var(--ease-out),
    color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent), #6B4FE0);
  color: var(--color-text);
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent));
  box-shadow: 0 0 50px var(--color-accent-glow);
  transform: translateY(-2px);
}

.btn--primary:active { transform: translateY(0); }

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition:
    background-color var(--duration-normal) var(--ease-out),
    backdrop-filter var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.header.scrolled {
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-glass-border);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__logo:hover {
  color: var(--color-accent);
}

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

.nav__link {
  position: relative;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding-block: var(--space-xs);
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
  transition: width var(--duration-normal) var(--ease-out);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-text);
}

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

/* Hamburger toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  z-index: 1001;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition:
    transform var(--duration-normal) var(--ease-out),
    opacity var(--duration-fast) var(--ease-out);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-block: calc(var(--header-height) + var(--space-xl)) var(--space-xl);
  overflow: hidden;
}

.about__bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/images/ivan-konoplin_sperasoft-bootcamp/ivan-konoplin_sperasoft-bootcamp.jpg');
  background-size: cover;
  background-position: center 30%;
  background-repeat: no-repeat;
  transform: scale(1.05);
  transition: transform 8s var(--ease-out);
}

.about:hover .about__bg {
  transform: scale(1);
}

.about__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(15, 17, 21, 0.92) 0%, rgba(15, 17, 21, 0.7) 50%, rgba(15, 17, 21, 0.85) 100%),
    linear-gradient(to top, var(--color-bg) 0%, transparent 30%);
}

.about__content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.about__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.about__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about__role {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
}

.about__intro {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 540px;
}

/* ==========================================================================
   Resume Section
   ========================================================================== */
.resume,
.contact {
  background: var(--color-bg-secondary);
  position: relative;
}

.resume::before,
.contact::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.resume__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.resume__block-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.resume__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(124, 92, 255, 0.12);
  color: var(--color-accent);
}

.resume__icon svg,
.contact__icon svg {
  width: 18px;
  height: 18px;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-md);
}

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

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

.timeline__marker {
  position: absolute;
  left: calc(-1 * var(--space-md) - 5px);
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent-glow);
  z-index: 1;
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-md) - 1px);
  top: 18px;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item:last-child::before {
  display: none;
}

.timeline__card {
  margin-left: var(--space-sm);
}

.timeline__date {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.timeline__role {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.timeline__company {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.timeline__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Skills grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.skill-card__title {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.skill-card__desc,
.gallery__desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Software list */
.software-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.software-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
}

.software-list__name {
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 140px;
  flex-shrink: 0;
}

.software-list__bar {
  flex: 1;
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  overflow: hidden;
}

.software-list__fill {
  height: 100%;
  width: var(--level);
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s var(--ease-out);
}

.reveal.visible .software-list__fill {
  transform: scaleX(1);
}

/* ==========================================================================
   Portfolio Gallery
   ========================================================================== */
.portfolio {
  position: relative;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.gallery__card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  transition:
    transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out);
}

.gallery__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(124, 92, 255, 0.25);
}

.gallery__image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  cursor: pointer;
}

.gallery__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.gallery__card:hover .gallery__image {
  transform: scale(1.06);
}

.gallery__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 17, 21, 0.6);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.gallery__card:hover .gallery__overlay {
  opacity: 1;
}

.gallery__view {
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 0.625rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  background: rgba(15, 17, 21, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform: translateY(8px);
  transition:
    transform var(--duration-normal) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out);
  cursor: pointer;
}

.gallery__view:hover {
  border-color: var(--color-accent);
  background: rgba(124, 92, 255, 0.2);
}

.gallery__card:hover .gallery__view {
  transform: translateY(0);
}

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

.gallery__title {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  transition: color var(--duration-fast) var(--ease-out);
}

.gallery__card:hover .gallery__title { color: var(--color-accent-hover); }

/* Featured first item spans 2 columns */
.gallery__item:first-child {
  grid-column: span 2;
}

.gallery__item:first-child .gallery__image-wrap {
  aspect-ratio: 21 / 9;
}

/* ==========================================================================
   Project Viewer (Full-Screen Gallery)
   ========================================================================== */
body.viewer-open {
  overflow: hidden;
}

.project-viewer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: stretch;
  justify-content: center;
  pointer-events: none;
  visibility: hidden;
}

.project-viewer.is-open {
  pointer-events: auto;
  visibility: visible;
}

.project-viewer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 9, 12, 0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  opacity: 0;
  transition: opacity 0.45s var(--ease-out);
}

.project-viewer.is-open .project-viewer__backdrop {
  opacity: 1;
}

.project-viewer__panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1100px;
  height: calc(100dvh - var(--space-md));
  max-height: calc(100dvh - var(--space-md));
  margin: calc(var(--space-sm) / 2);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 80px rgba(124, 92, 255, 0.08);
  overflow: hidden;
  opacity: 0;
  transform: translateY(48px) scale(0.96);
  transition:
    opacity 0.45s var(--ease-out),
    transform 0.55s var(--ease-out);
}

.project-viewer.is-open .project-viewer__panel {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.project-viewer__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: rgba(15, 17, 21, 0.6);
  flex-shrink: 0;
}

.project-viewer__eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.project-viewer__title {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1.2;
}

.project-viewer__counter {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.project-viewer__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  transition:
    color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.project-viewer__close svg {
  width: 20px;
  height: 20px;
}

.project-viewer__close:hover {
  color: var(--color-text);
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: rotate(90deg);
}

.project-viewer__scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-lg);
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.project-viewer__scroll::-webkit-scrollbar {
  width: 6px;
}

.project-viewer__scroll::-webkit-scrollbar-track {
  background: transparent;
}

.project-viewer__scroll::-webkit-scrollbar-thumb {
  background: rgba(124, 92, 255, 0.35);
  border-radius: 3px;
}

.project-viewer__scroll::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

.project-viewer__desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: var(--space-lg);
}

.project-viewer__gallery {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.project-viewer__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  box-shadow: var(--shadow-md);
}

.project-viewer__image {
  width: 100%;
  height: auto;
  display: block;
}

/* Staggered image reveal inside viewer */
.reveal-image {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}

.reveal-image.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-viewer__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-border);
  flex-shrink: 0;
}

.project-viewer__progress-bar {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.1s linear;
}

/* Contact */
.contact__content {
  max-width: 820px;
  margin-inline: auto;
}

.contact__card {
  padding: var(--space-xl);
  background: var(--color-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
  text-align: center;
}

.contact__lead {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
}

.contact__details-grid {
  display: grid;
  grid-template-columns: repeat(3, 224px);
  justify-content: center;
  gap: var(--space-md);
  text-align: center;
}

.contact__detail {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: rgba(15, 17, 21, 0.5);
  border: 1px solid var(--color-border);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.contact__detail:hover {
  border-color: var(--color-accent-border);
  transform: translateY(-2px);
}

.contact__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-sm);
  border-radius: var(--radius-sm);
  background: rgba(124, 92, 255, 0.12);
  color: var(--color-accent);
}

.contact__label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.contact__social-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact__detail p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.contact__detail a:hover {
  color: var(--color-accent-hover);
}

.contact__divider {
  height: 1px;
  margin-block: var(--space-lg);
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.contact__social-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.contact__social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.contact__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition:
    color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.contact__social-link svg {
  width: 26px;
  height: 26px;
}

.contact__social-link:hover {
  color: var(--color-text);
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

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

.footer__copy,
.footer__credit {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Responsive — Tablet
   ========================================================================== */
@media (max-width: 1024px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery__item:first-child {
    grid-column: span 2;
  }

  .resume__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* ==========================================================================
   Responsive — Mobile
   ========================================================================== */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding-block: var(--space-2xl);
  }

  /* Mobile navigation */
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    height: 100dvh;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-left: 1px solid var(--color-glass-border);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out);
  }

  .nav__menu.open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1rem;
  }

  /* About */
  .about__title {
    font-size: clamp(2.5rem, 12vw, 3.5rem);
  }

  /* Gallery */
  .gallery {
    grid-template-columns: 1fr;
  }

  .gallery__item:first-child {
    grid-column: span 1;
  }

  .gallery__item:first-child .gallery__image-wrap {
    aspect-ratio: 16 / 10;
  }

  /* Skills */
  .skills-grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact__details-grid {
    grid-template-columns: 1fr;
  }

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

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

  /* Software bars */
  .software-list__item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .software-list__name {
    min-width: unset;
  }

  .software-list__bar {
    width: 100%;
  }

  /* Project viewer — full bleed on mobile */
  .project-viewer__panel {
    margin: 0;
    border-radius: 0;
    max-width: 100%;
    height: 100dvh;
    max-height: 100dvh;
    border: none;
  }

  .project-viewer__header {
    padding: var(--space-sm) var(--space-md);
  }

  .project-viewer__scroll {
    padding: var(--space-md);
  }

  .project-viewer__gallery {
    gap: var(--space-md);
  }
}

/* Mobile menu backdrop */
.nav__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-normal) var(--ease-out),
    visibility var(--duration-normal) var(--ease-out);
}

.nav__backdrop.visible {
  opacity: 1;
  visibility: visible;
}

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

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

  .about__bg {
    transition: none;
  }

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

  .project-viewer__panel,
  .project-viewer__backdrop {
    transition: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}