/* ==============================================
   ALEXEY VOROBIEV — PERSONAL SITE
   Futuristic + Rocker | Steel Dark-Gray Palette
   ============================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  --color-bg: #14161a;
  --color-surface: #1e2128;
  --color-surface-alt: #252830;
  --color-surface-light: #2c3038;
  --color-primary: #bcc3cf;
  --color-accent: #f59e0b;
  --color-accent-glow: #fbbf24;
  --color-accent-dim: #b45309;
  --color-text: #e4e4e7;
  --color-text-dim: #9ca3af;
  --color-muted: #6b7280;
  --color-border: #2e323a;
  --color-danger: #ef4444;
  --radius: 12px;
  --radius-lg: 20px;
  --font-heading: 'Russo One', sans-serif;
  --font-body: 'Exo 2', sans-serif;
}

/* ---------- Light Theme — Altai Winter / Морозная зима ---------- */
[data-theme="light"] {
  --color-bg: #f2f5fa;
  --color-surface: #e6ebf4;
  --color-surface-alt: #dbe1ec;
  --color-surface-light: #cdd5e3;
  --color-primary: #0b1622;
  --color-accent: #2979c1;
  --color-accent-glow: #5b9ee0;
  --color-accent-dim: #1a5a8a;
  --color-text: #1a2434;
  --color-text-dim: #445268;
  --color-muted: #6b7d98;
  --color-border: #c8d3e2;
  --color-danger: #b91c1c;
}

/* Light mode — header: frosted glass */
[data-theme="light"] .header {
  background: rgba(242, 245, 250, 0.9);
  box-shadow: 0 1px 20px rgba(11, 22, 34, 0.06);
}

/* Light mode — header bottom border: icy blue */
[data-theme="light"] .header-border {
  background: linear-gradient(90deg, transparent, #a0c4e8, #5b9ee0, #a0c4e8, transparent);
}

/* Light mode — hero radial glows (icy blue) */
[data-theme="light"] .hero::before {
  background: radial-gradient(ellipse at 30% 50%, rgba(41, 121, 193, 0.07) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 30%, rgba(11, 22, 34, 0.03) 0%, transparent 50%);
}

/* Light mode — noise overlay off (clean winter look) */
[data-theme="light"] .noise-overlay {
  display: none;
}

/* Light mode — scanlines off (clean winter look) */
[data-theme="light"] .scanlines {
  display: none;
}

/* Light mode — nav logo */
[data-theme="light"] .nav-logo {
  border-color: var(--color-accent);
}
[data-theme="light"] .nav-logo:hover {
  background: var(--color-accent);
  color: #fff;
}

/* Light mode — btn text color (white on blue) */
[data-theme="light"] .btn-accent {
  color: #fff;
}

/* Light mode — btn hover shadow (blue glow) */
[data-theme="light"] .btn-accent:hover {
  box-shadow: 0 8px 30px rgba(41, 121, 193, 0.4);
}

/* Light mode — scroll line */
[data-theme="light"] .scroll-line {
  background: linear-gradient(to bottom, var(--color-muted), transparent);
}

/* Scroll shadow for both modes */
.header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

/* Light mode — header scroll shadow: icy */
[data-theme="light"] .header.scrolled {
  box-shadow: 0 4px 30px rgba(11, 22, 34, 0.1);
}

/* Light mode — lightbox overlay */
[data-theme="light"] .lightbox {
  background: rgba(242, 245, 250, 0.97);
}

[data-theme="light"] .lightbox img {
  box-shadow: 0 20px 60px rgba(11, 22, 34, 0.12);
}

/* Light mode — lightbox close button hover */
[data-theme="light"] .lightbox-close:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* Light mode — gallery images: no grayscale */
[data-theme="light"] .gallery-item img {
  filter: none;
}
[data-theme="light"] .gallery-item:hover img {
  filter: brightness(1.05);
}

/* Light mode — avatar: no grayscale */
[data-theme="light"] .avatar-img {
  filter: contrast(105%);
}

/* Light mode — blog post hero image */
[data-theme="light"] .blog-post-hero-img {
  filter: none;
}
[data-theme="light"] .blog-post-hero-img:hover {
  filter: brightness(1.05);
}

/* Light mode — blog card image */
[data-theme="light"] .blog-card-image img {
  filter: none;
}
[data-theme="light"] .blog-card:hover .blog-card-image img {
  filter: brightness(1.05);
}

/* ---------- Theme Toggle ---------- */
.theme-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: all 0.25s ease;
  flex-shrink: 0;
  position: relative;
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: all 0.3s ease;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Default (dark mode) — show sun (switch to light), hide moon */
.theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
.theme-toggle .icon-moon { opacity: 0; transform: rotate(90deg) scale(0.5); }

/* Light mode — show moon (switch to dark), hide sun */
[data-theme="light"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

/* ---------- Burger (mobile menu) — three vertical dots ---------- */
.burger {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0;
  transition: all 0.25s ease;
  flex-shrink: 0;
}

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

.burger-dot {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-text);
  transition: all 0.3s ease;
}

/* Burger open state — dots turn into X via transform */
.burger.open .burger-dot:nth-child(1) {
  transform: translateY(4px) rotate(45deg) scaleX(2.5);
  border-radius: 2px;
}

.burger.open .burger-dot:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

.burger.open .burger-dot:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg) scaleX(2.5);
  border-radius: 2px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Noise Overlay ---------- */
.noise-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
}

/* ---------- Scanlines ---------- */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9998;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.04) 2px,
    rgba(0, 0, 0, 0.04) 4px
  );
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  margin-bottom: 48px;
  text-transform: uppercase;
}

.title-accent {
  color: var(--color-accent);
}

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 32px;
  background: rgba(20, 22, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.35s ease;
}

.header.hidden {
  transform: translateY(-100%);
}

.header-border {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), var(--color-accent), var(--color-accent-dim), transparent);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.08em;
  position: relative;
  padding: 4px 8px;
  border: 2px solid var(--color-accent);
  transition: all 0.3s ease;
}

.nav-logo:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 28px;
}

.nav-link {
  color: var(--color-text-dim);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link:hover::after {
  width: 100%;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 30% 50%, rgba(245, 158, 11, 0.04) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 30%, rgba(188, 195, 207, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1000px;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* Hero Visual — Avatar + Decor */
.hero-visual {
  position: relative;
  width: 260px;
  height: 320px;
  flex-shrink: 0;
}

.avatar-frame {
  position: relative;
  width: 220px;
  height: 280px;
  z-index: 2;
}

.avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 24px;
  border: 2px solid var(--color-accent);
  animation: ring-pulse 2s ease-in-out infinite;
  transform: rotate(-3deg);
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  filter: grayscale(20%) contrast(110%);
  clip-path: polygon(0% 8%, 100% 0%, 92% 100%, 0% 92%);
}

/* Decor elements */
.hero-decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.decor-line {
  position: absolute;
  background: var(--color-accent);
  opacity: 0.5;
}

.decor-line-1 {
  top: 20px;
  left: -40px;
  width: 30px;
  height: 2px;
}

.decor-line-2 {
  bottom: 40px;
  right: -30px;
  width: 40px;
  height: 2px;
}

.decor-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.decor-dot-1 {
  top: 60px;
  right: -10px;
}

.decor-dot-2 {
  bottom: 80px;
  left: -20px;
}

.decor-circle {
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 50px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  opacity: 0.6;
}

@keyframes ring-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Hero Content */
.hero-content {
  max-width: 560px;
}

.hero-pre {
  font-family: var(--font-heading);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.hero-title {
  font-size: clamp(36px, 6vw, 64px);
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: 16px;
  color: var(--color-primary);
}

/* Glitch effect */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: var(--color-primary);
}

.glitch::before {
  animation: glitch-shift 2.5s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
  color: var(--color-accent);
  opacity: 0.5;
  left: 2px;
}

.glitch::after {
  animation: glitch-shift 3s infinite linear alternate;
  clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
  color: var(--color-danger);
  opacity: 0.3;
  left: -2px;
}

@keyframes glitch-shift {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 1px); }
  40% { transform: translate(2px, -1px); }
  60% { transform: translate(-1px, -1px); }
  80% { transform: translate(1px, 1px); }
  100% { transform: translate(0); }
}

.hero-sub {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.hero-tagline {
  font-size: 16px;
  color: var(--color-text-dim);
  margin-bottom: 32px;
  max-width: 440px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--font-heading);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-bg);
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0% 100%);
}

.btn-accent:hover {
  background: var(--color-accent-glow);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.3);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 16px;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.6;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-muted), transparent);
  animation: scroll-line 1.5s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% { transform: scaleY(0.3); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
}

/* ---------- About ---------- */
.about {
  padding: 100px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card-steel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 36px 28px;
  position: relative;
  transition: all 0.3s ease;
  overflow: hidden;
}

.card-steel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), var(--color-accent), var(--color-accent-dim), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card-steel:hover {
  border-color: var(--color-accent-dim);
  background: var(--color-surface-alt);
  transform: translateY(-4px);
}

.card-steel:hover::before {
  opacity: 1;
}

.card-icon {
  width: 44px;
  height: 44px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card-steel h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.card-steel p {
  color: var(--color-text-dim);
  font-size: 15px;
  line-height: 1.6;
}

/* ---------- Fuel Section ---------- */
.fuel {
  padding: 100px 0;
  background: var(--color-surface);
  position: relative;
}

.fuel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), transparent);
}

.fuel::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), transparent);
}

.fuel-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.fuel-block {
  display: flex;
  gap: 28px;
  padding: 32px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  position: relative;
}

.fuel-block:hover {
  border-color: var(--color-accent-dim);
  background: var(--color-surface-light);
}

.fuel-visual {
  flex-shrink: 0;
  width: 80px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 4px;
}

.beer-svg {
  width: 64px;
  height: auto;
  color: var(--color-accent);
}

/* Music EQ animation */
.music-eq {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 64px;
}

.eq-bar {
  width: 8px;
  background: var(--color-accent);
  border-radius: 2px;
  animation: eq-bounce 0.8s ease-in-out infinite;
}

.eq-bar-1 { height: 40%; animation-delay: 0s; }
.eq-bar-2 { height: 70%; animation-delay: 0.15s; }
.eq-bar-3 { height: 100%; animation-delay: 0.3s; }
.eq-bar-4 { height: 55%; animation-delay: 0.45s; }
.eq-bar-5 { height: 30%; animation-delay: 0.6s; }

@keyframes eq-bounce {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.4); }
}

.fuel-content h3 {
  font-size: 22px;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.fuel-content p {
  color: var(--color-text-dim);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 14px;
}

.fuel-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  padding: 4px 12px;
  border: 1px solid var(--color-accent-dim);
  border-radius: 2px;
}

/* ---------- Work Section ---------- */
.work {
  padding: 100px 0;
}

/* Marquee */
.work-marquee {
  overflow: hidden;
  padding: 16px 0;
  margin-bottom: 48px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.marquee-track {
  display: flex;
  gap: 20px;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
  font-family: var(--font-heading);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

.marquee-sep {
  color: var(--color-accent);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Stats */
.work-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.work-stat {
  text-align: center;
  padding: 40px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.work-stat::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.work-stat:hover {
  border-color: var(--color-accent-dim);
  transform: translateY(-4px);
}

.work-stat:hover::after {
  opacity: 1;
}

.stat-num {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 44px);
  color: var(--color-accent);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Work Projects Teaser ---------- */
.work-projects {
  margin-top: 56px;
}

.work-projects-title {
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 32px);
  margin-bottom: 28px;
  text-transform: uppercase;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.work-projects-all {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.work-projects-all:hover {
  color: var(--color-accent);
}

.work-projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.work-project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 22px 18px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all 0.25s ease;
  position: relative;
  cursor: pointer;
}

.work-project-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.work-project-card:hover {
  border-color: var(--color-accent-dim);
  background: var(--color-surface-alt);
  transform: translateY(-3px);
}

.work-project-card:hover::after {
  opacity: 1;
}

.wp-card-title {
  font-family: var(--font-heading);
  font-size: 14px;
  color: var(--color-primary);
  text-transform: uppercase;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.wp-card-sub {
  font-size: 12px;
  color: var(--color-text-dim);
  line-height: 1.4;
}

.wp-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: auto;
}

.wp-tag {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  padding: 2px 6px;
  border: 1px solid var(--color-accent-dim);
}

@media (max-width: 900px) {
  .work-projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .work-projects-grid {
    grid-template-columns: 1fr;
  }

  .work-projects-title {
    flex-direction: column;
    gap: 4px;
  }
}

/* ---------- Gallery ---------- */
.gallery-section {
  padding: 100px 0;
  background: var(--color-surface);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(30%) contrast(110%);
  transition: all 0.4s ease;
}

.gallery-item::after {
  content: '🔍';
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 18px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 2;
}

.gallery-item:hover {
  border-color: var(--color-accent);
}

.gallery-item:hover img {
  filter: grayscale(0%) contrast(100%);
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(10, 11, 13, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  cursor: pointer;
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.lightbox.open img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1;
  transition: all 0.2s ease;
}

.lightbox-close:hover {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}

/* ---------- Contact ---------- */
.contact {
  padding: 100px 0;
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.contact-item h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: 6px;
}

.contact-link {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.contact-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.contact-cta {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.contact-cta p {
  color: var(--color-text-dim);
  margin-bottom: 20px;
  font-size: 16px;
}

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0;
  text-align: center;
  background: var(--color-bg);
  position: relative;
}

.footer-border {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.footer p {
  color: var(--color-text-dim);
  font-size: 14px;
}

.footer-muted {
  color: var(--color-muted) !important;
  font-size: 12px !important;
  margin-top: 6px;
}

/* ---------- Scroll Reveal ---------- */
.section-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-visual {
    margin: 0 auto;
    width: 220px;
    height: 280px;
  }

  .avatar-frame {
    width: 180px;
    height: 240px;
    margin: 0 auto;
  }

  .hero-tagline {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .nav-list {
    gap: 16px;
  }

  .nav-link {
    font-size: 12px;
  }

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

  .fuel-split {
    grid-template-columns: 1fr;
  }

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

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

  .contact-card {
    padding: 32px 24px;
  }

  .hero {
    padding-top: 140px;
  }
}

@media (max-width: 480px) {
  .nav {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .nav-logo {
    order: 1;
  }

  .theme-toggle {
    order: 2;
  }

  .burger {
    display: flex;
    order: 3;
    margin-left: auto;
  }

  .nav-list {
    order: 4;
    width: 100%;
    gap: 0;
    flex-direction: column;
    align-items: stretch;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, gap 0.35s ease;
  }

  .nav-list.open {
    max-height: 300px;
    gap: 4px;
  }

  .nav-link {
    font-size: 13px;
    padding: 10px 12px;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

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

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

  .hero {
    padding-top: 150px;
  }

  .fuel-block {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* ---------- Particle Canvas ---------- */
.particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* ---------- Active Nav Link ---------- */
.nav-link.active {
  color: var(--color-accent) !important;
}

.nav-link.active::after {
  width: 100%;
}

/* ---------- Blog Header ---------- */
.blog-header {
  padding: 160px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-header::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 50% 40%, rgba(245, 158, 11, 0.05) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 70%, rgba(188, 195, 207, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.blog-pre {
  font-family: var(--font-heading);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.blog-title {
  font-family: var(--font-heading);
  font-size: clamp(36px, 6vw, 64px);
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.blog-title .title-accent {
  color: var(--color-accent);
}

.blog-sub {
  font-size: 16px;
  color: var(--color-text-dim);
  max-width: 480px;
  margin: 0 auto;
}

/* ---------- Blog Listing ---------- */
.blog-listing {
  padding: 0 0 100px;
  position: relative;
  z-index: 1;
}

.blog-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  max-width: 780px;
  margin: 0 auto;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.blog-card:hover {
  border-color: var(--color-accent-dim);
  background: var(--color-surface-alt);
  transform: translateY(-4px);
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.blog-card:hover::before {
  opacity: 1;
}

/* image wrapper — 16:9, clips the image */
.blog-card-image {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(25%) contrast(105%);
  transition: all 0.5s ease;
}

.blog-card:hover .blog-card-image img {
  filter: grayscale(0%) contrast(110%);
  transform: scale(1.04);
}

/* content below image */
.blog-card-body {
  padding: 28px 32px 32px;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.blog-date {
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.03em;
}

.blog-topic {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  padding: 3px 10px;
  border: 1px solid var(--color-accent-dim);
}

.blog-card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.blog-card-title {
  color: var(--color-primary);
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--color-accent);
}

.blog-card-summary {
  font-size: 14px;
  color: var(--color-text-dim);
  line-height: 1.6;
  max-width: 600px;
}

/* ---------- Blog Post Hero Image ---------- */
.blog-post-hero {
  max-width: 860px;
  margin: 0 auto 40px;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.blog-post-hero-img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  filter: grayscale(20%) contrast(105%);
  transition: all 0.4s ease;
}

.blog-post-hero-img:hover {
  filter: grayscale(0%) contrast(110%);
  border-color: var(--color-accent-dim);
}

/* ---------- Blog Post Page ---------- */
.blog-post {
  padding: 140px 0 60px;
  position: relative;
  z-index: 1;
}

.blog-post-header {
  text-align: center;
  padding-bottom: 40px;
  margin-bottom: 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.blog-post-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 30%;
  right: 30%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.blog-back {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  text-decoration: none;
  margin-bottom: 20px;
  transition: color 0.2s ease;
}

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

.blog-post-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.blog-post-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 44px);
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.blog-post-summary {
  font-size: 17px;
  color: var(--color-text-dim);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.blog-post-content {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
}

.blog-post-content p {
  margin-bottom: 20px;
}

.blog-post-content h2 {
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--color-primary);
  margin: 40px 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.blog-post-content h2::before {
  content: '# ';
  color: var(--color-accent);
}

.blog-post-content ul {
  margin: 0 0 20px 24px;
  color: var(--color-text-dim);
}

.blog-post-content li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.blog-post-content strong {
  color: var(--color-primary);
  font-weight: 600;
}

.blog-post-content em {
  color: var(--color-text-dim);
}

.blog-post-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 40px 0;
}

.blog-post-content a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Blog post callout (author preamble) */
.blog-post-callout {
  background: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: 20px 24px;
  margin-bottom: 32px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-dim);
}

.blog-post-callout p {
  margin: 0;
}

.blog-post-callout strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* Finale variant — extra breathing room */
.blog-post-finale {
  margin-top: 40px;
}

.blog-post-finale p {
  margin-bottom: 12px;
}

.blog-post-finale p:last-child {
  margin-bottom: 0;
}

[data-theme="light"] .blog-post-callout {
  background: var(--color-surface-alt);
}

/* Blog post figures (screenshots) */
.blog-post-figure {
  margin: 32px auto;
  text-align: center;
  max-width: 380px;
}

.blog-post-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-post-figure img:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.blog-post-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.4;
}

@media (max-width: 768px) {
  .blog-post {
    padding: 120px 0 40px;
  }

  .blog-post-content {
    font-size: 15px;
  }

  .blog-post-title {
    font-size: clamp(22px, 6vw, 32px);
  }

  .blog-post-figure {
    max-width: 280px;
  }
}

/* ---------- Typewriter ---------- */
.typewriter-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0;
}

.typewriter-static {
  margin-right: 0.4em;
}

.typewriter-dynamic {
  color: var(--color-accent);
}

/* ---------- Typewriter Cursor ---------- */
.typewriter-cursor {
  display: inline-block;
  color: var(--color-accent);
  animation: blink 0.8s step-end infinite;
  font-weight: 100;
  margin-left: 2px;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@media (max-width: 380px) {
  .nav-link {
    font-size: 10px;
  }

  .nav-list {
    gap: 6px;
  }
}

/* ---------- Blog Mobile ---------- */
@media (max-width: 768px) {
  .blog-card-body {
    padding: 20px 20px 24px;
  }

  .blog-card-title {
    font-size: 18px;
  }

  .blog-pre {
    font-size: 11px;
  }
}

/* ---------- Snowfall — light theme only ---------- */
.snowfall-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  display: none;
}

[data-theme="light"] .snowfall-container {
  display: block;
}

.snowflake {
  position: absolute;
  top: -40px;
  color: #b8d4f0;
  font-size: 1em;
  animation: snowfall linear infinite;
  opacity: 0;
  text-shadow: 0 0 4px rgba(41, 121, 193, 0.3);
}

@keyframes snowfall {
  0% {
    transform: translateY(-5vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
  2% {
    opacity: 0.8;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(105vh) translateX(var(--drift)) rotate(360deg);
    opacity: 0;
  }
}

/* ---------- Snowdrifts — light theme only ---------- */

/* Cards: frost cap on top */
[data-theme="light"] .card-steel,
[data-theme="light"] .work-stat,
[data-theme="light"] .work-project-card,
[data-theme="light"] .fuel-block,
[data-theme="light"] .contact-card,
[data-theme="light"] .blog-card {
  position: relative;
}

[data-theme="light"] .card-steel::before,
[data-theme="light"] .work-stat::before,
[data-theme="light"] .work-project-card::before,
[data-theme="light"] .fuel-block::before,
[data-theme="light"] .contact-card::before,
[data-theme="light"] .blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 10px;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.95) 0%,
    rgba(190, 215, 245, 0.75) 40%,
    transparent 100%);
  border-radius: 0 0 60% 40% / 0 0 100% 80%;
  z-index: 2;
  pointer-events: none;
  opacity: 1;
  transition: none;
}

/* Slight variation — every 2nd card gets different drift shape */
[data-theme="light"] .about-card:nth-child(2)::before,
[data-theme="light"] .work-project-card:nth-child(2)::before,
[data-theme="light"] .work-project-card:nth-child(4)::before {
  border-radius: 0 0 35% 65% / 0 0 70% 100%;
  height: 8px;
}

[data-theme="light"] .about-card:nth-child(3)::before,
[data-theme="light"] .work-project-card:nth-child(3)::before {
  border-radius: 0 0 70% 30% / 0 0 90% 60%;
  height: 12px;
}

/* Sections: subtle top frost */
[data-theme="light"] .about::before,
[data-theme="light"] .fuel::before,
[data-theme="light"] .work::before,
[data-theme="light"] .gallery-section::before,
[data-theme="light"] .contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(180, 210, 240, 0.7) 15%,
    rgba(255, 255, 255, 0.9) 45%,
    rgba(180, 210, 240, 0.7) 85%,
    transparent 100%);
  z-index: 1;
  pointer-events: none;
  opacity: 1;
}

/* Section containers need relative for ::before */
[data-theme="light"] .about,
[data-theme="light"] .fuel,
[data-theme="light"] .work,
[data-theme="light"] .gallery-section,
[data-theme="light"] .contact {
  position: relative;
}

/* Footer: snowdrift at the bottom */
[data-theme="light"] .footer::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 24px;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(200, 220, 245, 0.8) 30%,
    rgba(255, 255, 255, 0.95) 70%,
    rgba(245, 248, 252, 1) 100%);
  border-radius: 70% 80% 0 0 / 80% 90% 0 0;
  pointer-events: none;
  opacity: 1;
}

/* Hero section: a touch of frost on the bottom edge */
[data-theme="light"] .hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg,
    transparent 5%,
    rgba(180, 210, 240, 0.7) 25%,
    rgba(255, 255, 255, 0.9) 50%,
    rgba(180, 210, 240, 0.7) 75%,
    transparent 95%);
  z-index: 1;
  pointer-events: none;
  opacity: 1;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .glitch::before,
  .glitch::after {
    animation: none;
  }

  .marquee-track {
    animation: none;
  }

  .eq-bar {
    animation: none;
  }

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