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

:root {
  --cyan: #00a884;
  --magenta: #c026d3;
  --orange: #ea580c;
  --blue: #0284c7;
  --gradient: linear-gradient(135deg, var(--cyan), var(--magenta), var(--orange));
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Noto Sans SC', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;

  /* light (default) */
  --bg: #f6f7fb;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --border: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(15, 23, 42, 0.14);
  --text: #1a1a2e;
  --text-muted: #64748b;
  --header-bg: rgba(255, 255, 255, 0.82);
  --nav-mobile-bg: rgba(255, 255, 255, 0.96);
  --grid-line: rgba(15, 23, 42, 0.04);
  --glow-opacity-1: 0.18;
  --glow-opacity-2: 0.12;
  --hero-logo-border: rgba(15, 23, 42, 0.08);
  --hero-logo-shadow: 0 0 40px rgba(0, 168, 132, 0.12), 0 0 80px rgba(192, 38, 211, 0.08);
  --btn-primary-shadow: 0 4px 20px rgba(0, 168, 132, 0.2);
  --btn-primary-shadow-hover: 0 8px 28px rgba(0, 168, 132, 0.28);
  --download-btn-bg: rgba(255, 255, 255, 0.9);
  --download-btn-bg-hover: #fff;
  --scroll-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --card-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

[data-theme="dark"] {
  --cyan: #00d4aa;
  --magenta: #e040fb;
  --orange: #ff6b35;
  --blue: #4fc3f7;
  --bg: #0a0a0f;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text: #e8e8ed;
  --text-muted: #8888a0;
  --header-bg: rgba(10, 10, 15, 0.75);
  --nav-mobile-bg: rgba(10, 10, 15, 0.95);
  --grid-line: rgba(255, 255, 255, 0.03);
  --glow-opacity-1: 0.35;
  --glow-opacity-2: 0.25;
  --hero-logo-border: rgba(255, 255, 255, 0.1);
  --hero-logo-shadow: 0 0 60px rgba(0, 212, 170, 0.15), 0 0 120px rgba(224, 64, 251, 0.1);
  --btn-primary-shadow: 0 4px 24px rgba(0, 212, 170, 0.25);
  --btn-primary-shadow-hover: 0 8px 32px rgba(0, 212, 170, 0.35);
  --download-btn-bg: rgba(255, 255, 255, 0.06);
  --download-btn-bg-hover: rgba(255, 255, 255, 0.1);
  --scroll-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --card-shadow: none;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ===== Background Effects ===== */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: var(--glow-opacity-1);
  pointer-events: none;
  z-index: 0;
}
.bg-glow--1 {
  width: 600px; height: 600px;
  background: var(--cyan);
  top: -200px; right: -100px;
}
.bg-glow--2 {
  width: 500px; height: 500px;
  background: var(--magenta);
  bottom: -150px; left: -100px;
  opacity: var(--glow-opacity-2);
}
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* ===== Utilities ===== */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge--promo {
  background: rgba(255, 107, 53, 0.12);
  border: 1px solid rgba(255, 107, 53, 0.3);
  color: var(--orange);
}
.badge__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--orange);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}
.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--btn-primary-shadow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--btn-primary-shadow-hover);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}
.btn--lg { padding: 14px 32px; font-size: 16px; }
.btn--sm { padding: 8px 20px; font-size: 14px; }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.25s ease;
}
.header--scrolled {
  box-shadow: var(--scroll-shadow);
}
.nav {
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}
.nav__logo {
  width: 36px; height: 36px;
  border-radius: 50%;
  object-fit: cover;
}
.nav__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.nav__links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--text); }
.theme-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}
.theme-toggle__icon {
  position: absolute;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.theme-toggle__icon--sun { opacity: 1; transform: scale(1); }
.theme-toggle__icon--moon { opacity: 0; transform: scale(0.8); }
[data-theme="dark"] .theme-toggle__icon--sun { opacity: 0; transform: scale(0.8); }
[data-theme="dark"] .theme-toggle__icon--moon { opacity: 1; transform: scale(1); }
.nav__cta { margin-left: 8px; }
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  z-index: 1;
  padding: 140px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero__title {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 900;
  line-height: 1.15;
  margin: 20px 0 16px;
  letter-spacing: -0.02em;
}
.hero__subtitle {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
}
.hero__subtitle strong {
  color: var(--cyan);
  font-weight: 600;
}
.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero__stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat__value {
  display: block;
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}
.stat__label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}
.stat__divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Hero Visual */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__logo-ring {
  position: relative;
  width: 380px;
  height: 380px;
}
.hero__logo-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: var(--gradient);
  opacity: 0.15;
  filter: blur(40px);
  animation: glow-rotate 8s linear infinite;
}
@keyframes glow-rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.hero__logo-img {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--hero-logo-border);
  box-shadow: var(--hero-logo-shadow);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero__float {
  position: absolute;
  padding: 8px 16px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  animation: float 5s ease-in-out infinite;
}
.hero__float--1 {
  top: 10%; left: -5%;
  color: var(--cyan);
  animation-delay: -1s;
}
.hero__float--2 {
  top: 50%; right: -10%;
  color: var(--magenta);
  animation-delay: -2.5s;
}
.hero__float--3 {
  bottom: 8%; left: 5%;
  color: var(--orange);
  animation-delay: -4s;
}

/* ===== Model Banner ===== */
.model-banner {
  position: relative;
  z-index: 1;
  padding: 0 0 80px;
}
.model-banner__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}
.model-banner__icon {
  flex-shrink: 0;
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(0, 212, 170, 0.1);
  color: var(--cyan);
}
.model-banner__text { flex: 1; }
.model-banner__text h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}
.model-banner__text p {
  font-size: 14px;
  color: var(--text-muted);
}
.model-banner__tag {
  flex-shrink: 0;
  text-align: center;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.25);
}
.model-banner__tag-label {
  display: block;
  font-size: 11px;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}
.model-banner__tag-value {
  font-size: 22px;
  font-weight: 900;
  color: var(--orange);
}

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ===== Features ===== */
.features {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  position: relative;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  transition: all 0.3s ease;
}
.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}
.feature-card--highlight {
  border-color: rgba(224, 64, 251, 0.25);
  background: rgba(224, 64, 251, 0.04);
}
.feature-card--highlight:hover {
  border-color: rgba(224, 64, 251, 0.4);
  box-shadow: 0 8px 40px rgba(224, 64, 251, 0.12);
}
.feature-card__badge {
  position: absolute;
  top: 16px; right: 16px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(224, 64, 251, 0.15);
  color: var(--magenta);
}
.feature-card__icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  margin-bottom: 20px;
}
.feature-card__icon--cyan { background: rgba(0, 212, 170, 0.12); color: var(--cyan); }
.feature-card__icon--magenta { background: rgba(224, 64, 251, 0.12); color: var(--magenta); }
.feature-card__icon--orange { background: rgba(255, 107, 53, 0.12); color: var(--orange); }
.feature-card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card__desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.feature-card__list li {
  font-size: 13px;
  color: var(--text-muted);
  padding: 4px 0;
  padding-left: 18px;
  position: relative;
}
.feature-card__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
  font-size: 12px;
}

/* ===== Workflow ===== */
.workflow {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
.workflow__steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
}
.workflow-step {
  flex: 1;
  max-width: 220px;
  text-align: center;
  padding: 28px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s;
}
.workflow-step:hover { transform: translateY(-4px); }
.workflow-step__num {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.workflow-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.workflow-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}
.workflow-step__arrow {
  flex-shrink: 0;
  align-self: center;
  font-size: 20px;
  color: var(--text-muted);
  opacity: 0.4;
}

/* ===== Gallery ===== */
.gallery {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gallery__item {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.gallery__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 168, 132, 0.12);
}
.gallery__item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

/* ===== FAQ ===== */
.faq {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}
.faq__list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq__item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s;
}
.faq__item[open] {
  border-color: rgba(0, 168, 132, 0.3);
}
.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq__question::-webkit-details-marker { display: none; }
.faq__chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}
.faq__item[open] .faq__chevron { transform: rotate(180deg); }
.faq__answer {
  padding: 0 24px 24px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}
.faq__answer p + p { margin-top: 8px; }
.faq__highlight {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(0, 168, 132, 0.08);
  border: 1px solid rgba(0, 168, 132, 0.2);
  color: var(--text);
}
.faq__highlight strong { color: var(--cyan); }
.faq__platform + .faq__platform {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.faq__platform h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.faq__platform img {
  margin-top: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.faq__bullets li {
  padding: 4px 0 4px 18px;
  position: relative;
}
.faq__bullets li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
}

/* ===== Contact ===== */
.contact {
  position: relative;
  z-index: 1;
  padding: 0 0 80px;
}
.contact__card {
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}
.contact__info { flex: 1; }
.contact__title {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 900;
  margin: 12px 0 20px;
}
.contact__list li {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  padding: 4px 0 4px 18px;
  position: relative;
}
.contact__list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
  font-size: 12px;
}
.contact__promo {
  margin-top: 24px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: rgba(234, 88, 12, 0.06);
  border: 1px solid rgba(234, 88, 12, 0.2);
}
.contact__promo .badge { margin-bottom: 8px; }
.contact__promo p {
  font-size: 14px;
  color: var(--text-muted);
}
.contact__promo strong { color: var(--orange); }
.contact__qr {
  flex-shrink: 0;
  text-align: center;
}
.contact__qr img {
  width: 180px;
  height: 180px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 10px;
}
.contact__qr span {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Download ===== */
.download {
  position: relative;
  z-index: 1;
  padding: 80px 0 120px;
}
.download__card {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
}
.download__glow {
  position: absolute;
  top: -50%; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 400px;
  background: var(--gradient);
  opacity: 0.08;
  filter: blur(80px);
  pointer-events: none;
}
.download__content {
  position: relative;
  text-align: center;
  padding: 64px 40px;
}
.download__badge { margin-bottom: 20px; }
.download__title {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 900;
  margin-bottom: 12px;
}
.download__desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.download__buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 32px;
  min-width: 280px;
  background: var(--download-btn-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  transition: all 0.3s ease;
  text-align: left;
}
.download-btn:hover {
  background: var(--download-btn-bg-hover);
  border-color: rgba(0, 212, 170, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 212, 170, 0.15);
}
.download-btn svg { flex-shrink: 0; opacity: 0.8; }
.download-btn__platform {
  display: block;
  font-size: 18px;
  font-weight: 700;
}
.download-btn__info {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}
.download__note {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
}
.footer__logo {
  width: 28px; height: 28px;
  border-radius: 50%;
  object-fit: cover;
}
.footer__copy {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__subtitle { margin-left: auto; margin-right: auto; }
  .hero__actions { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { order: -1; }
  .hero__logo-ring { width: 260px; height: 260px; }
  .hero__float { display: none; }
  .features__grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .workflow__steps { flex-direction: column; align-items: center; }
  .workflow-step { max-width: 100%; width: 100%; }
  .workflow-step__arrow { transform: rotate(90deg); }
  .model-banner__inner { flex-direction: column; text-align: center; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
  .contact__card { flex-direction: column; text-align: center; padding: 32px 24px; }
  .contact__list li { text-align: left; }
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .theme-toggle { margin-left: auto; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--nav-mobile-bg);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero { padding-top: 100px; }
  .hero__stats { flex-direction: column; gap: 16px; }
  .stat__divider { width: 40px; height: 1px; }
  .gallery__grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
  .download-btn { min-width: 100%; }
  .footer__inner { flex-direction: column; gap: 12px; text-align: center; }
}