:root {
  --color-bg: #0b1220;
  --color-bg-elevated: #111827;
  --color-surface: #ffffff;
  --color-surface-muted: #f8fafc;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-text: #0f172a;
  --color-text-muted: #64748b;
  --color-text-inverse: #f1f5f9;
  --color-primary: #11a791;
  --color-primary-hover: #0fb991;
  --color-primary-soft: rgba(17, 167, 145, 0.12);
  --color-accent: #0ab599;
  --color-success: #059669;
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-navy: #0f172a;
  --color-slate: #1e293b;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container: 1120px;
  --container-narrow: 720px;
  --header-h: 72px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-surface-muted);
  -webkit-font-smoothing: antialiased;
}

body.modal-open {
  overflow: hidden;
}

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

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

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

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

.btn-secondary:hover {
  background: var(--color-surface-muted);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.875rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

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

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  /* background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); */
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-weight: 700;
  font-size: 1rem;
}

.brand-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  padding: 8px 12px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
  background: var(--color-surface-muted);
}

.header-cta {
  display: none;
  margin-left: 8px;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  margin-left: auto;
  padding: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.menu-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

.mobile-menu {
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 16px 24px 24px;
}

.mobile-menu[hidden] {
  display: none;
}

.nav-mobile {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-mobile .nav-link {
  padding: 12px 16px;
}

.nav-mobile .btn {
  margin-top: 12px;
}

@media (min-width: 900px) {
  .nav-desktop {
    display: flex;
  }
  .header-cta {
    display: inline-flex;
  }
  .menu-toggle {
    display: none;
  }
  .mobile-menu {
    display: none !important;
  }
}

/* Hero */
.hero {
  position: relative;
  padding: 64px 0 80px;
  background: var(--color-bg);
  color: var(--color-text-inverse);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(17, 167, 145, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(10, 181, 153, 0.1), transparent);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 12px;
}

.hero .eyebrow {
  color: var(--color-accent);
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
}

.hero-lead {
  margin: 0 0 32px;
  font-size: 1.0625rem;
  color: #94a3b8;
  max-width: 36em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero .btn-secondary {
  color: #e2e8f0;
  border-color: #334155;
}

.hero .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border-color: #475569;
}

.hero-visual {
  display: none;
}

.device-stack {
  position: relative;
  height: 320px;
}

.device {
  position: absolute;
  width: 160px;
  height: 280px;
  border-radius: 24px;
  border: 2px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(160deg, #1e293b 0%, #0f172a 100%);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
}

.device::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.15);
}

.device-1 {
  left: 20%;
  top: 20px;
  transform: rotate(-8deg);
  background: linear-gradient(160deg, #134e4a 0%, #0f172a 100%);
}

.device-2 {
  left: 40%;
  top: 0;
  z-index: 2;
  background: linear-gradient(160deg, #1e3a5f 0%, #0f172a 100%);
}

.device-3 {
  left: 58%;
  top: 28px;
  transform: rotate(6deg);
  background: linear-gradient(160deg, #14532d 0%, #0f172a 100%);
}

@media (min-width: 900px) {
  .hero {
    padding: 96px 0 112px;
  }
  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
  }
  .hero-visual {
    display: block;
  }
}

/* Trust strip */
.trust-strip {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.trust-item {
  text-align: center;
}

.trust-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.01em;
}

.trust-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

@media (min-width: 600px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .trust-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* Sections common */
.section-header {
  max-width: 640px;
  margin-bottom: 40px;
}

.section-header h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-navy);
  line-height: 1.25;
}

.section-lead {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

/* Samples */
.samples-section {
  padding: 80px 0;
  background: var(--color-surface-muted);
}

.samples-controls {
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.search-input {
  width: 100%;
  max-width: 400px;
  padding: 12px 16px;
  font-size: 0.9375rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 8px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.chip:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.chip.active {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: #fff;
}

.chip:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.samples-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 600px) {
  .samples-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .samples-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.sample-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.sample-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.sample-image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-slate);
  cursor: pointer;
}

.sample-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.sample-card:hover .sample-image-wrap img {
  transform: scale(1.04);
}

.sample-number {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(15, 23, 42, 0.85);
  color: #fff;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.sample-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
}

.sample-category {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.sample-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.3;
}

.sample-desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex: 1;
}

.sample-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.sample-tags li {
  font-size: 0.6875rem;
  font-weight: 500;
  padding: 4px 8px;
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-muted);
}

.sample-actions {
  margin-top: 8px;
}

.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* Process */
.process-section {
  padding: 80px 0;
  background: var(--color-surface);
}

.process-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.process-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.process-step:last-child {
  border-bottom: none;
}

.process-num {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.5;
}

.process-body h3 {
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy);
}

.process-body p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

@media (min-width: 700px) {
  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 32px;
  }
}

@media (min-width: 1000px) {
  .process-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Backend */
.backend-section {
  padding: 80px 0;
  background: var(--color-bg);
  color: var(--color-text-inverse);
}

.backend-section .section-header h2 {
  color: #fff;
}

.backend-section .section-lead {
  color: #94a3b8;
}

.backend-section .eyebrow {
  color: var(--color-accent);
}

.architecture {
  display: grid;
  gap: 40px;
}

@media (min-width: 800px) {
  .architecture {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}

.arch-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.arch-node {
  width: 100%;
  max-width: 260px;
  padding: 16px 20px;
  text-align: center;
  font-weight: 600;
  font-size: 0.9375rem;
  background: var(--color-bg-elevated);
  border: 1px solid #1e293b;
  border-radius: var(--radius-md);
  color: #e2e8f0;
}

.arch-arrow {
  color: var(--color-primary);
  font-size: 1.25rem;
  line-height: 1;
}

.arch-services-title {
  margin: 0 0 16px;
  font-size: 1rem;
  font-weight: 600;
  color: #e2e8f0;
}

.service-tags {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-tags li {
  padding: 8px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
  background: var(--color-bg-elevated);
  border: 1px solid #1e293b;
  border-radius: 999px;
  color: #94a3b8;
}

.arch-note {
  margin: 0;
  font-size: 0.875rem;
  color: #64748b;
  line-height: 1.6;
}

/* Tech */
.tech-section {
  padding: 80px 0;
  background: var(--color-surface-muted);
}

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

@media (min-width: 600px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tech-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.tech-card h3 {
  margin: 0 0 16px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-navy);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.tech-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tech-card li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}

.tech-card li:last-child {
  border-bottom: none;
}

/* Final CTA */
.final-cta {
  padding: 80px 0;
  background: var(--color-surface);
}

.final-cta-inner {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
}

.final-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-navy);
}

.final-cta p {
  margin: 0 0 28px;
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

.final-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* Footer */
.site-footer {
  background: var(--color-bg);
  color: #94a3b8;
  padding: 64px 0 32px;
}

.footer-inner {
  display: grid;
  gap: 40px;
}

.footer-brand {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.footer-brand .brand-mark {
  width: 40px;
  height: 40px;
}

.footer-brand strong {
  display: block;
  color: #f1f5f9;
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.footer-brand p {
  margin: 0;
  font-size: 0.875rem;
  max-width: 320px;
  line-height: 1.5;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (min-width: 600px) {
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-col h4 {
  margin: 0 0 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #e2e8f0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: #94a3b8;
  padding: 4px 0;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid #1e293b;
  font-size: 0.8125rem;
}

.footer-bottom p {
  margin: 0;
}

.social {
  display: flex;
  gap: 12px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  color: #94a3b8;
  font-size: 0.75rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition);
}

.social-link:hover {
  background: #1e293b;
  color: #fff;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(15, 23, 42, 0.6);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 24px 16px;
  overflow-y: auto;
}

.modal-overlay[hidden] {
  display: none;
}

.modal-dialog {
  position: relative;
  width: 100%;
  max-width: 720px;
  margin: 40px auto;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-height: calc(100vh - 80px);
  display: flex;
  flex-direction: column;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: none;
  background: var(--color-surface-muted);
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.modal-close:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.modal-close:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.modal-content {
  padding: 32px 28px 40px;
  overflow-y: auto;
}

.modal-category {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 8px;
}

.modal-title {
  margin: 0 0 16px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  padding-right: 40px;
}

.modal-section {
  margin-bottom: 24px;
}

.modal-section h4 {
  margin: 0 0 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.modal-section p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.modal-section ul {
  margin: 0;
  padding-left: 1.25em;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.modal-section li {
  margin-bottom: 4px;
}

.modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.meta-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 999px;
}

.modal-cta {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

/* Lightbox */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(11, 18, 32, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 16px;
}

.lightbox-overlay[hidden] {
  display: none;
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 44px;
  height: 44px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.75rem;
  border-radius: 50%;
  cursor: pointer;
  transition: background var(--transition);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-close:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.75rem;
  border-radius: 50%;
  cursor: pointer;
  transition: background var(--transition);
  z-index: 2;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lightbox-prev {
  left: 12px;
}

.lightbox-next {
  right: 12px;
}

.lightbox-stage {
  max-width: 900px;
  width: 100%;
  text-align: center;
}

.lightbox-stage img {
  max-height: calc(100vh - 160px);
  width: auto;
  max-width: 100%;
  margin-inline: auto;
  border-radius: var(--radius-md);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

.lightbox-meta {
  margin-top: 16px;
  color: #e2e8f0;
}

.lightbox-caption {
  margin: 0 0 4px;
  font-size: 0.9375rem;
}

.lightbox-counter {
  margin: 0;
  font-size: 0.8125rem;
  color: #94a3b8;
}

@media (min-width: 600px) {
  .lightbox-prev {
    left: 24px;
  }
  .lightbox-next {
    right: 24px;
  }
}