/* CloudSix / VideoCloud — main stylesheet */
:root {
  --color-snow: #f8fafc;
  --color-ice: #e0f2fe;
  --color-sky: #0ea5e9;
  --color-deep: #0f172a;
  --color-graphite: #1e293b;
  --color-slate: #334155;
  --color-muted: #64748b;
  --color-accent: #38bdf8;
  --color-accent-hover: #0ea5e9;
  --color-white: #ffffff;
  --color-border: rgba(148, 163, 184, 0.25);
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --nav-height: 72px;
  --transition: 0.2s ease;
}

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

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 {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-deep);
  background: var(--color-snow);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-sky);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-accent-hover); }

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--color-deep);
  color: var(--color-white);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 16px;
}

/* Header / Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(248, 250, 252, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 12px rgba(15, 23, 42, 0.04);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-deep);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.logo img, .logo svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}
.logo:hover { color: var(--color-deep); }

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-desktop a,
.nav-desktop button {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-slate);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), color var(--transition);
}
.nav-desktop a:hover,
.nav-desktop button:hover,
.nav-desktop a[aria-current="page"] {
  background: var(--color-ice);
  color: var(--color-deep);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-deep);
}
.nav-toggle svg { width: 24px; height: 24px; }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-snow);
  padding: 24px;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
  overflow-y: auto;
}
.nav-mobile.open { display: flex; }
.nav-mobile a,
.nav-mobile button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-deep);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
}
.nav-mobile a:hover,
.nav-mobile button:hover {
  background: var(--color-ice);
}

.lang-switch {
  margin-left: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-muted);
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
}
.lang-switch:hover {
  background: var(--color-ice);
  color: var(--color-deep);
}

/* Main */
main {
  flex: 1;
  padding-top: var(--nav-height);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-graphite) center/cover no-repeat;
  color: var(--color-white);
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,23,42,0.45) 0%, rgba(15,23,42,0.7) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding: 48px 24px;
}
.hero .motto {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero p {
  font-size: 1.125rem;
  opacity: 0.92;
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--color-sky);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
}
.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  color: var(--color-white);
}
.btn-outline {
  background: transparent;
  color: var(--color-deep);
  border-color: var(--color-border);
}
.btn-outline:hover {
  background: var(--color-ice);
  border-color: var(--color-sky);
}

/* Sections */
.section {
  padding: 64px 0;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--color-deep);
}
.section-lead {
  color: var(--color-muted);
  max-width: 560px;
  margin-bottom: 40px;
}

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.card-img {
  aspect-ratio: 16/10;
  object-fit: cover;
  width: 100%;
  background: var(--color-ice);
}
.card-body {
  padding: 20px;
}
.card-body h3 {
  font-size: 1.125rem;
  font-weight: 650;
  margin-bottom: 8px;
}
.card-body p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-bottom: 0;
}
.card-meta {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 8px;
}

/* Theme cards */
.theme-card {
  text-align: center;
  padding: 28px 20px;
}
.theme-card .icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  color: var(--color-sky);
}
.theme-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 6px;
}

/* Stats strip */
.stats-strip {
  background: var(--color-graphite);
  color: var(--color-white);
  padding: 48px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  text-align: center;
}
.stat-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}
.stat-label {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-top: 4px;
}

/* Publications */
.pub-card .card-body h3 {
  font-size: 1rem;
}
.pub-card .region {
  color: var(--color-sky);
  font-weight: 500;
}

/* Page content */
.page-hero {
  background: linear-gradient(135deg, var(--color-graphite) 0%, #1e3a5f 100%);
  color: var(--color-white);
  padding: 64px 0 48px;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 12px;
}
.page-hero p {
  opacity: 0.85;
  max-width: 520px;
  margin: 0 auto;
}

.content-block {
  padding: 48px 0 64px;
}
.content-block h2 {
  font-size: 1.375rem;
  margin: 32px 0 12px;
}
.content-block h2:first-child { margin-top: 0; }
.content-block p {
  margin-bottom: 16px;
  max-width: 68ch;
}
.content-block ul, .content-block ol {
  margin: 0 0 20px 1.25em;
  max-width: 68ch;
}
.content-block li { margin-bottom: 8px; }

/* Rules list */
.rules-list {
  counter-reset: rule;
  list-style: none;
  margin-left: 0;
  max-width: 720px;
}
.rules-list li {
  counter-increment: rule;
  position: relative;
  padding-left: 48px;
  margin-bottom: 18px;
  line-height: 1.55;
}
.rules-list li::before {
  content: counter(rule);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  background: var(--color-ice);
  color: var(--color-sky);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info dt {
  font-weight: 600;
  margin-top: 16px;
  color: var(--color-slate);
}
.contact-info dd {
  color: var(--color-muted);
  margin-left: 0;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.875rem;
  margin-bottom: 6px;
  color: var(--color-slate);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-sky);
  outline: none;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-note {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: 12px;
}

/* Footer */
.site-footer {
  background: var(--color-graphite);
  color: #cbd5e1;
  padding: 48px 0 32px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}
.footer-brand {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-white);
  margin-bottom: 8px;
}
.footer-brand a { color: var(--color-white); }
.site-footer p {
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 320px;
}
.footer-nav h4 {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94a3b8;
  margin-bottom: 12px;
}
.footer-nav ul {
  list-style: none;
}
.footer-nav a {
  display: block;
  color: #cbd5e1;
  font-size: 0.9375rem;
  padding: 4px 0;
}
.footer-nav a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(148,163,184,0.15);
  padding-top: 24px;
  font-size: 0.8125rem;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  color: #94a3b8;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(12px);
  transition: transform 0.2s;
}
.modal-overlay.open .modal {
  transform: translateY(0);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}
.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
}
.modal-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--color-muted);
  font-size: 1.5rem;
  line-height: 1;
}
.modal-close:hover {
  background: var(--color-ice);
  color: var(--color-deep);
}
.modal-body {
  padding: 20px 24px 28px;
}
.modal-message {
  display: none;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--color-ice);
  color: var(--color-deep);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}
.modal-message.show { display: block; }
.modal-message.error {
  background: #fef2f2;
  color: #991b1b;
}

/* Dashboard specific */
.dashboard-page {
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
}
.dashboard-page .site-header {
  background: rgba(15, 23, 42, 0.9);
  border-bottom-color: rgba(148,163,184,0.12);
}
.dashboard-page .logo { color: #f8fafc; }
.dashboard-page .nav-desktop a,
.dashboard-page .nav-desktop button {
  color: #94a3b8;
}
.dashboard-page .nav-desktop a:hover,
.dashboard-page .nav-desktop button:hover {
  background: rgba(56,189,248,0.1);
  color: #e2e8f0;
}
.dashboard-page .lang-switch {
  border-color: rgba(148,163,184,0.25);
  color: #94a3b8;
}

.dash-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}
.dash-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}
.dash-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #f8fafc;
}
.dash-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(56,189,248,0.15);
  color: #38bdf8;
  margin-left: 12px;
  vertical-align: middle;
}
.dash-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.dash-controls .btn {
  background: rgba(56,189,248,0.12);
  color: #38bdf8;
  border: 1px solid rgba(56,189,248,0.3);
  padding: 8px 16px;
  font-size: 0.875rem;
}
.dash-controls .btn:hover {
  background: rgba(56,189,248,0.22);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.kpi-card {
  background: #1e293b;
  border: 1px solid rgba(148,163,184,0.12);
  border-radius: var(--radius);
  padding: 20px;
}
.kpi-card .label {
  font-size: 0.8125rem;
  color: #94a3b8;
  margin-bottom: 8px;
}
.kpi-card .value {
  font-size: 1.75rem;
  font-weight: 700;
  color: #f8fafc;
  letter-spacing: -0.02em;
}
.kpi-card .sub {
  font-size: 0.75rem;
  color: #64748b;
  margin-top: 6px;
}

.dash-panels {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}
@media (max-width: 900px) {
  .dash-panels { grid-template-columns: 1fr; }
}
.panel {
  background: #1e293b;
  border: 1px solid rgba(148,163,184,0.12);
  border-radius: var(--radius);
  padding: 20px;
}
.panel h2 {
  font-size: 1rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 16px;
}
.chart-wrap {
  position: relative;
  height: 220px;
}
.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

.progress-bar {
  height: 10px;
  background: #0f172a;
  border-radius: 999px;
  overflow: hidden;
  margin: 12px 0 6px;
}
.progress-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #0ea5e9, #38bdf8);
  border-radius: 999px;
  transition: width 0.6s ease;
}

.process-list {
  list-style: none;
}
.process-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(148,163,184,0.08);
  font-size: 0.875rem;
}
.process-list li:last-child { border-bottom: none; }
.process-status {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}
.process-status.running { background: rgba(34,197,94,0.15); color: #4ade80; }
.process-status.idle { background: rgba(148,163,184,0.12); color: #94a3b8; }
.process-status.queue { background: rgba(251,191,36,0.15); color: #fbbf24; }

.events-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.events-table th,
.events-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(148,163,184,0.08);
}
.events-table th {
  color: #94a3b8;
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.events-table td { color: #cbd5e1; }
.event-type {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}
.event-type.upload { background: rgba(56,189,248,0.15); color: #38bdf8; }
.event-type.index { background: rgba(168,85,247,0.15); color: #c084fc; }
.event-type.thumb { background: rgba(34,197,94,0.15); color: #4ade80; }
.event-type.mod { background: rgba(251,191,36,0.15); color: #fbbf24; }

.heatmap {
  display: grid;
  grid-template-columns: auto repeat(24, 1fr);
  gap: 3px;
  font-size: 0.625rem;
}
.heatmap .day-label {
  display: flex;
  align-items: center;
  color: #64748b;
  padding-right: 6px;
}
.heatmap .cell {
  aspect-ratio: 1;
  border-radius: 2px;
  background: #0f172a;
  min-width: 0;
}
.heatmap .cell[data-level="1"] { background: rgba(14,165,233,0.2); }
.heatmap .cell[data-level="2"] { background: rgba(14,165,233,0.4); }
.heatmap .cell[data-level="3"] { background: rgba(14,165,233,0.65); }
.heatmap .cell[data-level="4"] { background: rgba(14,165,233,0.9); }

.dash-note {
  font-size: 0.8125rem;
  color: #64748b;
  margin-top: 24px;
  padding: 12px 16px;
  background: rgba(148,163,184,0.06);
  border-radius: var(--radius-sm);
  border-left: 3px solid #38bdf8;
}

/* 404 */
.error-page {
  text-align: center;
  padding: 100px 24px;
}
.error-page h1 {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-sky);
  margin-bottom: 8px;
}
.error-page p {
  color: var(--color-muted);
  margin-bottom: 28px;
}

/* Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Responsive */
@media (max-width: 900px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .lang-switch { display: none; }
}

@media (max-width: 600px) {
  .hero { min-height: 70vh; }
  .section { padding: 48px 0; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
}