:root {
  --app-primary: #1d4ed8;
  --app-secondary: #0ea5e9;
  --app-accent: #f97316;
  --app-bg: #f4f7fb;
  --app-surface: #ffffff;
  --app-surface-2: #f8fafc;
  --app-text: #0f172a;
  --app-muted: #64748b;
  --app-border: #e2e8f0;
  --app-success: #16a34a;
  --app-warning: #f59e0b;
  --app-danger: #ef4444;
  --app-font: "Space Grotesk", "Segoe UI", sans-serif;
  --app-serif: "Literata", Georgia, serif;
  --app-radius: 18px;
  --app-shadow: 0 20px 50px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--app-font);
  background: var(--app-bg);
  color: var(--app-text);
  min-height: 100vh;
  position: relative;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition-delay: var(--reveal-delay, 0ms);
}

body.is-loaded .reveal {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

.app-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 15% 15%, rgba(14, 165, 233, 0.18), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(249, 115, 22, 0.12), transparent 40%),
    radial-gradient(circle at 80% 85%, rgba(29, 78, 216, 0.12), transparent 40%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(248, 250, 252, 0.4));
  pointer-events: none;
}

.app-shell {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 270px;
  flex: 0 0 270px;
  background: var(--app-surface);
  border-right: 1px solid var(--app-border);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--app-primary), var(--app-secondary));
  box-shadow: 0 10px 20px rgba(29, 78, 216, 0.3);
}

.brand-title {
  font-family: var(--app-serif);
  font-size: 1.05rem;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--app-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar-search input {
  border-radius: 999px;
  border: 1px solid var(--app-border);
  padding: 0.6rem 1rem;
  background: var(--app-surface-2);
}

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

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.6rem 0.9rem;
  border-radius: 12px;
  color: var(--app-text);
  font-weight: 500;
}

.sidebar-nav .nav-link i {
  font-size: 1.1rem;
}

.sidebar-nav .nav-link.active,
.sidebar-nav .nav-link:hover {
  background: rgba(29, 78, 216, 0.1);
  color: var(--app-primary);
}

.sidebar-nav .nav-link:focus-visible {
  outline: 2px solid var(--app-primary);
  outline-offset: 2px;
}

.sidebar-card {
  padding: 16px;
  border-radius: var(--app-radius);
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.08), rgba(14, 165, 233, 0.08));
  border: 1px solid rgba(29, 78, 216, 0.15);
}

.sidebar-card h6 {
  margin-bottom: 6px;
  font-weight: 600;
}

.btn-icon {
  border-radius: 999px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.topbar {
  padding: 22px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.topbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar-title h1 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
}

.topbar-title span {
  font-size: 0.85rem;
  color: var(--app-muted);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-menu {
  position: relative;
}

.topbar-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  min-width: 280px;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  border-radius: 16px;
  box-shadow: var(--app-shadow);
  display: none;
  z-index: 20;
}

.topbar-menu.open .topbar-dropdown {
  display: flex;
  flex-direction: column;
}

.topbar-dropdown-header,
.topbar-dropdown-footer {
  padding: 12px 16px;
  border-bottom: 1px solid var(--app-border);
}

.topbar-dropdown-footer {
  border-bottom: none;
  border-top: 1px solid var(--app-border);
}

.topbar-dropdown-body {
  display: grid;
  gap: 10px;
  padding: 12px 16px;
  max-height: 260px;
  overflow: auto;
}

.topbar-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  color: var(--app-text);
  text-decoration: none;
  font-weight: 500;
}

.topbar-link i {
  font-size: 1rem;
}

.topbar-link:hover {
  color: var(--app-primary);
}

.lang-toggle {
  min-width: 42px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.page-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.page-toolbar .inline-search {
  flex: 1;
}

.inline-search {
  position: relative;
  flex: 1;
}

.inline-search input {
  padding-left: 2.4rem;
  border-radius: 999px;
  border: 1px solid var(--app-border);
  background: var(--app-surface);
}

.inline-search i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--app-muted);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--app-secondary), var(--app-primary));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.content {
  padding: 0 28px 28px;
}

.app-card {
  background: var(--app-surface);
  border-radius: var(--app-radius);
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
}

.hero-card {
  padding: 24px;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.08), rgba(14, 165, 233, 0.08));
  border: 1px solid rgba(14, 165, 233, 0.2);
}

.hero-card h2 {
  font-family: var(--app-serif);
  font-size: 2rem;
  margin-bottom: 8px;
}

.stat-card {
  padding: 20px;
  border-radius: 16px;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.stat-card .stat-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(29, 78, 216, 0.1);
  color: var(--app-primary);
  font-size: 1.2rem;
}

.stat-card h3 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
}

.stat-card small {
  color: var(--app-muted);
}

.chart-card {
  padding: 20px;
  border-radius: 18px;
  background: var(--app-surface);
  border: 1px solid var(--app-border);
}

.chart-bars {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  align-items: end;
  height: 160px;
  margin-top: 18px;
}

.chart-bars span {
  display: block;
  background: linear-gradient(180deg, var(--app-primary), var(--app-secondary));
  border-radius: 10px 10px 4px 4px;
}

.chart-line {
  width: 100%;
  height: 180px;
  margin-top: 16px;
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(14, 165, 233, 0.12), rgba(14, 165, 233, 0)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='520' height='180' viewBox='0 0 520 180' fill='none'><path d='M0 140 C60 120 110 60 170 70 C230 80 280 130 340 120 C400 110 460 40 520 30' stroke='%230ea5e9' stroke-width='4' fill='none'/><circle cx='170' cy='70' r='6' fill='%230ea5e9'/><circle cx='340' cy='120' r='6' fill='%230ea5e9'/><circle cx='520' cy='30' r='6' fill='%230ea5e9'/></svg>");
  background-repeat: no-repeat;
  background-size: cover;
  border: 1px dashed rgba(14, 165, 233, 0.3);
}

.chart-canvas {
  position: relative;
  height: 180px;
  margin-top: 16px;
}

.table thead th {
  color: var(--app-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.table tbody tr:hover {
  background: var(--app-surface-2);
}

.table-actions {
  display: inline-flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.table-actions .btn {
  white-space: nowrap;
}

.message-item {
  display: block;
  color: inherit;
  text-decoration: none;
}

.message-item:hover {
  color: inherit;
  background: var(--app-surface-2);
  border-color: var(--app-border);
}

.badge-soft {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sidebar-card .badge-soft {
  max-width: 100%;
  flex-wrap: wrap;
  white-space: normal;
}

.sidebar-card .badge-soft span {
  min-width: 0;
}

.badge-soft.success {
  background: rgba(22, 163, 74, 0.12);
  color: var(--app-success);
}

.badge-soft.warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--app-warning);
}

.badge-soft.danger {
  background: rgba(239, 68, 68, 0.12);
  color: var(--app-danger);
}

.app-footer {
  padding: 18px 28px 28px;
  color: var(--app-muted);
  font-size: 0.85rem;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-top: 16px;
}

.calendar-cell {
  min-height: 80px;
  border-radius: 12px;
  border: 1px solid var(--app-border);
  padding: 8px;
  background: var(--app-surface);
  font-size: 0.8rem;
}

.calendar-cell.is-clickable {
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.calendar-cell.is-clickable:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.calendar-cell.is-clickable:focus-visible {
  outline: 2px solid var(--app-primary);
  outline-offset: 2px;
}

.calendar-cell strong {
  display: block;
  margin-bottom: 6px;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 40px 16px;
  position: relative;
  z-index: 1;
}

.auth-card {
  max-width: 460px;
  width: 100%;
  padding: 32px;
  border-radius: var(--app-radius);
  background: var(--app-surface);
  border: 1px solid var(--app-border);
  box-shadow: var(--app-shadow);
}

.auth-card h1 {
  font-family: var(--app-serif);
  margin-bottom: 8px;
}

.sidebar-overlay {
  display: none;
}

@media (max-width: 991px) {
  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    height: 100vh;
    z-index: 5;
    transition: left 0.25s ease;
  }

  body.sidebar-open .sidebar {
    left: 0;
  }

  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 4;
  }

  body.sidebar-open .sidebar-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .topbar-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .inline-search {
    width: 100%;
  }
}

@media (max-width: 575px) {
  .content {
    padding: 0 16px 24px;
  }

  .topbar {
    padding: 18px 18px 12px;
  }
}

:root[data-theme="dark"] .app-backdrop {
  background:
    radial-gradient(circle at 15% 15%, rgba(34, 211, 238, 0.12), transparent 45%),
    radial-gradient(circle at 80% 10%, rgba(249, 115, 22, 0.08), transparent 40%),
    radial-gradient(circle at 80% 85%, rgba(56, 189, 248, 0.1), transparent 40%),
    linear-gradient(135deg, rgba(11, 18, 36, 0.9), rgba(15, 23, 42, 0.6));
}

:root[data-theme="dark"] .sidebar-card {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.14), rgba(34, 211, 238, 0.12));
  border-color: rgba(56, 189, 248, 0.25);
}

:root[data-theme="dark"] .hero-card {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.14), rgba(34, 211, 238, 0.12));
  border-color: rgba(56, 189, 248, 0.25);
}

:root[data-theme="dark"] .stat-card .stat-icon {
  background: rgba(56, 189, 248, 0.16);
  color: var(--app-primary);
}

:root[data-theme="dark"] .form-control,
:root[data-theme="dark"] .form-select {
  background-color: var(--app-surface);
  color: var(--app-text);
  border-color: var(--app-border);
}

:root[data-theme="dark"] .form-control::placeholder {
  color: var(--app-muted);
}

:root[data-theme="dark"] .form-control:focus,
:root[data-theme="dark"] .form-select:focus {
  background-color: var(--app-surface);
  color: var(--app-text);
  border-color: var(--app-primary);
  box-shadow: 0 0 0 0.2rem rgba(56, 189, 248, 0.25);
}

:root[data-theme="dark"] .btn-light {
  background-color: var(--app-surface-2);
  border-color: var(--app-border);
  color: var(--app-text);
}

:root[data-theme="dark"] .calendar-cell {
  background: var(--app-surface);
}

:root[data-theme="dark"] .text-muted,
:root[data-theme="dark"] .text-secondary,
:root[data-theme="dark"] .text-body-secondary {
  color: var(--app-muted) !important;
}

:root[data-theme="dark"] .text-dark,
:root[data-theme="dark"] .text-body {
  color: var(--app-text) !important;
}

:root[data-theme="dark"] body,
:root[data-theme="dark"] .app-main,
:root[data-theme="dark"] .app-card,
:root[data-theme="dark"] .stat-card,
:root[data-theme="dark"] .chart-card,
:root[data-theme="dark"] .sidebar,
:root[data-theme="dark"] .topbar,
:root[data-theme="dark"] .calendar-cell,
:root[data-theme="dark"] .auth-card {
  color: var(--app-text);
}

:root[data-theme="dark"] .table,
:root[data-theme="dark"] .table td,
:root[data-theme="dark"] .table th {
  color: var(--app-text);
}

:root[data-theme="dark"] .btn-outline-secondary,
:root[data-theme="dark"] .btn-outline-primary {
  color: var(--app-text);
  border-color: var(--app-border);
}

:root[data-theme="dark"] .btn-outline-secondary:hover,
:root[data-theme="dark"] .btn-outline-primary:hover {
  color: var(--app-text);
}

.badge-soft.info {
  background: rgba(14, 165, 233, 0.14);
  color: #0369a1;
}

.badge-soft.secondary {
  background: rgba(100, 116, 139, 0.14);
  color: #475569;
}

.landing-body {
  min-height: 100vh;
  background: radial-gradient(circle at 10% 10%, rgba(14, 165, 233, 0.16), transparent 36%),
    radial-gradient(circle at 86% 14%, rgba(249, 115, 22, 0.12), transparent 36%),
    linear-gradient(160deg, #f8fbff 0%, #f2f6ff 48%, #eef4ff 100%);
}

.landing-gradient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 20% 35%, rgba(29, 78, 216, 0.08), transparent 35%),
    radial-gradient(circle at 80% 80%, rgba(14, 165, 233, 0.1), transparent 45%);
}

.landing-header {
  position: relative;
  z-index: 1;
  padding-top: 22px;
  padding-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--app-text);
  text-decoration: none;
}

.landing-brand strong {
  display: block;
  line-height: 1.1;
}

.landing-brand small {
  display: block;
  color: var(--app-muted);
}

.landing-hero {
  position: relative;
  z-index: 1;
  margin-top: 12px;
  padding: 36px;
  border-radius: 28px;
  border: 1px solid rgba(29, 78, 216, 0.15);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(8px);
  box-shadow: 0 28px 70px rgba(30, 64, 175, 0.12);
}

.landing-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid rgba(14, 165, 233, 0.28);
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: #0369a1;
  margin-bottom: 12px;
}

.landing-hero h1 {
  font-family: var(--app-serif);
  font-size: clamp(2rem, 3.5vw, 3.1rem);
  margin-bottom: 14px;
}

.landing-hero p {
  color: var(--app-muted);
  max-width: 60ch;
  margin-bottom: 0;
}

.landing-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.landing-metrics article {
  border: 1px solid rgba(29, 78, 216, 0.14);
  background: #fff;
  border-radius: 16px;
  padding: 14px;
}

.landing-metrics h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.landing-metrics p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--app-muted);
}

.landing-preview ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--app-muted);
}

.landing-preview ul li i {
  color: var(--app-primary);
  margin-top: 2px;
}

.landing-section {
  position: relative;
  z-index: 1;
  margin-top: 24px;
}

.landing-card {
  height: 100%;
  padding: 20px;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(255, 255, 255, 0.86);
}

.landing-card h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.landing-card p {
  margin: 0;
  color: var(--app-muted);
}

.landing-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(148, 163, 184, 0.28);
  padding: 16px 0 22px;
  color: var(--app-muted);
  font-size: 0.9rem;
}

.landing-footer a {
  color: var(--app-primary);
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 991px) {
  .landing-hero {
    padding: 24px;
  }

  .landing-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 575px) {
  .landing-header {
    padding-top: 16px;
  }
}