:root {
  --bg: #ffffff;
  --text: #212529;
  --muted: #6c757d;
  --card: #ffffff;
  --border: #dee2e6;
  --primary: #0d6efd;
  --primary-strong: #0b5ed7;
  --accent-success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #0dcaf0;
  --soft: #f4f7fa;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 18px 40px rgba(13, 110, 253, 0.14);
  --radius: 8px;
}

.theme-dark {
  --bg: #0f1115;
  --text: #e6e6e6;
  --muted: #a1a1aa;
  --card: #151821;
  --border: #2a2f3a;
  --primary: #4da3ff;
  --primary-strong: #2f8df1;
  --accent-success: #30c173;
  --danger: #ff6b6b;
  --warning: #ffd166;
  --info: #55d6f5;
  --soft: #111722;
  --shadow: 0 6px 16px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 22px 44px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: "Roboto", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(13, 110, 253, 0.28);
  outline-offset: 2px;
}

.app-shell {
  background:
    linear-gradient(180deg, rgba(13, 110, 253, 0.06), transparent 320px),
    var(--bg);
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.25rem;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  border-bottom: 1px solid var(--border);
  width: 100%;
  max-width: 100vw;
}

.theme-dark .app-topbar {
  background: rgba(15, 17, 21, 0.94);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  max-width: 100%;
  color: var(--text);
  text-decoration: none;
}

.brand-lockup > span:last-child {
  min-width: 0;
}

.brand-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  background: var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.brand-title {
  display: block;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.1;
}

.brand-subtitle,
.eyebrow,
.muted-text {
  color: var(--muted);
}

.brand-subtitle {
  display: block;
  font-size: 0.82rem;
}

.topbar-actions,
.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.theme-switch {
  color: var(--muted);
}

.btn {
  border-radius: var(--radius);
  min-height: 40px;
}

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

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

.btn-outline-primary {
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline-danger {
  color: var(--danger);
  border-color: var(--danger);
}

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

.landing-main {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 3rem 1rem 2rem;
}

.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 2rem;
  align-items: center;
  min-height: calc(100vh - 220px);
  min-width: 0;
}

.landing-hero > * {
  min-width: 0;
  max-width: 100%;
}

.hero-copy h1 {
  margin: 0 0 1rem;
  color: var(--text);
  font-size: clamp(2rem, 5vw, 4.5rem);
  line-height: 1;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero-copy p {
  max-width: 640px;
  color: var(--muted);
  font-size: 1.08rem;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.hero-panel {
  padding: 1rem;
  max-width: 100%;
}

.metric-list {
  display: grid;
  gap: 0.75rem;
}

.metric-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem;
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.metric-row strong {
  display: block;
}

.metric-icon,
.module-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--primary);
  background: rgba(13, 110, 253, 0.1);
  border-radius: var(--radius);
}

.feature-grid,
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card,
.module-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 1.1rem;
  color: var(--text);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.feature-card:hover,
.module-card:hover {
  color: var(--text);
  border-color: rgba(13, 110, 253, 0.35);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-card h2,
.feature-card h3,
.module-card h3 {
  margin: 0.75rem 0 0.35rem;
  font-size: 1rem;
}

.feature-card p,
.module-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.login-main {
  display: grid;
  min-height: calc(100vh - 74px);
  place-items: center;
  padding: 2rem 1rem;
}

.login-card {
  width: 340px;
  max-width: 100%;
  padding: 1.5rem;
}

.input-shell {
  position: relative;
}

.input-shell i {
  position: absolute;
  top: 50%;
  left: 0.85rem;
  color: var(--muted);
  transform: translateY(-50%);
}

.input-shell .form-control {
  padding-left: 2.5rem;
}

.form-control,
.form-select {
  min-height: 44px;
  color: var(--text);
  background: var(--card);
  border-color: var(--border);
  border-radius: var(--radius);
}

.form-control:focus,
.form-select:focus {
  color: var(--text);
  background: var(--card);
  border-color: var(--primary);
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.12);
}

.feedback {
  min-height: 1.5rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.text-error {
  color: var(--danger);
}

.text-success {
  color: var(--accent-success);
}

.hub-main {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.page-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-heading h1,
.page-heading h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.1;
}

.toolbar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding: 0.8rem;
}

.searchbox {
  position: relative;
  flex: 1;
  min-width: 220px;
}

.searchbox i {
  position: absolute;
  top: 50%;
  left: 0.9rem;
  color: var(--muted);
  transform: translateY(-50%);
}

.searchbox input {
  padding-left: 2.6rem;
}

.role-chip,
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 32px;
  padding: 0.3rem 0.65rem;
  color: var(--primary);
  background: rgba(13, 110, 253, 0.1);
  border: 1px solid rgba(13, 110, 253, 0.18);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

.module-card {
  gap: 0.7rem;
}

.module-card footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1rem;
  color: var(--muted);
  font-size: 0.84rem;
}

.empty-state {
  padding: 1rem;
  color: var(--muted);
  background: var(--soft);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.app-footer {
  padding: 1.25rem;
  color: #b8bfd2;
  background: #0b0f1a;
  max-width: 100vw;
}

.app-footer a {
  color: #d7e3ff;
}

.toast-stack {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 1080;
  display: grid;
  gap: 0.65rem;
  width: min(360px, calc(100vw - 2rem));
}

.app-toast {
  padding: 0.85rem 1rem;
  color: #fff;
  background: var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.app-toast.error {
  background: var(--danger);
}

.app-toast.success {
  background: var(--accent-success);
}

@media (max-width: 900px) {
  .landing-main {
    max-width: 340px;
  }

  .landing-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-copy .eyebrow {
    display: block;
    max-width: 28ch;
  }

  .hero-copy h1 {
    max-width: 11ch;
    font-size: 2rem;
  }

  .hero-copy p {
    max-width: 34ch;
  }

  .metric-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .metric-row .status-chip {
    grid-column: 2;
    justify-self: start;
  }

  .feature-grid,
  .module-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .app-topbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand-title {
    font-size: 1.05rem;
  }

  .topbar-actions,
  .user-info {
    width: 100%;
    gap: 0.45rem;
    justify-content: space-between;
  }

  .landing-main,
  .hub-main {
    width: 100%;
    max-width: 340px;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    padding-top: 1rem;
  }

  .hero-actions,
  .page-heading,
  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .feature-grid,
  .module-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy .eyebrow {
    display: block;
    max-width: 28ch;
  }

  .hero-copy h1 {
    max-width: 11ch;
    font-size: 2rem;
  }

  .hero-copy p {
    max-width: 34ch;
  }

  .login-card {
    max-width: 340px;
  }

  .login-main {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .metric-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .metric-row .status-chip {
    grid-column: 2;
    justify-self: start;
  }
}

@media (max-width: 360px) {
  .landing-main,
  .hub-main,
  .login-card {
    max-width: 304px;
  }
}