:root {
  --bg: #0b0f14;
  --surface: #121821;
  --surface-alt: #17202c;
  --surface-muted: #0f151f;
  --primary: #3a7ca5;
  --primary-hover: #4f91bb;
  --primary-active: #2f6b8e;
  --primary-soft: #1c2e3a;
  --text: #e6edf3;
  --text-secondary: #9aa7b2;
  --text-disabled: #5b6b78;
  --success: #22a06b;
  --warning: #f59e0b;
  --error: #dc4c64;
  --info: #38bdf8;
  --border: #223041;
  --ring: rgba(56, 189, 248, 0.45);
  --bg-gradient-start: #152234;
  --bg-gradient-end: #0b0f14;
  --radius: 10px;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --header-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  color-scheme: dark;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f7fb;
    --surface: #ffffff;
    --surface-alt: #f4f8fc;
    --surface-muted: #eef3f8;
    --primary: #2f6b8e;
    --primary-hover: #3a7ca5;
    --primary-active: #255875;
    --primary-soft: #d9e8f3;
    --text: #12202d;
    --text-secondary: #485d6d;
    --text-disabled: #708495;
    --success: #188d5b;
    --warning: #c88409;
    --error: #c13751;
    --info: #1c92c8;
    --border: #cfdbe7;
    --ring: rgba(28, 146, 200, 0.28);
    --bg-gradient-start: #f8fbff;
    --bg-gradient-end: #ecf3fa;
    --shadow: 0 10px 26px rgba(20, 45, 66, 0.09);
    --header-shadow: 0 6px 18px rgba(20, 45, 66, 0.08);
    color-scheme: light;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top right, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 50%);
  color: var(--text);
  line-height: 1.45;
}

a {
  color: var(--info);
  text-decoration-color: color-mix(in srgb, var(--info) 55%, transparent);
}

a:hover {
  text-decoration-color: var(--info);
}

.text-secondary {
  color: var(--text-secondary);
}

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  padding: 0.9rem 1.35rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: var(--header-shadow);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  max-width: 1320px;
  margin: 0 auto;
}

.brand-block {
  display: grid;
  gap: 0.1rem;
}

.brand-title {
  color: var(--text);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  padding: 0.38rem 0.72rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.92rem;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover {
  color: var(--text);
  border-color: var(--border);
  background: color-mix(in srgb, var(--primary-soft) 48%, transparent);
}

.nav-link.is-active {
  color: var(--text);
  border-color: color-mix(in srgb, var(--primary) 48%, var(--border));
  background: color-mix(in srgb, var(--primary-soft) 75%, transparent);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.context-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.24rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8rem;
  background: color-mix(in srgb, var(--surface-alt) 70%, transparent);
}

.logout-form {
  margin: 0;
}

.container {
  max-width: 1320px;
  margin: 1.3rem auto 2rem;
  padding: 0 1rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card h2,
.card h3 {
  margin-top: 0;
}

.auth-card {
  max-width: 420px;
}

.auth-shell {
  display: grid;
  grid-template-columns: minmax(0, 480px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.auth-panel {
  max-width: 100%;
}

.auth-title {
  margin-bottom: 0.2rem;
}

.auth-info {
  background: color-mix(in srgb, var(--surface-alt) 72%, var(--surface));
}

.auth-info ul {
  margin: 0.6rem 0 0;
  padding-left: 1.2rem;
  color: var(--text-secondary);
}

.auth-info li {
  margin-bottom: 0.45rem;
}

.form-grid {
  display: grid;
  gap: 0.75rem;
}

.filters-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  align-items: end;
}

.top-gap {
  margin-top: 1rem;
}

.error-box,
.success-box {
  border: 1px solid var(--border);
  padding: 0.85rem;
  margin-top: 1rem;
  border-radius: 8px;
}

.error-box {
  border-color: color-mix(in srgb, var(--error) 55%, var(--border));
  background: color-mix(in srgb, var(--error) 15%, transparent);
}

.success-box {
  border-color: color-mix(in srgb, var(--success) 55%, var(--border));
  background: color-mix(in srgb, var(--success) 12%, transparent);
}

.selection-box {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.85rem;
  background: rgba(12, 18, 26, 0.6);
}

.selection-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.muted-note {
  color: var(--text-secondary);
  margin: 0.2rem 0 0.4rem;
  font-size: 0.95rem;
}
.selected-files-list {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

.selected-files-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}

.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.inline-check input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.dropzone {
  border: 2px dashed var(--primary);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(58, 124, 165, 0.2), rgba(58, 124, 165, 0.07));
  padding: 1.2rem;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.dropzone:hover,
.dropzone:focus {
  border-color: var(--primary-hover);
  background: linear-gradient(145deg, rgba(58, 124, 165, 0.28), rgba(58, 124, 165, 0.1));
  outline: none;
}

.dropzone.drag-over {
  border-color: var(--info);
  background: color-mix(in srgb, var(--info) 18%, var(--primary-soft));
  transform: translateY(-1px);
}

.dropzone-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
}

.dropzone-subtitle {
  margin: 0.2rem 0;
  color: var(--text-secondary);
}

.dropzone-hint {
  margin: 0.2rem 0 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

input,
button,
select,
textarea {
  font-size: 0.98rem;
  padding: 0.58rem 0.78rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
.button-secondary:focus-visible,
.nav-link:focus-visible,
.dropzone:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

label {
  color: var(--text-secondary);
  font-size: 0.92rem;
}

input::placeholder {
  color: var(--text-disabled);
}

button,
.button-secondary {
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button {
  background: var(--primary);
  color: var(--text);
}

button:hover {
  background: var(--primary-hover);
}

button:active {
  background: var(--primary-active);
}

.button-secondary {
  background: var(--primary-soft);
  color: var(--text);
  padding: 0.58rem 0.78rem;
  border-radius: 8px;
  border-color: var(--border);
}

.button-secondary:hover {
  background: color-mix(in srgb, var(--primary-soft) 75%, var(--primary));
}

.button-danger {
  background: color-mix(in srgb, var(--error) 85%, var(--surface));
  color: #fff;
  border-color: color-mix(in srgb, var(--error) 65%, var(--border));
}

.button-danger:hover {
  background: color-mix(in srgb, var(--error) 92%, var(--surface));
}

.file-remove {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0.2rem 0.45rem;
  font-size: 0.82rem;
}

.file-remove:hover {
  color: var(--text);
  border-color: var(--info);
}

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

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
  background: color-mix(in srgb, var(--surface-alt) 70%, transparent);
}

th,
td {
  text-align: left;
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--text-secondary);
  font-weight: 600;
  white-space: nowrap;
}

tbody tr:hover {
  background: color-mix(in srgb, var(--primary-soft) 42%, transparent);
}

.uploads-table .col-file {
  min-width: 260px;
  max-width: 380px;
  overflow-wrap: anywhere;
}

.users-table td {
  min-width: 120px;
}

.inline-form {
  display: grid;
  gap: 0.45rem;
}

.inline-form input,
.inline-form select,
.inline-form button {
  min-width: 160px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid transparent;
  white-space: nowrap;
}

.status-success {
  background: color-mix(in srgb, var(--success) 20%, transparent);
  color: var(--success);
  border-color: color-mix(in srgb, var(--success) 50%, transparent);
}

.status-warning {
  background: color-mix(in srgb, var(--warning) 22%, transparent);
  color: var(--warning);
  border-color: color-mix(in srgb, var(--warning) 55%, transparent);
}

.status-error {
  background: color-mix(in srgb, var(--error) 20%, transparent);
  color: var(--error);
  border-color: color-mix(in srgb, var(--error) 55%, transparent);
}

.status-info {
  background: color-mix(in srgb, var(--info) 18%, transparent);
  color: var(--info);
  border-color: color-mix(in srgb, var(--info) 45%, transparent);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.pagination-summary {
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  gap: 0.5rem;
}

.pagination-controls form {
  margin: 0;
}

.dashboard-hero-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.8rem;
}

.dashboard-kpi-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.kpi-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem;
  background: rgba(14, 20, 29, 0.7);
}

.kpi-label {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.kpi-value {
  margin: 0.4rem 0 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.status-segment-bar {
  width: 100%;
  height: 14px;
  border-radius: 999px;
  overflow: hidden;
  display: flex;
  border: 1px solid var(--border);
  background: rgba(12, 17, 24, 0.8);
}

.status-segment {
  height: 100%;
}

.segment-success {
  background: var(--success);
}

.segment-warning {
  background: var(--warning);
}

.segment-error {
  background: var(--error);
}

.status-segment-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
}

.status-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.dashboard-activity-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.activity-table-wrapper table,
.activity-table {
  min-width: 740px;
}

@media (max-width: 960px) {
  .header {
    padding: 0.8rem 0.9rem;
  }

  .header-inner {
    align-items: flex-start;
  }

  .header-main {
    width: 100%;
    justify-content: flex-start;
  }

  .main-nav {
    width: 100%;
  }

  .header-meta {
    width: 100%;
  }

  .container {
    padding: 0 0.6rem;
  }

  .auth-shell {
    grid-template-columns: 1fr;
  }

  .filters-grid {
    grid-template-columns: 1fr;
  }

  table {
    min-width: 860px;
  }

  .dashboard-activity-grid {
    grid-template-columns: 1fr;
  }
}