@font-face {
  font-family: 'IBM Plex Sans';
  src: url('/assets/fonts/IBMPlexSans-Variable.ttf') format('truetype');
  font-weight: 100 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --core-accent: #1d4ed8;
  --core-accent-strong: #1e40af;
  --core-ink: #0f172a;
  --core-ink-soft: #1f2937;
  --core-surface: #ffffff;
  --core-surface-alt: #f8fafc;
  --core-muted: #94a3b8;
  --core-border: #e2e8f0;
  --core-success: #22c55e;
  --core-warning: #f59e0b;
  --core-danger: #ef4444;
  --shadow-soft: 0 20px 40px rgba(15, 23, 42, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'IBM Plex Sans', 'Segoe UI', Arial, sans-serif;
  color: var(--core-ink);
  background: radial-gradient(circle at top left, #1e293b 0%, #0b1220 40%, #0f172a 100%);
  min-height: 100vh;
}

.ambient {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(29, 78, 216, 0.25), transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(14, 116, 144, 0.25), transparent 45%),
    radial-gradient(circle at 70% 80%, rgba(30, 64, 175, 0.2), transparent 45%);
  pointer-events: none;
}

.shell {
  position: relative;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  padding: 28px;
}

.sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
  background: rgba(15, 23, 42, 0.92);
  color: #ffffff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: #0b1220;
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-sub {
  color: rgba(226, 232, 240, 0.7);
  font-size: 12px;
}

.tenant-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 16px;
  padding: 16px;
}

.label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: rgba(226, 232, 240, 0.7);
  margin-bottom: 6px;
}

.tenant-value {
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
}

.user-value {
  font-size: 13px;
  color: rgba(226, 232, 240, 0.7);
  margin-top: 6px;
}

.quick-actions {
  display: grid;
  gap: 12px;
}

.button,
.link {
  cursor: pointer;
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 14px;
}

.button {
  background: linear-gradient(135deg, var(--core-accent), var(--core-accent-strong));
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(29, 78, 216, 0.35);
}

.button.ghost {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.45);
  color: #ffffff;
  box-shadow: none;
}

.button.small {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 10px;
}

.link {
  background: none;
  padding: 0;
  color: var(--core-accent);
  text-align: left;
}

.status {
  font-size: 12px;
  color: rgba(226, 232, 240, 0.8);
  line-height: 1.4;
}

.content {
  background: var(--core-surface);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow-soft);
  min-height: 70vh;
}

.panel {
  display: block;
}

.panel.is-hidden {
  display: none;
}

.panel h1 {
  margin: 0 0 8px;
  font-size: 28px;
}

.panel p {
  margin: 0 0 24px;
  color: var(--core-muted);
}

.form {
  display: grid;
  gap: 16px;
  max-width: 420px;
}

.form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  color: var(--core-ink-soft);
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="search"] {
  border-radius: 12px;
  border: 1px solid var(--core-border);
  padding: 12px 14px;
  font-size: 14px;
  background: var(--core-surface-alt);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.panel-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.toolbar {
  margin: 20px 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

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

.meta {
  color: var(--core-muted);
  font-size: 13px;
}

.file-list {
  display: grid;
  gap: 12px;
}

.file-row {
  display: grid;
  grid-template-columns: 56px 1.6fr 120px 140px 120px;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--core-border);
  background: var(--core-surface-alt);
}

.file-thumb {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid rgba(148, 163, 184, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.file-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.file-thumb img.icon {
  object-fit: contain;
  padding: 6px;
}

.file-row.folder {
  background: #eef2ff;
  border-color: rgba(99, 102, 241, 0.35);
}

.file-title {
  font-weight: 600;
}

.file-sub {
  color: var(--core-muted);
  font-size: 12px;
}

.file-row small {
  color: var(--core-muted);
  font-size: 12px;
}

.file-actions {
  display: flex;
  gap: 8px;
}

.file-actions button {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--core-border);
  background: #ffffff;
  font-size: 12px;
}

.file-actions button.danger {
  color: var(--core-danger);
  border-color: rgba(239, 68, 68, 0.3);
}

@media (max-width: 980px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
  }

  .file-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .file-actions {
    justify-content: flex-start;
  }
}