/* Kaspei Admin - custom design system (no CSS framework) */

:root {
  --color-bg: #f4f5f3;
  --color-surface: #ffffff;
  --color-surface-alt: #eef0ec;
  --color-border: #dfe3dc;
  --color-ink: #1b2420;
  --color-ink-soft: #57625a;
  --color-ink-faint: #8a938a;
  --color-primary: #1f3d34;
  --color-primary-soft: #d9e6de;
  --color-accent: #2f6f5e;
  --color-accent-soft: #e2efe9;
  --color-danger: #a3372c;
  --color-danger-soft: #f6e3e0;
  --color-warning: #9a6c1f;
  --color-warning-soft: #f6ebd6;
  --color-success: #2f6f43;
  --color-success-soft: #e1f0e3;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --sidebar-width: 216px;

  --shadow-sm: 0 1px 2px rgba(20, 30, 25, 0.06);
  --shadow-md: 0 4px 16px rgba(20, 30, 25, 0.08);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #12160f;
    --color-surface: #1a201b;
    --color-surface-alt: #212820;
    --color-border: #2c352d;
    --color-ink: #eef1ec;
    --color-ink-soft: #b7c2b8;
    --color-ink-faint: #7c887d;
    --color-primary-soft: #1e3129;
    --color-accent-soft: #1c2e27;
    --color-danger-soft: #3a201c;
    --color-warning-soft: #362a17;
    --color-success-soft: #1c2e21;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
}

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

/* Shell layout: sidebar is fixed and independently scrollable; .main is
   the only region that scrolls with page content. */
html, body { height: 100%; }

/* .sidebar is position:fixed, so it no longer participates in normal
   layout flow - .shell doesn't need to (and must not) reserve grid space
   for it too, or the 240px gets double-counted against .main's own
   margin-left offset below. */
.shell {
  height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-primary);
  color: #f4f5f3;
  padding: var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  overflow-y: auto;
}

.sidebar-brand {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sidebar-brand i {
  color: #7fd6b0;
  font-size: 18px;
}

.sidebar-nav { display: flex; flex-direction: column; gap: var(--space-1); }

.sidebar-nav a {
  color: #d7ded9;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sidebar-nav a i { font-size: 16px; line-height: 1; color: #9fb3a8; }
.sidebar-nav a:hover { background: rgba(255,255,255,0.08); text-decoration: none; }
.sidebar-nav a.active { background: rgba(255,255,255,0.14); color: #ffffff; }
.sidebar-nav a.active i { color: #7fd6b0; }

.sidebar-section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #8ea89b;
  margin: var(--space-3) var(--space-3) 0;
}

.sidebar-footer {
  margin-top: auto;
  font-size: 12.5px;
  color: #a7b6ae;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: var(--space-3);
}

.sidebar-footer a { display: inline-flex; align-items: center; gap: 4px; }

.main {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
  padding: var(--space-5);
  max-width: none;
  height: 100vh;
  overflow-y: auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.topbar h1 {
  font-size: 20px;
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar h1 i { color: var(--color-accent); font-size: 20px; }

.stat-tile .label i,
.panel-header h2 i {
  margin-right: 4px;
  color: var(--color-ink-faint);
}

.topbar-meta { color: var(--color-ink-faint); font-size: 13px; }

/* Cards */
.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-5);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.panel-header h2 { font-size: 15px; margin: 0; font-weight: 700; display: flex; align-items: center; gap: 6px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.stat-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.stat-tile .label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--color-ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.stat-tile .value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stat-tile .sub { font-size: 12px; color: var(--color-ink-soft); margin-top: var(--space-1); }

/* Tables - wrap any <table> in <div class="table-scroll"> so wide tables
   scroll horizontally within their own panel instead of breaking the
   page layout. */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: max-content; }
th {
  text-align: left;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-faint);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-surface-alt); }

/* Pills / badges */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}
.pill-neutral { background: var(--color-surface-alt); color: var(--color-ink-soft); }
.pill-success { background: var(--color-success-soft); color: var(--color-success); }
.pill-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.pill-danger { background: var(--color-danger-soft); color: var(--color-danger); }
.pill-accent { background: var(--color-accent-soft); color: var(--color-accent); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  line-height: 1.2;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: #16281f; text-decoration: none; }
.btn-secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-ink); }
.btn-secondary:hover { background: var(--color-surface-alt); text-decoration: none; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #8a2c22; text-decoration: none; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Forms */
label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: var(--space-1); color: var(--color-ink-soft); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=file], select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-ink);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.field { margin-bottom: var(--space-4); }
.field-error { color: var(--color-danger); font-size: 12px; margin-top: 4px; }
.field-hint { color: var(--color-ink-faint); font-size: 12px; margin-top: 4px; }
.form-row { display: flex; gap: var(--space-4); }
.form-row .field { flex: 1; }

/* Toggle */
.toggle-pill { display: inline-flex; border: 1px solid var(--color-border); border-radius: 999px; overflow: hidden; }
.toggle-pill a { padding: 4px 12px; font-size: 12.5px; font-weight: 600; color: var(--color-ink-soft); }
.toggle-pill a.active { background: var(--color-primary); color: #fff; }

/* Flash messages */
.flash { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); margin-bottom: var(--space-4); font-size: 13.5px; }
.flash-success { background: var(--color-success-soft); color: var(--color-success); }
.flash-error { background: var(--color-danger-soft); color: var(--color-danger); }

/* Login screen */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 20%, #23392f 0%, #131b16 70%);
}
.login-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  width: 360px;
  box-shadow: var(--shadow-md);
}
.login-brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 700; font-size: 20px; margin-bottom: var(--space-1); }
.login-brand i { color: var(--color-accent); }
.login-sub { color: var(--color-ink-faint); font-size: 13px; margin-bottom: var(--space-5); }

/* Pagination */
.pagination { display: flex; gap: var(--space-2); margin-top: var(--space-4); align-items: center; font-size: 13px; }

/* Empty state */
.empty-state { text-align: center; padding: var(--space-7) var(--space-4); color: var(--color-ink-faint); }

/* Feature flag row */
.flag-row { display: flex; align-items: center; justify-content: space-between; padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
.flag-row:last-child { border-bottom: none; }
.flag-key { font-family: var(--font-mono); font-size: 12.5px; color: var(--color-ink-soft); }

.text-faint { color: var(--color-ink-faint); }
.text-mono { font-family: var(--font-mono); font-size: 12.5px; }
.mt-4 { margin-top: var(--space-4); }
.mb-0 { margin-bottom: 0; }