@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ════════════════════════════════════════
   LIGHT MODE  –  azure on stone/cream
   ════════════════════════════════════════ */
:root {
  --accent:         #2969AD;
  --accent-dark:    #1F568F;
  --accent-light:   #EAF3FB;
  --accent-rgb:     41,105,173;

  --success:        #16A34A;
  --success-light:  #F0FDF4;
  --danger:         #DC2626;
  --danger-light:   #FEF2F2;
  --warning:        #2563EB;
  --warning-light:  #EFF6FF;

  --text:           #1C1917;
  --text-muted:     #78716C;
  --border:         #E7E3DE;
  --bg:             #F9F8F6;
  --surface:        #FFFFFF;
  --surface-alt:    #F1EFE9;

  --radius:         6px;
  --radius-lg:      10px;

  --shadow-sm:      0 1px 2px rgba(28,25,23,.06), 0 1px 3px rgba(28,25,23,.04);
  --shadow:         0 4px 16px rgba(28,25,23,.08), 0 1px 3px rgba(28,25,23,.05);
}

/* ════════════════════════════════════════
   DARK MODE  –  azure glow on deep navy
   ════════════════════════════════════════ */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --accent:         #6EA7E1;
    --accent-dark:    #4F8CCA;
    --accent-light:   #0F2740;
    --accent-rgb:     110,167,225;

    --success:        #4ADE80;
    --success-light:  #052E1C;
    --danger:         #FB7185;
    --danger-light:   #2D0F18;
    --warning:        #60A5FA;
    --warning-light:  #0C1A3A;

    --text:           #E2E8FF;
    --text-muted:     #8892C0;
    --border:         #1E2D45;
    --bg:             #0C0E16;
    --surface:        #111928;
    --surface-alt:    #0F1626;

    --shadow-sm:      0 1px 2px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.3);
    --shadow:         0 4px 20px rgba(0,0,0,.5), 0 1px 4px rgba(0,0,0,.4);
  }
}

[data-theme="dark"] {
  --accent:         #6EA7E1;
  --accent-dark:    #4F8CCA;
  --accent-light:   #0F2740;
  --accent-rgb:     110,167,225;

  --success:        #4ADE80;
  --success-light:  #052E1C;
  --danger:         #FB7185;
  --danger-light:   #2D0F18;
  --warning:        #60A5FA;
  --warning-light:  #0C1A3A;

  --text:           #E2E8FF;
  --text-muted:     #8892C0;
  --border:         #1E2D45;
  --bg:             #0C0E16;
  --surface:        #111928;
  --surface-alt:    #0F1626;

  --shadow-sm:      0 1px 2px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.3);
  --shadow:         0 4px 20px rgba(0,0,0,.5), 0 1px 4px rgba(0,0,0,.4);
}

/* Subtle ambient glow in dark mode */
[data-theme="dark"] body {
  background-image: radial-gradient(ellipse 80% 40% at 50% -10%, rgba(41,105,173,.12) 0%, transparent 70%);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body {
    background-image: radial-gradient(ellipse 80% 40% at 50% -10%, rgba(41,105,173,.12) 0%, transparent 70%);
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Typography ── */
h1 { font-size: 1.5rem;    font-weight: 700; letter-spacing: -.025em; color: var(--text); margin-bottom: .5rem; }
h2 { font-size: 1.0625rem; font-weight: 600; letter-spacing: -.01em;  color: var(--text); margin-bottom: .4rem; }
h3 { font-size: .9375rem;  font-weight: 600; color: var(--text); margin-bottom: .3rem; }
p  { color: var(--text-muted); margin-bottom: .5rem; }
ul { list-style: none; padding: 0; }
li { margin: 4px 0; }
code, pre { font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace; }

/* ── Links ── */
a { text-decoration: none; color: var(--accent); }
a:hover { color: var(--accent-dark); }

/* ── Header / Nav ── */
header {
  width: 100%;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 32px;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 8px;
}

[data-theme="dark"] header {
  box-shadow: 0 1px 0 var(--border), 0 4px 16px rgba(0,0,0,.25);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
  margin-right: 16px;
}
.nav-brand:hover { opacity: .85; }
.nav-brand img { height: 40px; width: auto; }

/* Logo swap for light/dark mode */
.logo-light { display: none; }
.logo-dark  { display: block; }
[data-theme="dark"] .logo-light { display: block; }
[data-theme="dark"] .logo-dark  { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light { display: block; }
  :root:not([data-theme="light"]) .logo-dark  { display: none; }
}
.nav-brand-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .02em;
  padding-left: 10px;
  border-left: 1px solid var(--border);
}

.nav-links {
  display: flex;
  align-items: stretch;
  gap: 2px;
  flex: 1;
  height: 100%;
}
.nav-links a {
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: color .12s, border-color .12s;
}
.nav-links a:hover { color: var(--text); border-bottom-color: var(--border); }
.nav-links a.active { color: var(--text); border-bottom-color: var(--accent); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* ── Buttons ── */
button,
input[type="button"],
input[type="submit"],
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  font-size: 13.5px;
  font-weight: 500;
  font-family: inherit;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background .12s, border-color .12s, box-shadow .12s, opacity .12s;
  white-space: nowrap;
  background: var(--accent);
  color: #fff;
  line-height: 1.4;
}
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
.btn:hover {
  background: var(--accent-dark);
  text-decoration: none;
  color: #fff;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), .35);
}
button:active,
input[type="button"]:active,
input[type="submit"]:active,
.btn:active { opacity: .82; }

.btn-danger  { background: var(--danger);  color: #fff; border-color: transparent; }
.btn-danger:hover  { background: #B91C1C; color: #fff; box-shadow: 0 2px 8px rgba(220,38,38,.35); }

.btn-warning { background: var(--warning); color: #fff; border-color: transparent; }
.btn-warning:hover { background: #1D4ED8; color: #fff; box-shadow: 0 2px 8px rgba(37,99,235,.35); }
[data-theme="dark"] .btn-warning { color: #0C0E16; }
[data-theme="dark"] .btn-warning:hover { background: #3B82F6; color: #0C0E16; }

.btn-secondary { background: var(--text-muted); color: #fff; border-color: transparent; }
.btn-secondary:hover { background: var(--text); color: var(--bg); }

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover { background: var(--surface-alt); border-color: var(--text-muted); color: var(--text); }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover { background: var(--surface-alt); color: var(--text); }

.btn-sm { padding: 5px 11px; font-size: 12.5px; }
.btn-lg { padding: 10px 20px; font-size: 15px; }

/* ── Forms ── */
form { display: flex; flex-direction: column; width: 100%; }

label {
  display: block;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 5px;
  font-size: 13px;
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="file"],
textarea,
select {
  width: 100%;
  padding: 8px 11px;
  font-size: 13.5px;
  font-family: inherit;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color .12s, box-shadow .12s;
  outline: none;
}
input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
input[type="file"]:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .12);
}
input[type="file"] { padding: 6px 11px; cursor: pointer; }
textarea { resize: vertical; min-height: 88px; }

.form-group { margin-bottom: 16px; }

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 16px;
}
.card-body p { margin: 6px 0; font-size: 14px; color: var(--text); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
}
.badge-success   { background: var(--success-light); color: var(--success); }
.badge-danger    { background: var(--danger-light);  color: var(--danger); }
.badge-warning   { background: var(--warning-light); color: var(--warning); }
.badge-primary   { background: var(--accent-light);  color: var(--accent); }
.badge-secondary { background: var(--surface-alt);   color: var(--text-muted); }

/* ── Alerts ── */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 10px;
  font-size: 13.5px;
  border: 1px solid transparent;
}
.alert-success { background: var(--success-light); color: var(--success);  border-color: color-mix(in srgb, var(--success) 30%, transparent); }
.alert-error   { background: var(--danger-light);  color: var(--danger);   border-color: color-mix(in srgb, var(--danger)  30%, transparent); }
.alert-warning { background: var(--warning-light); color: var(--warning);  border-color: color-mix(in srgb, var(--warning) 30%, transparent); }
.alert-info    { background: var(--accent-light);  color: var(--accent);   border-color: color-mix(in srgb, var(--accent)  30%, transparent); }

/* ── Messages list (Django framework) ── */
.messages { list-style: none; padding: 0; margin-bottom: 16px; }
.messages li {
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 6px;
  border: 1px solid transparent;
  font-size: 13.5px;
}
.messages li.success { background: var(--success-light); color: var(--success); border-color: color-mix(in srgb, var(--success) 30%, transparent); }
.messages li.error   { background: var(--danger-light);  color: var(--danger);  border-color: color-mix(in srgb, var(--danger)  30%, transparent); }
.messages li.warning { background: var(--warning-light); color: var(--warning); border-color: color-mix(in srgb, var(--warning) 30%, transparent); }
.messages li.info    { background: var(--accent-light);  color: var(--accent);  border-color: color-mix(in srgb, var(--accent)  30%, transparent); }

/* ── Danger zone block ── */
.danger-block {
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  background: var(--danger-light);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.danger-block h3 { color: var(--danger); margin-bottom: 2px; }
.danger-block p  { color: var(--danger); opacity: .75; margin-bottom: 0; }

/* ── Main layout ── */
main { width: 100%; flex: 1; display: flex; flex-direction: column; }

.page-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 32px;
}

.page-header { margin-bottom: 24px; }

/* ── Footer ── */
footer {
  width: 100%;
  text-align: center;
  padding: 16px 32px;
  color: var(--text-muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* ── Auth layout ── */
.auth-wrapper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  flex: 1;
  padding: 40px 16px;
}
.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 36px 40px;
  width: 100%;
  max-width: 420px;
}
.auth-card h1 { font-size: 1.375rem; margin-bottom: 4px; }
.auth-card .subtitle { color: var(--text-muted); margin-bottom: 24px; font-size: 13.5px; }
.auth-card .form-group { margin-bottom: 16px; }
.auth-card button,
.auth-card input[type="submit"],
.auth-card .btn { width: 100%; padding: 9px; margin-top: 4px; justify-content: center; }
.auth-card .auth-footer { margin-top: 20px; text-align: center; font-size: 13px; color: var(--text-muted); }

/* ── Divider ── */
.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* ── Radio / Checkbox groups ── */
.radio-group { display: flex; flex-direction: column; gap: 8px; margin: 8px 0; }
.radio-group label { display: flex; align-items: center; gap: 10px; font-weight: 400; cursor: pointer; }
.radio-group input[type="radio"],
.radio-group input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; }

.radio-option { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.radio-option input[type="radio"] { width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; }
.radio-option label { font-weight: 400; margin: 0; cursor: pointer; }

.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; }
.checkbox-row label { font-weight: 400; margin: 0; cursor: pointer; }

/* ── Back link ── */
.back-link { font-size: 13px; color: var(--text-muted); }
.back-link:hover { color: var(--text); }

/* ── Errorlist ── */
.errorlist { margin-top: 4px; }
.errorlist li { color: var(--danger); font-size: 12.5px; }

/* ════════════════════════════════════════
   STAT CARDS
   ════════════════════════════════════════ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: .5;
}
.stat-card .stat-label {
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.stat-card .stat-value {
  font-size: 2.125rem;
  font-weight: 700;
  letter-spacing: -.04em;
  color: var(--text);
  line-height: 1;
}
.stat-card .stat-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}
.stat-card.stat-accent .stat-value { color: var(--accent); }
.stat-card.stat-success .stat-value { color: var(--success); }
.stat-card.stat-danger  .stat-value { color: var(--danger); }
.stat-card.stat-warning .stat-value { color: var(--warning); }
.stat-card.stat-accent::before { opacity: 1; }

/* ════════════════════════════════════════
   ACTIVITY FEED (LOG DASHBOARD)
   ════════════════════════════════════════ */
.activity-feed { display: flex; flex-direction: column; }
.activity-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.activity-item:last-child { border-bottom: none; }
.activity-item.hidden { display: none; }

.activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
  background: var(--border);
}
.activity-dot.dot-antrag   { background: var(--accent); }
.activity-dot.dot-user     { background: var(--success); }
.activity-dot.dot-response { background: var(--warning); }
.activity-dot.dot-decision { background: var(--danger); }

.activity-body { flex: 1; min-width: 0; }
.activity-body .activity-text { font-size: 13.5px; color: var(--text); margin: 0; line-height: 1.5; }
.activity-body .activity-text strong { font-weight: 600; }
.activity-body .activity-meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.activity-time { font-size: 12px; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; padding-top: 4px; }

/* Log toolbar */
.log-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
}
.log-search {
  flex: 1;
  min-width: 160px;
  max-width: 280px;
  margin: 0;
}
.filter-group {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.filter-btn {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  padding: 4px 11px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 20px;
  cursor: pointer;
  transition: background .12s, border-color .12s, color .12s;
}
.filter-btn:hover { color: var(--text); border-color: var(--text-muted); background: var(--surface-alt); box-shadow: none; }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.log-count {
  font-size: 12px;
  color: var(--text-muted);
  margin-left: auto;
  white-space: nowrap;
}

/* ════════════════════════════════════════
   ANALYTICS CHARTS
   ════════════════════════════════════════ */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.analytics-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.analytics-card-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border);
}
.analytics-card-header h3 { margin: 0; font-size: 14px; font-weight: 600; }
.analytics-card-header p  { margin: 2px 0 0; font-size: 12px; color: var(--text-muted); }
.analytics-card-body { padding: 16px 20px; }

/* Horizontal bar chart */
.bar-chart { display: flex; flex-direction: column; gap: 10px; }
.bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.bar-row-label {
  width: 64px;
  font-size: 12.5px;
  color: var(--text-muted);
  text-align: right;
  flex-shrink: 0;
}
.bar-track {
  flex: 1;
  height: 8px;
  background: var(--surface-alt);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--accent);
  transition: width .6s cubic-bezier(.16,1,.3,1);
  min-width: 2px;
}
.bar-fill-success { background: var(--success); }
.bar-fill-danger  { background: var(--danger); }
.bar-fill-warning { background: var(--warning); }
.bar-fill-muted   { background: var(--border); }
.bar-row-value {
  width: 28px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  text-align: right;
  flex-shrink: 0;
}

/* Vertical bar chart (monthly trend) */
.month-chart-wrap {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  height: 100px;
  padding-bottom: 24px;
  position: relative;
}
.month-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  position: relative;
}
.month-bar {
  width: 100%;
  background: var(--accent);
  border-radius: 3px 3px 0 0;
  min-height: 2px;
  opacity: .85;
  transition: opacity .12s;
}
.month-col:hover .month-bar { opacity: 1; }
.month-label {
  position: absolute;
  bottom: 0;
  font-size: 10px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* KPI ring (pure CSS donut) */
.kpi-ring-wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.kpi-ring {
  position: relative;
  width: 80px;
  height: 80px;
  flex-shrink: 0;
}
.kpi-ring svg { transform: rotate(-90deg); }
.kpi-ring .ring-bg    { fill: none; stroke: var(--surface-alt); stroke-width: 8; }
.kpi-ring .ring-fill  { fill: none; stroke: var(--accent);      stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset .8s cubic-bezier(.16,1,.3,1); }
.kpi-ring .ring-fill-success { stroke: var(--success); }
.kpi-ring .ring-fill-danger  { stroke: var(--danger); }
.kpi-ring-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
}
.kpi-legend { display: flex; flex-direction: column; gap: 8px; }
.kpi-legend-item { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.kpi-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ── Theme toggle button ── */
.theme-toggle {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  padding: 5px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .12s, border-color .12s, color .12s;
  flex-shrink: 0;
}
.theme-toggle:hover { background: var(--surface-alt); color: var(--text); border-color: var(--text-muted); box-shadow: none; }
.theme-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

[data-theme="dark"]  .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }

/* ── Dark: table overrides ── */
[data-theme="dark"] .user-table thead tr      { background: #0F1626; }
[data-theme="dark"] .user-table tbody tr:hover { background: #16203A; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .user-table thead tr      { background: #0F1626; }
  :root:not([data-theme="light"]) .user-table tbody tr:hover { background: #16203A; }
}

/* ── Helpers ── */
.text-muted  { color: var(--text-muted); }
.text-danger { color: var(--danger); font-size: 12.5px; }
.text-sm     { font-size: 13px; }
.fw-500      { font-weight: 500; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }

/* ════════════════════════════════════════
   RESPONSIVE SYSTEM
   md = 768px (tablet)   sm = 480px (phone)
   ════════════════════════════════════════ */

/* ── Hamburger button (hidden on desktop) ── */
.nav-hamburger {
  display: none;
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  padding: 5px 8px;
  border-radius: var(--radius);
  cursor: pointer;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  transition: background .12s, border-color .12s, color .12s;
}
.nav-hamburger:hover { background: var(--surface-alt); color: var(--text); border-color: var(--text-muted); box-shadow: none; }
.nav-hamburger svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; display: block; }

/* Mobile-only nav extras (logout link inside dropdown) */
.nav-mobile-only { display: none; }
/* Desktop-only nav items (hidden inside mobile dropdown) */
.nav-desktop-only { display: block; }

/* ── md breakpoint: tablet (≤ 768px) ── */
@media (max-width: 768px) {
  /* Header */
  header { padding: 0 16px; gap: 6px; }

  /* Show hamburger */
  .nav-hamburger { display: inline-flex; }

  /* Nav links → off-screen drawer that drops down */
  .nav-links {
    display: none;
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 32px rgba(0,0,0,.14);
    flex-direction: column;
    height: auto;
    padding: 6px 0 12px;
    z-index: 300;
  }
  .nav-links.is-open { display: flex; }

  .nav-links a {
    padding: 13px 20px;
    border-bottom: none;
    border-left: 3px solid transparent;
    font-size: 14px;
    height: auto;
  }
  .nav-links a:hover { border-bottom-color: transparent; border-left-color: var(--border); background: var(--surface-alt); }
  .nav-links a.active { border-bottom-color: transparent; border-left-color: var(--accent); background: var(--accent-light); color: var(--accent); }

  /* Mobile extras inside dropdown */
  .nav-mobile-only { display: block; border-top: 1px solid var(--border); margin-top: 6px; padding: 8px 16px 0; }
  .nav-desktop-only { display: none; }

  /* Page padding */
  .page-container { padding: 20px 16px; }

  /* Auth */
  .auth-card { padding: 28px 20px; }

  /* Stats: 2-col on tablet */
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 16px; }

  /* Analytics: single column */
  .analytics-grid { grid-template-columns: 1fr; }

  /* Log toolbar */
  .log-toolbar { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
  .log-search { max-width: 100%; min-width: 0; flex: 1 1 160px; }
  .filter-group { flex-wrap: wrap; }
  .log-count { margin-left: 0; }

  /* Activity time: move below on narrow */
  .activity-item { gap: 10px; }
  .activity-time { font-size: 11px; }
}

/* ── sm breakpoint: phone (≤ 480px) ── */
@media (max-width: 480px) {
  header { padding: 0 12px; }
  .nav-brand img { height: 32px; }
  .nav-actions { gap: 5px; }

  .page-container { padding: 16px 12px; }
  .auth-card { padding: 24px 16px; }

  /* Stats: 1-col on phone */
  .stats-grid { grid-template-columns: 1fr; gap: 10px; }

  /* KPI ring wrap: stack vertically */
  .kpi-ring-wrap { flex-direction: column; align-items: flex-start; gap: 12px; }

  /* Bar chart label: narrower */
  .bar-row-label { width: 50px; font-size: 11.5px; }
  .bar-row-value { width: 24px; }

  /* Card padding: reduce */
  .card { padding: 16px; }

  /* Danger block */
  .danger-block { padding: 14px 16px; }
}