/* Light is the default (matches the app's original look) so nobody's UI
   changes until they opt into dark mode via the theme toggle - see
   web/js/theme-toggle.js. [data-theme] is set on <html> by a small inline
   script at the top of <head>, before this stylesheet loads, to avoid a
   flash of the wrong theme. */
:root, :root[data-theme="light"] {
    --bg: #f5f5f5;
    --bg-elevated: #333333;
    --bg-card: #ffffff;
    --border: #dddddd;
    --text: #333333;
    --text-muted: #666666;
    --accent: #667eea;
    --accent-hover: #5568d3;
    --success: #33cc33;
    --error: #cc3333;
    --warning: #f0ad4e;
    --chip-bg: #eef0ff;
    --chip-border: #c7cdfa;
    --radius: 10px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

:root[data-theme="dark"] {
    --bg: #0f1115;
    --bg-elevated: #171a21;
    --bg-card: #1c2029;
    --border: #2a2f3a;
    --text: #e8eaed;
    --text-muted: #9aa2b1;
    --accent: #4f8cff;
    --accent-hover: #6ea0ff;
    --success: #3ecf8e;
    --error: #ef5b5b;
    --warning: #f0b429;
    --chip-bg: #2a2f4a;
    --chip-border: #3d4470;
    --radius: 10px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

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

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 28px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; }
.brand-logo-morph {
    display: inline-block;
    width: 140px;
    height: 40px;
}
.brand:hover { opacity: 0.9; }

.topnav { display: flex; align-items: center; gap: 20px; font-size: 0.95rem; }
/* Fixed light color, NOT var(--text) - .topbar's background (--bg-elevated)
   is deliberately dark in BOTH themes (a dark navbar even in light mode),
   but --text flips per theme. In light theme --text is #333333, identical
   to --bg-elevated there too, making every non-active nav link invisible
   (confirmed live 2026-08-12). --accent stays var()-driven since it's
   legible against a dark background in both themes already. */
.topnav a { color: #e8eaed; }
.topnav a:hover { color: var(--accent-hover); }
.topnav a.active { color: var(--accent); font-weight: 600; }
.user-chip {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 5px 12px;
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.logout-link { color: var(--text-muted); cursor: pointer; }
.logout-link:hover { color: var(--error); }

.content { flex: 1; padding: 32px 28px; max-width: 1200px; width: 100%; margin: 0 auto; }

.flash {
    margin: 0 28px;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
}
.flash-error { background: rgba(239,91,91,0.12); color: var(--error); border: 1px solid rgba(239,91,91,0.3); }
.flash-success { background: rgba(62,207,142,0.12); color: var(--success); border: 1px solid rgba(62,207,142,0.3); }

h1 { font-size: 1.6rem; margin: 0 0 6px; }
h2 { font-size: 1.2rem; margin: 0 0 14px; }
.subtitle { color: var(--text-muted); margin: 0 0 28px; font-size: 0.95rem; }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.station-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color 0.15s ease;
}
.station-card:hover { border-color: var(--accent); }
.station-card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.role-badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(79,140,255,0.15);
    color: var(--accent);
    margin-top: 8px;
}
.role-badge.admin { background: rgba(240,180,41,0.15); color: var(--warning); }

form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row > * { flex: 1; min-width: 180px; }

label { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 6px; display: block; }

input[type="text"], input[type="password"], input[type="datetime-local"], input[type="email"], select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }

button, .btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    cursor: pointer;
    font-weight: 600;
    display: inline-block;
    text-align: center;
}
button:hover, .btn:hover { background: var(--accent-hover); color: white; }
button:disabled, .btn:disabled { opacity: 0.6; cursor: default; }
.btn-secondary { background: var(--bg-card); border: 1px solid var(--border); color: var(--text); }
.btn-secondary:hover { background: var(--bg-elevated); }
.btn-danger { background: var(--error); }
.btn-danger:hover { background: #ff7373; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }

.stat-row { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 24px; }
.stat-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 24px;
    min-width: 160px;
}
.stat-box .value { font-size: 1.8rem; font-weight: 700; }
.stat-box .label { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }

.login-wrap {
    max-width: 420px;
    margin: 80px auto;
    text-align: center;
}
.login-logo-morph {
    display: block;
    width: 100%;
    aspect-ratio: 1366 / 746;
    margin-bottom: 8px;
}
.login-wrap .card { text-align: left; }
.login-wrap h1 { text-align: center; }
.login-wrap .subtitle { text-align: center; }
.login-wrap .flash { margin: 0 0 16px; text-align: left; }

.live-dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--success);
    margin-right: 6px;
    animation: pulse 1.5s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.now-playing {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 6px;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
}

.empty-state { color: var(--text-muted); text-align: center; padding: 40px 20px; }

.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}
.tab {
    padding: 10px 16px;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: 0.9rem;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }