/* ── PCT Tracker Styles ─────────────────────────────────────────────── */
:root {
    --bg: #0f172a;
    --surface: #1e293b;
    --surface2: #334155;
    --border: #475569;
    --text: #f1f5f9;
    --text-dim: #94a3b8;
    --accent: #22d3ee;
    --accent-hover: #06b6d4;
    --danger: #f43f5e;
    --success: #34d399;
    --trail: #facc15;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Login page */
.login-container {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
}
.login-box {
    background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
    padding: 48px 40px; width: 400px; max-width: 90vw; text-align: center;
    box-shadow: 0 25px 50px rgba(0,0,0,.4);
}
.login-box h1 { font-size: 1.8rem; margin-bottom: 8px; }
.login-box .subtitle { color: var(--text-dim); margin-bottom: 32px; font-size: .95rem; }
.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; margin-bottom: 6px; font-size: .85rem; color: var(--text-dim); }
.form-group input {
    width: 100%; padding: 12px 16px; border-radius: 8px; border: 1px solid var(--border);
    background: var(--bg); color: var(--text); font-size: 1rem; outline: none;
    transition: border-color .2s;
}
.form-group input:focus { border-color: var(--accent); }
.btn {
    padding: 12px 24px; border-radius: 8px; border: none; cursor: pointer;
    font-size: .95rem; font-weight: 600; transition: all .2s;
}
.btn-primary { background: var(--accent); color: var(--bg); width: 100%; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-sm { padding: 8px 16px; font-size: .85rem; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: .85; }
.btn-outline {
    background: transparent; border: 1px solid var(--border); color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.error-msg { color: var(--danger); margin-top: 12px; font-size: .9rem; display: none; }

/* App layout */
.app-container { display: flex; height: 100vh; }
.sidebar {
    width: 460px; min-width: 400px; background: var(--surface); border-right: 1px solid var(--border);
    display: flex; flex-direction: column; overflow: hidden;
}
.sidebar-header {
    padding: 20px 24px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.sidebar-header h2 { font-size: 1.1rem; }
.sidebar-content { flex: 1; overflow-y: auto; padding: 16px; }
.map-area { flex: 1; position: relative; }
#map { width: 100%; height: 100%; }

/* Stats bar */
.stats-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px;
}
.stat-card {
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 14px; text-align: center;
}
.stat-card .value { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.stat-card .label { font-size: .75rem; color: var(--text-dim); margin-top: 4px; }

/* Coordinate list */
.coord-list { list-style: none; }
.coord-item {
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 14px; margin-bottom: 10px; cursor: pointer; transition: border-color .2s;
}
.coord-item:hover { border-color: var(--accent); }
.coord-item .coord-date { font-size: .8rem; color: var(--text-dim); }
.coord-item .coord-pos { font-size: .9rem; margin-top: 4px; font-family: 'Cascadia Code', monospace; }
.coord-item .coord-note { font-size: .85rem; color: var(--trail); margin-top: 6px; }
.coord-item .coord-source {
    display: inline-block; font-size: .7rem; padding: 2px 8px; border-radius: 4px;
    margin-top: 6px; background: var(--surface2); color: var(--text-dim);
}

/* Admin panel */
.admin-section { margin-bottom: 28px; }
.admin-section h3 { font-size: 1rem; margin-bottom: 12px; color: var(--accent); }
.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.admin-grid.three { grid-template-columns: 1fr 1fr 1fr; }
.admin-grid input, .admin-grid select {
    padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
    background: var(--bg); color: var(--text); font-size: .9rem;
}
.admin-grid .full { grid-column: 1 / -1; }

/* User list */
.user-item {
    display: flex; align-items: center; justify-content: space-between;
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 12px 16px; margin-bottom: 8px;
}
.user-item .user-info { flex: 1; }
.user-item .user-name { font-weight: 600; }
.user-item .user-role { font-size: .8rem; color: var(--text-dim); }
.user-item .user-actions { display: flex; gap: 8px; }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.tab {
    flex: 1; padding: 10px; border: 1px solid var(--border); border-radius: 8px;
    background: transparent; color: var(--text-dim); cursor: pointer; font-size: .85rem;
    text-align: center; transition: all .2s;
}
.tab.active { background: var(--accent); color: var(--bg); border-color: var(--accent); font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: block; }
.hidden { display: none; }

/* Toast */
.toast {
    position: fixed; top: 20px; right: 20px; padding: 14px 24px; border-radius: 10px;
    font-size: .9rem; z-index: 10000; transform: translateX(120%); transition: transform .3s;
}
.toast.show { transform: translateX(0); }
.toast.success { background: var(--success); color: var(--bg); }
.toast.error { background: var(--danger); color: #fff; }

/* Responsive */
@media (max-width: 800px) {
    .app-container { flex-direction: column; }
    .sidebar { width: 100%; min-width: 0; height: 45vh; border-right: none; border-bottom: 1px solid var(--border); }
    .map-area { height: 55vh; }
}