/* PBX Monitor — estilos */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --ok:      #22c55e;
    --fail:    #ef4444;
    --warning: #f59e0b;
    --unknown: #6b7280;
    --bg:      #0f172a;
    --surface: #1e293b;
    --border:  #334155;
    --text:    #e2e8f0;
    --muted:   #94a3b8;
    --accent:  #38bdf8;
    --paused:  #818cf8;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}
header h1 { font-size: 1.4rem; color: var(--accent); }
nav { display: flex; gap: 1rem; }
nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    transition: background 0.15s;
}
nav a:hover, nav a.active {
    background: var(--border);
    color: var(--text);
}
nav .nav-settings { font-size: 0.85rem; opacity: 0.75; }

/* Main */
main { flex: 1; padding: 2rem; max-width: 1100px; margin: 0 auto; width: 100%; }

/* Status cards */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}
.status-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: border-color 0.2s;
}
.status-card.ok      { border-color: var(--ok); }
.status-card.fail    { border-color: var(--fail); }
.status-card.warning { border-color: var(--warning); }
.status-card.unknown { border-color: var(--unknown); }
.status-card.paused  { border-color: var(--paused); }

.status-icon { font-size: 2.5rem; margin-bottom: 0.5rem; }
.status-card h2 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--muted); }
.status-label {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.status-card.ok   .status-label { color: var(--ok); }
.status-card.fail .status-label { color: var(--fail); }
.status-card.warning .status-label { color: var(--warning); }
.status-card.paused .status-label { color: var(--paused); }
.status-detail { font-size: 0.9rem; color: var(--muted); line-height: 1.7; }

/* Stats table */
.stats { background: var(--surface); border-radius: 12px; padding: 1.5rem; }
.stats h2 { margin-bottom: 1rem; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.6rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }
tr:last-child td { border-bottom: none; }

/* History */
.history { background: var(--surface); border-radius: 12px; padding: 1.5rem; }
.history h2 { margin-bottom: 1rem; }
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1rem;
}
.filters label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--muted); }
.filters select, .filters input[type="datetime-local"], .filters button {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    font-size: 0.95rem;
    cursor: pointer;
}
.filters button { background: var(--accent); color: #0f172a; font-weight: 600; border-color: var(--accent); }
.filters input[type="datetime-local"] { color-scheme: dark; }
.filters-clear { font-size: 0.85rem; color: var(--muted); align-self: center; }
.row-maint-pause td:nth-child(2)       { color: var(--paused); }
.row-maint-resume td:nth-child(2),
.row-maint-auto_resume td:nth-child(2) { color: var(--ok); }
.count { font-size: 0.85rem; color: var(--muted); margin-bottom: 0.75rem; }

.history-table { font-size: 0.9rem; }
.history-table th { font-size: 0.8rem; }
.row-ok   { opacity: 0.85; }
.row-fail { background: rgba(239,68,68,0.05); }

/* Utilities */
.ok-text   { color: var(--ok); }
.fail-text { color: var(--fail); }
.error-text { color: var(--fail); font-size: 0.85rem; }

/* Settings */
.settings { background: var(--surface); border-radius: 12px; padding: 1.5rem; }
.settings h2 { margin-bottom: 0.5rem; }
.settings-intro { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.25rem; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem 1.5rem; }
.form-grid label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.9rem; color: var(--muted); }
.form-grid input {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
}
.form-grid small { font-size: 0.78rem; color: var(--muted); }
.inline-check { display: inline-flex !important; flex-direction: row !important; align-items: center; gap: 0.4rem !important; }
.badge { font-weight: 700; }
.form-actions { margin-top: 1.25rem; }
.btn-primary, .btn-secondary {
    border: 1px solid var(--accent);
    border-radius: 6px;
    padding: 0.5rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
}
.btn-primary { background: var(--accent); color: #0f172a; }
.btn-secondary { background: var(--bg); color: var(--accent); }
.btn-secondary:disabled { opacity: 0.45; cursor: not-allowed; }
.test-form { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.test-form small { color: var(--muted); }
.alert-box { border-radius: 8px; padding: 0.75rem 1rem; margin-bottom: 1rem; font-size: 0.9rem; border: 1px solid; }
.alert-box.ok { border-color: var(--ok); background: rgba(34,197,94,0.08); color: var(--ok); }
.alert-box.error { border-color: var(--fail); background: rgba(239,68,68,0.08); color: var(--fail); }
.test-detail { white-space: pre-wrap; font-size: 0.8rem; margin-top: 0.5rem; color: var(--text); font-family: monospace; }
.settings-help { margin-top: 1.5rem; font-size: 0.85rem; color: var(--muted); }
.settings-help summary { cursor: pointer; color: var(--accent); }
.settings-help ol { margin: 0.75rem 0 0 1.25rem; line-height: 1.8; }

/* Footer */
footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 0.75rem 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--muted);
}

/* ===== Modo mantenimiento ===== */
.maint-banner {
    background: #312e81;
    border: 1px solid var(--paused);
    color: #e0e7ff;
    border-radius: 10px;
    padding: 0.9rem 1.2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    font-size: 1.05rem;
}
.maint-banner .maint-inline-form { margin-left: auto; }

.maint-controls {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem 1.2rem;
    margin-bottom: 2.5rem;
}
.maint-controls form {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}
.maint-controls label {
    color: var(--muted);
    font-size: 0.9rem;
    display: flex;
    gap: 0.4rem;
    align-items: center;
}
.maint-controls input[type=text],
.maint-controls select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.35rem 0.5rem;
}
.maint-controls input[type=text] { min-width: 240px; }
.maint-hint { color: var(--muted); font-size: 0.8rem; margin-top: 0.6rem; }

.btn-pause, .btn-resume {
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0.45rem 0.9rem;
    cursor: pointer;
    font-size: 0.95rem;
}
.btn-pause  { background: #b45309; }
.btn-pause:hover  { background: #d97706; }
.btn-resume { background: #15803d; }
.btn-resume:hover { background: #16a34a; }