/* ============================================
   Site Monitor — Dark Infographic Dashboard
   Deep black, vivid data, flat, dense.
   ============================================ */

:root {
    --bg: #0A0A0F;
    --panel: #0F0F15;
    --panel-light: #141419;
    --border: #1A1A22;
    --text: #FFFFFF;
    --text-muted: #7A7A8A;
    --text-dim: #444455;
    --red: #E8330A;
    --red-light: #F04E23;
    --orange: #F97316;
    --gold: #F5C518;
    --gold-light: #FFD700;
    --teal: #0D9488;
    --teal-light: #14B8A6;
    --teal-bright: #2DD4BF;
    --teal-dim: #0F766E;
    --green: #10B981;
    --radius: 2px;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ---- Header ---- */

header {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1.2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header h1 {
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

header h1 .icon { color: var(--teal-light); }

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.interval-info {
    color: var(--text-dim);
    font-size: 0.6rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ---- Buttons ---- */

.btn {
    padding: 0.35rem 0.65rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: background 0.1s;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    text-decoration: none;
    color: inherit;
}

.btn-primary {
    background: var(--red);
    color: white;
    width: 100%;
    padding: 0.65rem;
    font-size: 0.8rem;
    justify-content: center;
}

.btn-primary:hover { background: var(--red-light); }

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.6rem;
    background: var(--teal-dim);
    color: white;
}

.btn-sm:hover { background: var(--teal); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
}

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

/* ---- Main ---- */

main {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0.8rem 1.2rem;
}

/* ---- Summary Bar ---- */

.summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-bottom: 0.8rem;
}

.summary-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.6rem 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.summary-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.summary-icon svg { width: 16px; height: 16px; }

.summary-card.total .summary-icon { background: rgba(13,148,136,0.2); color: var(--teal-bright); }
.summary-card.ok .summary-icon { background: rgba(16,185,129,0.2); color: var(--green); }
.summary-card.warn .summary-icon { background: rgba(245,197,24,0.2); color: var(--gold); }
.summary-card.crit .summary-icon { background: rgba(232,51,10,0.2); color: var(--red); }

.summary-text { display: flex; flex-direction: column; }

.summary-number {
    font-size: 1.3rem;
    font-weight: 800;
    line-height: 1;
}

.summary-label {
    font-size: 0.55rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    margin-top: 0.1rem;
}

.summary-card.total .summary-number { color: var(--teal-bright); }
.summary-card.ok .summary-number { color: var(--green); }
.summary-card.warn .summary-number { color: var(--gold); }
.summary-card.crit .summary-number { color: var(--red); }

/* ============================================
   COMPACT CARDS — 3 columns, dark, dense
   ============================================ */

.cards-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.site-card-link {
    text-decoration: none;
    color: inherit;
}

.compact-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.7rem 0.8rem;
    transition: all 0.15s;
    position: relative;
}

.compact-card:hover {
    border-color: #1A3A3A;
    background: var(--panel-light);
}

/* Card header: name + uptime gauge */
.cc-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.cc-left {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
    flex: 1;
}

.cc-name {
    font-weight: 800;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--orange);
}

.cc-url-small {
    font-size: 0.55rem;
    color: var(--text-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

/* Donut gauge */
.cc-gauge {
    flex-shrink: 0;
    position: relative;
    width: 48px;
    height: 48px;
}

.cc-gauge canvas {
    width: 48px !important;
    height: 48px !important;
}

.cc-gauge-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.6rem;
    font-weight: 800;
    color: var(--text);
}

/* Histogram */
.cc-chart {
    height: 110px;
    margin: 0 -0.2rem 0.4rem;
}

/* Metrics */
.cc-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.2rem;
    padding: 0.4rem 0;
    border-top: 1px solid var(--border);
}

.cc-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.05rem;
}

.cc-metric-value {
    font-size: 1.1rem;
    font-weight: 800;
    line-height: 1;
}

.cc-metric-value small {
    font-size: 0.5rem;
    font-weight: 600;
    color: var(--text-dim);
}

.cc-metric-value.val-red { color: var(--red); }
.cc-metric-value.val-gold { color: var(--gold); }
.cc-metric-value.val-green { color: var(--green); }
.cc-metric-value.val-blue { color: var(--teal-bright); text-shadow: 0 0 8px rgba(45,212,191,0.3); }
.cc-metric-value.val-orange { color: var(--orange); }

.cc-metric-label {
    font-size: 0.45rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
}

/* ---- Status dots & badges ---- */

.status-badge {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius);
    font-size: 0.55rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.status-badge.ok { background: rgba(16,185,129,0.2); color: var(--green); }
.status-badge.warn { background: rgba(245,197,24,0.2); color: var(--gold); }
.status-badge.critical { background: rgba(232,51,10,0.2); color: var(--red); }
.status-badge.error { background: rgba(232,51,10,0.2); color: var(--red); }

/* ---- Checks list ---- */

.checks-list {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.5rem;
    border-radius: var(--radius);
    font-size: 0.75rem;
}

.check-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.check-indicator.ok { background: var(--green); }
.check-indicator.warn { background: var(--gold); }
.check-indicator.critical { background: var(--red); }
.check-indicator.error { background: var(--red); }

.check-name {
    font-weight: 700;
    min-width: 120px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text);
}

.check-message {
    color: var(--text-muted);
    font-size: 0.65rem;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
}

.profile-tag {
    font-size: 0.55rem;
    font-weight: 800;
    color: var(--orange);
    background: rgba(249,115,22,0.15);
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.last-check {
    font-size: 0.6rem;
    color: var(--text-dim);
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-dim);
}

/* ---- Login ---- */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    width: 100%;
    max-width: 340px;
}

.login-card h1 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.login-card .subtitle {
    color: var(--text-dim);
    font-size: 0.75rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
}

.form-group { margin-bottom: 0.7rem; }

.form-group label {
    display: block;
    font-size: 0.6rem;
    color: var(--text-dim);
    margin-bottom: 0.2rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.form-group input {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    font-size: 0.85rem;
    outline: none;
}

.form-group input:focus { border-color: var(--red); }

.form-group select {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text);
    font-size: 0.85rem;
    outline: none;
}

.alert {
    padding: 0.5rem 0.7rem;
    border-radius: var(--radius);
    font-size: 0.75rem;
    margin-bottom: 0.7rem;
    font-weight: 700;
}

.alert-error { background: rgba(232,51,10,0.15); color: var(--red-light); border: 1px solid rgba(232,51,10,0.3); }
.alert-success { background: rgba(16,185,129,0.15); color: var(--green); border: 1px solid rgba(16,185,129,0.3); }
.alert:not(.alert-error):not(.alert-success) { display: none; }

/* ---- Sites management ---- */

.form-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 0.6rem;
}

.form-card h2 {
    font-size: 0.75rem;
    margin-bottom: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 800;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.7rem;
}

.advanced-section {
    margin-top: 0.7rem;
    padding: 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.advanced-section summary {
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.advanced-section[open] summary { margin-bottom: 0.7rem; }

/* ---- Table ---- */

.sites-table {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

table { width: 100%; border-collapse: collapse; }
thead { background: rgba(255,255,255,0.02); }

th {
    text-align: left;
    padding: 0.5rem 0.7rem;
    font-size: 0.55rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 800;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 0.5rem 0.7rem;
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border);
}

tr:last-child td { border-bottom: none; }
tr:hover { background: rgba(255,255,255,0.02); }

.btn-danger { background: var(--red); color: white; }
.btn-danger:hover { background: var(--red-light); }

/* ---- Site detail page ---- */

.back-link {
    color: var(--text-dim);
    text-decoration: none;
    margin-right: 0.3rem;
}

.back-link:hover { color: var(--text); }

.detail-summary {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
}

.detail-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.detail-status { display: flex; flex-direction: column; gap: 0.3rem; }

.status-badge.big {
    font-size: 0.8rem;
    padding: 0.3rem 0.7rem;
    width: fit-content;
}

.detail-url {
    color: var(--text-muted);
    font-size: 0.75rem;
    word-break: break-all;
}

.uptime-card { text-align: center; }

.uptime-big {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.15rem;
}

.score-good, .uptime-big.score-good { color: var(--green); }
.score-ok, .uptime-big.score-ok { color: var(--gold); }
.score-bad, .uptime-big.score-bad { color: var(--red); }

.uptime-label {
    font-size: 0.55rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 800;
}

.detail-meta { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.3rem; }
.detail-meta strong { color: var(--text); }

.detail-section {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.8rem;
    margin-bottom: 0.5rem;
}

.detail-section h2 {
    font-size: 0.65rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 800;
    color: var(--text-muted);
}

.detail-checks .check-row { padding: 0.4rem 0.5rem; }
.detail-checks .check-name { min-width: 150px; }

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.chart-container {
    position: relative;
    height: 220px;
}

.uptime-timeline {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
}

.timeline-dot {
    width: 8px;
    height: 8px;
    border-radius: 1px;
}

.timeline-dot:hover { outline: 1px solid var(--text); }
.timeline-dot.ok { background: var(--green); }
.timeline-dot.warn { background: var(--gold); }
.timeline-dot.critical { background: var(--red); }
.timeline-dot.error { background: var(--red); }

/* ---- Responsive ---- */

@media (max-width: 1200px) { .cards-3col { grid-template-columns: repeat(2, 1fr); } }

@media (max-width: 768px) {
    .summary { grid-template-columns: repeat(2, 1fr); }
    .cards-3col { grid-template-columns: 1fr; }
    .header-content { flex-direction: column; gap: 0.5rem; }
    .detail-summary { grid-template-columns: 1fr; }
    .charts-grid { grid-template-columns: 1fr; }
    main { padding: 0.5rem; }
}