/* =============================================================
   Monitora Manaus — Folha de Estilos Global
   ============================================================= */

/* ─── Variáveis / Tema escuro (água) ───────────────────────── */
:root {
    --bg-body:          #080e1c;
    --bg-main:          #0d1629;
    --bg-card:          #111f38;
    --bg-card-hover:    #162646;
    --border:           #1e3a5f;
    --border-light:     #254a73;

    --text-primary:     #e8f0fe;
    --text-secondary:   #8da9c7;
    --text-muted:       #4d6a87;

    --accent:           #00c8f0;
    --accent-dark:      #0096b8;

    --color-normal:     #22c55e;
    --color-atencao:    #f59e0b;
    --color-alerta:     #ef4444;
    --color-emergencia: #a855f7;

    --color-normal-bg:     rgba(34, 197, 94,  0.12);
    --color-atencao-bg:    rgba(245, 158, 11, 0.12);
    --color-alerta-bg:     rgba(239, 68, 68,  0.12);
    --color-emergencia-bg: rgba(168, 85, 247, 0.12);

    --radius-sm: 8px;
    --radius:    12px;
    --radius-lg: 18px;
    --shadow:    0 4px 24px rgba(0,0,0,0.5);
    --shadow-sm: 0 2px 12px rgba(0,0,0,0.35);

    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --transition: 0.3s ease;
}

/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

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

/* ─── Container ─────────────────────────────────────────────── */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ─── Header ────────────────────────────────────────────────── */
.site-header {
    background: linear-gradient(135deg, #04091a 0%, #0a1930 100%);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 20px rgba(0,0,0,0.6);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-top: 14px;
    padding-bottom: 14px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-icon { font-size: 1.7rem; }

.logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    background: linear-gradient(135deg, #00c8f0, #0077b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.3px;
}

.main-nav {
    display: flex;
    gap: 4px;
    margin-left: auto;
}

.main-nav a {
    color: var(--text-secondary);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    background: rgba(0, 180, 216, 0.15);
    color: var(--accent);
    text-decoration: none;
}

.header-time {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-variant-numeric: tabular-nums;
    flex-shrink: 0;
}

/* ─── Alerta Banner ─────────────────────────────────────────── */
.alert-banner {
    width: 100%;
    padding: 10px 0;
    font-weight: 600;
    font-size: 0.9rem;
    transition: background var(--transition), color var(--transition);
}

.alert-banner .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.alert-update { font-size: 0.8rem; font-weight: 400; opacity: 0.8; }

/* Variantes do banner */
.alert-banner.alert-normal     { background: rgba(34, 197, 94,  0.18); color: #4ade80; border-bottom: 2px solid rgba(34,197,94,0.4); }
.alert-banner.alert-atencao    { background: rgba(245, 158, 11, 0.20); color: #fbbf24; border-bottom: 2px solid rgba(245,158,11,0.4); }
.alert-banner.alert-alerta     { background: rgba(239, 68, 68,  0.22); color: #f87171; border-bottom: 2px solid rgba(239,68,68,0.4); }
.alert-banner.alert-emergencia { background: rgba(168, 85, 247, 0.25); color: #c084fc; border-bottom: 2px solid rgba(168,85,247,0.5); animation: pulse-emergencia 1.8s ease-in-out infinite; }

@keyframes pulse-emergencia {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.75; }
}

/* ─── Main Content ──────────────────────────────────────────── */
.main-content { padding: 32px 20px 48px; }

/* ─── Section ───────────────────────────────────────────────── */
.section { margin-bottom: 40px; }

.section-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-icon { font-size: 1.15rem; }

/* ─── Sensors Grid ──────────────────────────────────────────── */
.sensors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

/* ─── Sensor Card ───────────────────────────────────────────── */
.sensor-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    position: relative;
    overflow: hidden;
}

.sensor-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.sensor-card.alert-normal::before     { background: var(--color-normal); }
.sensor-card.alert-atencao::before    { background: var(--color-atencao); }
.sensor-card.alert-alerta::before     { background: var(--color-alerta); }
.sensor-card.alert-emergencia::before { background: var(--color-emergencia); }

.sensor-card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

/* Card header */
.sensor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
}

.sensor-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.sensor-status {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 99px;
    white-space: nowrap;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sensor-status.alert-normal     { background: var(--color-normal-bg);    color: var(--color-normal); }
.sensor-status.alert-atencao    { background: var(--color-atencao-bg);   color: var(--color-atencao); }
.sensor-status.alert-alerta     { background: var(--color-alerta-bg);    color: var(--color-alerta); }
.sensor-status.alert-emergencia { background: var(--color-emergencia-bg);color: var(--color-emergencia); }

/* Sensor body: gauge + metrics */
.sensor-body {
    display: flex;
    gap: 20px;
    align-items: center;
}

/* ─── Gauge (Indicador de Nível Vertical) ───────────────────── */
.river-gauge {
    position: relative;
    width: 54px;
    height: 130px;
    background: rgba(0,0,0,0.35);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
}

.river-gauge-fill {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    transition: height 1s cubic-bezier(.4,0,.2,1),
                background 0.5s ease;
}

.river-gauge-fill.alert-normal     { background: linear-gradient(0deg, #14532d, #22c55e); }
.river-gauge-fill.alert-atencao    { background: linear-gradient(0deg, #78350f, #f59e0b); }
.river-gauge-fill.alert-alerta     { background: linear-gradient(0deg, #7f1d1d, #ef4444); }
.river-gauge-fill.alert-emergencia { background: linear-gradient(0deg, #4c1d95, #a855f7); }

.river-gauge-label {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.73rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,0.9);
    z-index: 2;
    white-space: nowrap;
}

/* Marcas laterais de limiar */
.river-gauge-marks {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 8px;
    pointer-events: none;
}

.gauge-mark {
    position: absolute;
    right: 0;
    width: 100%;
    height: 2px;
    border-radius: 1px;
}

.gauge-mark.mark-atencao    { bottom: 60%; background: rgba(245,158,11,0.9); }
.gauge-mark.mark-alerta     { bottom: 75%; background: rgba(239,68,68,0.9); }
.gauge-mark.mark-emergencia { bottom: 90%; background: rgba(168,85,247,0.9); }

/* Sensor metrics */
.sensor-metrics {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.metric-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
}

.metric-icon { font-size: 1.3rem; flex-shrink: 0; }

.metric-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.metric-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 1px;
}

/* Sensor footer */
.sensor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

.sensor-loc,
.sensor-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 50%;
}

/* ─── Chart Section ─────────────────────────────────────────── */
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.chart-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.select-input {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 8px 14px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color var(--transition);
}

.select-input:hover,
.select-input:focus { border-color: var(--accent); outline: none; }

.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    height: 280px;
}

.mt-16 { margin-top: 16px; }

/* ─── Legend Grid ───────────────────────────────────────────── */
.legend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
}

.legend-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    text-align: center;
}

.legend-card.alert-normal  { border-top: 3px solid var(--color-normal); }
.legend-card.alert-atencao { border-top: 3px solid var(--color-atencao); }
.legend-card.alert-alerta  { border-top: 3px solid var(--color-alerta); }
.legend-card.alert-emergencia { border-top: 3px solid var(--color-emergencia); }

.legend-pct {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 4px;
}

.legend-card.alert-normal     .legend-pct { color: var(--color-normal); }
.legend-card.alert-atencao    .legend-pct { color: var(--color-atencao); }
.legend-card.alert-alerta     .legend-pct { color: var(--color-alerta); }
.legend-card.alert-emergencia .legend-pct { color: var(--color-emergencia); }

.legend-label { font-size: 0.9rem; font-weight: 700; margin-bottom: 6px; }
.legend-desc  { font-size: 0.78rem; color: var(--text-muted); }

/* ─── No Data Card ──────────────────────────────────────────── */
.no-data-card {
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    color: var(--text-muted);
    grid-column: 1 / -1;
}

.no-data-card a { color: var(--accent); }

/* ─── Weather Card ──────────────────────────────────────────── */
.weather-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Condição principal */
.weather-main {
    display: flex;
    align-items: center;
    gap: 20px;
}

.weather-emoji { font-size: 3.5rem; line-height: 1; flex-shrink: 0; }

.weather-temp {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.weather-desc {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 4px;
}

.weather-sensacao {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Métricas */
.weather-metrics {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.weather-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    flex: 1;
    min-width: 90px;
    text-align: center;
}

.wm-icon { font-size: 1.4rem; }
.wm-val  { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); font-variant-numeric: tabular-nums; }
.wm-lbl  { font-size: 0.7rem; color: var(--text-muted); }

/* Previsão 3 dias */
.weather-forecast {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.forecast-day {
    flex: 1;
    min-width: 100px;
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.fc-dia   { font-size: 0.8rem; font-weight: 700; color: var(--text-secondary); text-transform: capitalize; }
.fc-chuva { font-size: 0.75rem; color: #60a5fa; }
.fc-temp  { display: flex; justify-content: center; gap: 8px; font-size: 0.88rem; font-weight: 700; }
.fc-max   { color: #f87171; }
.fc-min   { color: #93c5fd; }

/* Footer da fonte */
.weather-footer {
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

.weather-footer a { color: var(--accent); }

@media (max-width: 600px) {
    .weather-main  { flex-direction: column; text-align: center; }
    .weather-emoji { font-size: 2.8rem; }
    .weather-temp  { font-size: 2.2rem; }
}

/* ─── Footer ────────────────────────────────────────────────── */
.site-footer {
    background: #040810;
    border-top: 1px solid var(--border);
    padding: 24px 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-sub { font-size: 0.76rem; margin-top: 4px; opacity: 0.7; }

/* ─── History Page ──────────────────────────────────────────── */
.filter-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 24px;
}

.filter-form {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label { font-size: 0.8rem; color: var(--text-secondary); font-weight: 600; }

.form-input {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 8px 12px;
    font-size: 0.88rem;
    min-width: 150px;
}

.form-input:focus { border-color: var(--accent); outline: none; }

.btn-primary {
    background: linear-gradient(135deg, #0077b6, #00b4d8);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 9px 22px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity var(--transition);
}

.btn-primary:hover { opacity: 0.88; }

.btn-export {
    background: rgba(0,196,240,0.08);
    color: var(--accent);
    border: 1px solid rgba(0,196,240,0.3);
    border-radius: var(--radius-sm);
    padding: 8px 18px;
    font-size: 0.84rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-export:hover { background: rgba(0,196,240,0.15); text-decoration: none; }

/* Stats row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.stat-label { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

/* Table */
.table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow-x: auto;
}

.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }

.data-table th {
    background: rgba(0,0,0,0.3);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 12px 16px;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 10px 16px;
    border-bottom: 1px solid rgba(30,58,95,0.5);
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.data-table tr:last-child td { border-bottom: none; }

.data-table tr:hover td { background: rgba(255,255,255,0.03); }

/* Badges */
.badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 99px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.badge-normal     { background: var(--color-normal-bg);    color: var(--color-normal); }
.badge-atencao    { background: var(--color-atencao-bg);   color: var(--color-atencao); }
.badge-alerta     { background: var(--color-alerta-bg);    color: var(--color-alerta); }
.badge-emergencia { background: var(--color-emergencia-bg);color: var(--color-emergencia); }

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.page-link {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    padding: 7px 14px;
    font-size: 0.85rem;
    text-decoration: none;
    transition: border-color var(--transition), color var(--transition);
}

.page-link:hover      { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.page-link.active     { background: var(--accent); border-color: var(--accent); color: #fff; }
.page-link.disabled   { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* ─── Responsive ─────────────────────────────────────────────  */
@media (max-width: 768px) {
    .header-inner { flex-wrap: wrap; gap: 10px; }
    .main-nav a   { padding: 7px 12px; font-size: 0.85rem; }
    .header-time  { display: none; }
    .chart-header { flex-direction: column; align-items: flex-start; }
    .filter-form  { flex-direction: column; }
    .sensors-grid { grid-template-columns: 1fr; }
    .legend-grid  { grid-template-columns: repeat(2, 1fr); }
    .stats-row    { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .logo-text      { font-size: 1.1rem; }
    .main-content   { padding: 20px 16px 40px; }
    .legend-grid    { grid-template-columns: 1fr; }
}