/* Temperium — feuille de style partagée (dark theme) */

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

:root {
    --bg: #0a0e17;
    --surface: #111827;
    --surface-2: #1a2234;
    --border: #1e2d45;
    --border-strong: #2d4263;
    --text: #e2e8f0;
    --text-dim: #7a8ba5;
    --text-faint: #4a5b75;
    --accent: #00d4ff;
    --accent-hover: #00b8de;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --cold: #38bdf8;
    --ok: #34d399;
    --warm: #fbbf24;
    --hot: #f87171;
    --danger: #ef4444;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

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

/* ── Header ───────────────────────────────────────────────── */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 32px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}
.header h1 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
}
.header h1 a { color: var(--text); text-decoration: none; }
.header h1 span { color: var(--accent); }
.header-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 0.9rem;
}
.header-nav a {
    color: var(--text-dim);
    text-decoration: none;
}
.header-nav a:hover { color: var(--accent); }
.header-nav a.active { color: var(--accent); }
.header-nav .email {
    color: var(--text-faint);
    font-size: 0.85rem;
}
.pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ok);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
    margin-right: 6px;
}
@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

/* ── Layout ───────────────────────────────────────────────── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 24px;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 18px;
}
.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ── Sensor cards ─────────────────────────────────────────── */
.sensors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
    margin-bottom: 32px;
}
.sensor-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    transition: border-color 0.2s, transform 0.15s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}
.sensor-card:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
    text-decoration: none;
}
.sensor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}
.sensor-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}
.sensor-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 10px;
    border-radius: 20px;
    white-space: nowrap;
}
.badge-cold    { background: rgba(56, 189, 248, 0.15);  color: var(--cold); }
.badge-ok      { background: rgba(52, 211, 153, 0.15); color: var(--ok); }
.badge-warm    { background: rgba(251, 191, 36, 0.15); color: var(--warm); }
.badge-hot     { background: rgba(248, 113, 113, 0.15); color: var(--hot); }
.badge-silent  { background: rgba(248, 113, 113, 0.15); color: var(--hot); }
.badge-unknown { background: rgba(122, 139, 165, 0.15); color: var(--text-dim); }
.badge-pending { background: rgba(0, 212, 255, 0.15); color: var(--accent); }

.sensor-temp {
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 8px;
}
.sensor-temp small {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--text-dim);
}
.sensor-temp.empty { color: var(--text-faint); font-size: 1.4rem; }

.sensor-meta {
    font-size: 0.8rem;
    color: var(--text-dim);
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
}

/* ── Forms ────────────────────────────────────────────────── */
.form-card {
    max-width: 420px;
    margin: 60px auto 0;
    padding: 36px 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 6px;
    text-align: center;
}
.form-title span { color: var(--accent); }
.form-subtitle {
    font-size: 0.9rem;
    color: var(--text-dim);
    text-align: center;
    margin-bottom: 28px;
}

label.field {
    display: block;
    margin-bottom: 16px;
}
label.field > span {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
input[type=email],
input[type=password],
input[type=text],
input[type=number],
select,
textarea {
    width: 100%;
    padding: 11px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    color: var(--text);
    font: inherit;
    transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
input[type=checkbox] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    vertical-align: middle;
}

button, .btn {
    display: inline-block;
    padding: 11px 22px;
    border: none;
    border-radius: var(--radius-sm);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}
.btn-primary {
    background: var(--accent);
    color: var(--bg);
}
.btn-primary:hover {
    background: var(--accent-hover);
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.btn-secondary {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border-strong);
}
.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}
.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}
.btn-danger:hover {
    background: var(--danger);
    color: white;
}
.btn-block {
    width: 100%;
}

/* ── Alerts / messages ────────────────────────────────────── */
.msg {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 16px;
}
.msg-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--hot);
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.msg-info {
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid rgba(0, 212, 255, 0.3);
}
.msg-ok {
    background: rgba(52, 211, 153, 0.1);
    color: var(--ok);
    border: 1px solid rgba(52, 211, 153, 0.3);
}

/* ── Token display block ──────────────────────────────────── */
.token-block {
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    margin-bottom: 16px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    word-break: break-all;
    display: flex;
    align-items: center;
    gap: 10px;
}
.token-block code {
    flex: 1;
    color: var(--accent);
}
.btn-copy {
    background: var(--surface);
    color: var(--text-dim);
    border: 1px solid var(--border-strong);
    padding: 5px 12px;
    font-size: 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    flex-shrink: 0;
}
.btn-copy:hover { color: var(--accent); border-color: var(--accent); }

/* ── Tables ───────────────────────────────────────────────── */
table {
    width: 100%;
    border-collapse: collapse;
}
thead th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}
tbody td {
    padding: 10px 16px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface-2); }
.temp-cell {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* ── Empty state ──────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-dim);
}
.empty-state .big-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.4;
}
.empty-state p { margin-bottom: 8px; font-size: 0.95rem; }

/* ── Stats grid ───────────────────────────────────────────── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 22px;
}
.stat-cell {
    background: var(--surface-2);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
}
.stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 4px;
    font-variant-numeric: tabular-nums;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--text-faint);
    font-size: 0.8rem;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
    .header { padding: 14px 16px; flex-wrap: wrap; gap: 8px; }
    .header-nav { gap: 12px; font-size: 0.85rem; }
    .container { padding: 18px 12px; }
    .sensor-temp { font-size: 2.2rem; }
    .sensors-grid { grid-template-columns: 1fr; }
    .form-card { margin: 24px 12px 0; padding: 28px 22px; }
    thead th, tbody td { padding: 8px 12px; }
}