/* Voltanys Dashboard — Professional Redesign */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --v-bg: #f0f2f5;
    --v-surface: #ffffff;
    --v-nav: #1b1f27;
    --v-nav-text: #a1a7b3;
    --v-nav-active: #e4e7ec;
    --v-border: #e3e6eb;
    --v-border-light: #f0f1f3;
    --v-text-primary: #111827;
    --v-text-secondary: #4b5563;
    --v-text-muted: #9ca3af;
    --v-accent: #3b82f6;
    --v-accent-muted: #dbeafe;
    --v-red: #ef4444;
    --v-red-muted: #fef2f2;
    --v-green: #10b981;
    --v-green-muted: #ecfdf5;
    --v-amber: #f59e0b;
    --v-amber-muted: #fffbeb;
    --v-blue: #3b82f6;
    --v-purple: #8b5cf6;
    --v-orange: #f97316;
    --v-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --v-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --v-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --v-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --v-shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.04);
    --v-shadow-lg: 0 8px 24px rgba(0,0,0,0.1), 0 2px 6px rgba(0,0,0,0.04);
    --v-radius: 8px;
    --v-radius-lg: 12px;
}

/* ── Base Reset ── */
#sld-dashboard-wrap {
    font-family: var(--v-font);
    color: var(--v-text-primary);
    background: var(--v-bg);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
#sld-dashboard-wrap * { box-sizing: border-box; }
#sld-dashboard-wrap h1,
#sld-dashboard-wrap h2,
#sld-dashboard-wrap h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }

/* ═══════════════════════════════════════════
   NAVBAR — Dark, Authoritative
   ═══════════════════════════════════════════ */
.sld-navbar {
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 0 28px;
    height: 56px;
    background: var(--v-nav);
    position: sticky;
    top: 0;
    z-index: 100;
    border: none;
    box-shadow: 0 1px 0 rgba(255,255,255,0.04);
}

.sld-navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}
.sld-navbar-brand svg { width: 28px; height: 28px; }
.sld-brand-text {
    font-size: 14px;
    font-weight: 400;
    color: var(--v-nav-text);
    letter-spacing: 2px;
    text-transform: uppercase;
}
.sld-brand-text strong {
    color: #ffffff;
    font-weight: 700;
}

.sld-navbar-nav {
    display: flex;
    gap: 2px;
}
.sld-nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--v-nav-text);
    text-decoration: none;
    border-radius: 6px;
    transition: color 0.15s ease, background 0.15s ease;
}
.sld-nav-link:hover {
    color: #d1d5db;
    background: rgba(255,255,255,0.06);
}
.sld-nav-link.active {
    color: #ffffff;
    background: rgba(255,255,255,0.1);
}
.sld-nav-link svg { width: 16px; height: 16px; opacity: 0.55; }
.sld-nav-link:hover svg { opacity: 0.75; }
.sld-nav-link.active svg { opacity: 0.9; }

.sld-badge {
    font-size: 10px;
    font-weight: 700;
    font-family: var(--v-mono);
    background: var(--v-red);
    color: #fff;
    padding: 1px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    line-height: 1.4;
}

.sld-navbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

.sld-live-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
}
.sld-live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--v-green);
    box-shadow: 0 0 6px rgba(16,185,129,0.5);
    animation: v-pulse 2s cubic-bezier(0.4,0,0.6,1) infinite;
}
@keyframes v-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(16,185,129,0.5); }
    50% { opacity: 0.4; box-shadow: 0 0 2px rgba(16,185,129,0.2); }
}
.sld-live-text {
    font-size: 10px;
    font-weight: 700;
    font-family: var(--v-mono);
    color: var(--v-green);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* OFFLINE state */
.sld-live-indicator.offline .sld-live-dot {
    background: #ef4444;
    box-shadow: none;
    animation: none;
}
.sld-live-indicator.offline .sld-live-text {
    color: #f87171;
}

.sld-user-email {
    font-size: 12px;
    color: var(--v-nav-text);
    font-weight: 400;
}

/* ── Buttons ── */
.sld-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--v-font);
    border: 1px solid var(--v-border);
    border-radius: 6px;
    background: var(--v-surface);
    color: var(--v-text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}
.sld-btn:hover {
    background: var(--v-bg);
    border-color: #d1d5db;
}
.sld-btn-primary {
    background: var(--v-text-primary);
    color: #fff;
    border-color: var(--v-text-primary);
}
.sld-btn-primary:hover { background: #374151; }
.sld-btn-outline { background: transparent; }
.sld-btn-logout {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--v-nav-text);
    font-size: 12px;
    padding: 5px 12px;
    border-radius: 6px;
}
.sld-btn-logout:hover {
    background: rgba(255,255,255,0.12);
    color: #d1d5db;
}
.sld-btn-logout svg { width: 14px; height: 14px; }

/* ═══════════════════════════════════════════
   LOADING / ERROR STATES
   ═══════════════════════════════════════════ */
.sld-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    gap: 16px;
    color: var(--v-text-muted);
}
.sld-spinner {
    width: 28px;
    height: 28px;
    border: 2.5px solid var(--v-border);
    border-top-color: var(--v-text-primary);
    border-radius: 50%;
    animation: v-spin 0.65s linear infinite;
}
@keyframes v-spin { to { transform: rotate(360deg); } }

.sld-error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    gap: 12px;
    text-align: center;
    padding: 48px;
}
.sld-error-state h3 { font-size: 17px; color: var(--v-text-primary); }
.sld-error-state p { color: var(--v-text-muted); font-size: 13px; max-width: 360px; }

/* ═══════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════ */
.sld-dashboard-content {
    padding: 28px 36px;
    max-width: 1440px;
    margin: 0 auto;
}
.sld-section { margin-bottom: 28px; }
.sld-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.sld-section-header h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--v-text-primary);
    letter-spacing: -0.02em;
}
.sld-section-header h2 svg {
    color: var(--v-text-muted);
    width: 20px;
    height: 20px;
}
.sld-last-update {
    font-size: 12px;
    color: var(--v-text-muted);
    font-family: var(--v-mono);
    font-weight: 400;
}
.sld-empty {
    text-align: center;
    padding: 40px;
    color: var(--v-text-muted);
    font-size: 13px;
}

/* ═══════════════════════════════════════════
   DEVICE CARDS — Clean with Left Accent
   ═══════════════════════════════════════════ */
.sld-devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 20px;
}

.sld-device-card {
    background: var(--v-surface);
    border-radius: var(--v-radius-lg);
    box-shadow: var(--v-shadow);
    border: 1px solid var(--v-border-light);
    overflow: hidden;
    position: relative;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.sld-device-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--v-accent);
    border-radius: 12px 0 0 12px;
}
.sld-device-card:hover {
    box-shadow: var(--v-shadow-md);
    transform: translateY(-2px);
}

.sld-device-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
}
.sld-device-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--v-text-primary);
}
.sld-device-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--v-mono);
    letter-spacing: 0.02em;
}
.sld-device-status.connected { color: var(--v-green); }
.sld-device-status.disconnected { color: var(--v-red); }
.sld-status-dot,
.sld-device-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}
.sld-device-status.connected .sld-device-status-dot {
    box-shadow: 0 0 4px rgba(16,185,129,0.5);
}

.sld-device-card-body { padding: 0 20px 16px; }

.sld-device-readings {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 12px;
}
.sld-reading {
    display: flex;
    align-items: baseline;
    gap: 3px;
    transition: background 0.3s ease;
    padding: 4px 8px;
    border-radius: 6px;
}
.sld-reading.sld-flash {
    background: var(--v-accent-muted);
}
.sld-reading-icon {
    font-size: 18px;
    display: flex;
    align-items: center;
    margin-right: 2px;
}
.sld-reading-value {
    font-size: 20px;
    font-weight: 700;
    font-family: var(--v-mono);
    color: var(--v-text-primary);
    letter-spacing: -0.02em;
}
.sld-reading-unit {
    font-size: 11px;
    color: var(--v-text-muted);
    font-weight: 500;
    margin-left: 1px;
}

.sld-device-thresholds {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.sld-threshold-tag {
    font-size: 11px;
    font-family: var(--v-mono);
    color: var(--v-text-secondary);
    padding: 3px 8px;
    background: var(--v-bg);
    border-radius: 4px;
    font-weight: 400;
}
.sld-threshold-tag .up { color: var(--v-red); font-weight: 500; }
.sld-threshold-tag .down { color: var(--v-blue); font-weight: 500; }

.sld-device-door {
    font-size: 12px;
    font-weight: 500;
}
.sld-device-door.closed { color: var(--v-green); }
.sld-device-door.open { color: var(--v-amber); }

.sld-device-card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--v-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fafbfc;
}
.sld-device-sync {
    font-size: 11px;
    color: var(--v-text-muted);
    font-family: var(--v-mono);
}
.sld-btn-dashboard {
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--v-font);
    color: #fff;
    background: var(--v-text-primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s ease;
    letter-spacing: 0.01em;
}
.sld-btn-dashboard:hover { background: #374151; }

/* ═══════════════════════════════════════════
   STAT CARDS (Detail View) — Clean, Uniform
   ═══════════════════════════════════════════ */
.sld-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
.sld-stat-card {
    background: var(--v-surface);
    border-radius: var(--v-radius);
    border: 1px solid var(--v-border);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.sld-stat-card::before { display: none; }

.sld-stat-icon {
    display: flex;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--v-bg);
}
.sld-stat-icon svg { width: 18px; height: 18px; stroke: var(--v-text-muted) !important; }
.sld-stat-info { display: flex; flex-direction: column; gap: 1px; }
.sld-stat-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--v-text-muted);
    text-transform: none;
    letter-spacing: 0;
}
.sld-stat-value {
    font-size: 18px;
    font-weight: 700;
    font-family: var(--v-mono);
    color: var(--v-text-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}
.sld-stat-gauge { display: none; }

/* ═══════════════════════════════════════════
   EXTREMES — Clean, No Tints
   ═══════════════════════════════════════════ */
.sld-extremes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}
.sld-extreme-card {
    background: var(--v-surface);
    border-radius: var(--v-radius);
    border: 1px solid var(--v-border);
    padding: 16px 14px 12px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.sld-extreme-label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--v-text-muted);
    text-transform: none;
    letter-spacing: 0;
    margin-bottom: 4px;
}
.sld-extreme-value {
    display: block;
    font-size: 22px;
    font-weight: 700;
    font-family: var(--v-mono);
    color: var(--v-text-primary);
    letter-spacing: -0.03em;
    margin-bottom: 2px;
}
.sld-extreme-date {
    display: block;
    font-size: 10px;
    color: var(--v-text-muted);
    margin-bottom: 0;
}
.sld-extreme-bar {
    height: 2px;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}
.sld-bar-red,
.sld-bar-blue,
.sld-bar-cyan,
.sld-bar-gray { background: var(--v-border); }

/* ═══════════════════════════════════════════
   CHART — More Breathing Room
   ═══════════════════════════════════════════ */
.sld-chart-container {
    background: var(--v-surface);
    border-radius: var(--v-radius-lg);
    box-shadow: var(--v-shadow);
    border: 1px solid var(--v-border-light);
    padding: 24px;
    margin-bottom: 24px;
}
.sld-chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.sld-chart-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--v-text-primary);
}
.sld-chart-filters { display: flex; gap: 6px; }
.sld-chip {
    padding: 5px 14px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--v-font);
    border: 1px solid var(--v-border);
    border-radius: 20px;
    background: var(--v-surface);
    color: var(--v-text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}
.sld-chip:hover {
    border-color: var(--v-text-muted);
    background: var(--v-bg);
}
.sld-chip.active {
    background: var(--v-text-primary);
    color: #fff;
    border-color: var(--v-text-primary);
}
.sld-chart-wrapper {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}
.sld-chart-wrapper canvas {
    position: absolute;
    top: 0; left: 0;
    width: 100% !important;
    height: 100% !important;
}

/* ═══════════════════════════════════════════
   THRESHOLDS — Mono Values, Engineering Feel
   ═══════════════════════════════════════════ */
.sld-thresholds-section {
    background: var(--v-surface);
    border-radius: var(--v-radius-lg);
    box-shadow: var(--v-shadow);
    border: 1px solid var(--v-border-light);
    padding: 24px;
}
.sld-thresholds-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--v-text-primary);
}
.sld-thresholds-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}
.sld-threshold-item {
    padding: 14px 16px;
    background: var(--v-bg);
    border-radius: var(--v-radius);
    transition: background 0.15s ease;
}
.sld-threshold-item:hover { background: #eef0f3; }
.sld-threshold-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--v-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 4px;
}
.sld-threshold-value {
    font-size: 18px;
    font-weight: 700;
    font-family: var(--v-mono);
    letter-spacing: -0.02em;
}
.sld-text-danger { color: var(--v-red); }
.sld-text-info { color: var(--v-blue); }

/* ═══════════════════════════════════════════
   NOTIFICATIONS — Left Border Accent
   ═══════════════════════════════════════════ */
.sld-notifications-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sld-notification-item,
.sld-notif-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    background: var(--v-surface);
    border-radius: var(--v-radius);
    box-shadow: var(--v-shadow-sm);
    border: 1px solid var(--v-border-light);
    border-left: 4px solid var(--v-text-muted);
    transition: box-shadow 0.15s ease;
}
.sld-notification-item:hover,
.sld-notif-item:hover { box-shadow: var(--v-shadow); }

.sld-notif-item.danger { border-left-color: var(--v-red); }
.sld-notif-item.warning { border-left-color: var(--v-amber); }
.sld-notif-item.info { border-left-color: var(--v-blue); }

.sld-notif-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 7px;
    display: none;
}

.sld-notif-icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.sld-notif-content { flex: 1; }
.sld-notif-message {
    font-size: 13px;
    font-weight: 500;
    color: var(--v-text-primary);
    line-height: 1.5;
}
.sld-notif-date,
.sld-notif-time {
    font-size: 11px;
    color: var(--v-text-muted);
    font-family: var(--v-mono);
    margin-top: 2px;
}

/* ═══════════════════════════════════════════
   LOGS TABLE — Alternating Rows, Shadow Container
   ═══════════════════════════════════════════ */
.sld-logs-table-wrap {
    background: var(--v-surface);
    border-radius: var(--v-radius-lg);
    box-shadow: var(--v-shadow);
    border: 1px solid var(--v-border-light);
    overflow: hidden;
}
.sld-logs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.sld-logs-table thead th {
    padding: 12px 18px;
    text-align: left;
    font-size: 10px;
    font-weight: 700;
    color: var(--v-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: #f8f9fb;
    border-bottom: 1px solid var(--v-border);
}
.sld-logs-table tbody td {
    padding: 10px 18px;
    color: var(--v-text-secondary);
    font-family: var(--v-mono);
    font-size: 12px;
}
.sld-logs-table tbody tr:nth-child(even) td {
    background: #fafbfc;
}
.sld-logs-table tbody tr:hover td {
    background: #f0f4ff;
}
.sld-logs-table tbody tr:last-child td { border-bottom: none; }

/* ═══════════════════════════════════════════
   SETTINGS TAB — Alert Thresholds Form
   ═══════════════════════════════════════════ */
.sld-settings-card {
    background: var(--v-surface);
    border-radius: var(--v-radius-lg);
    border: 1px solid var(--v-border);
    padding: 28px;
    max-width: 640px;
}
.sld-settings-desc {
    font-size: 13px;
    color: var(--v-text-secondary);
    line-height: 1.6;
    margin: 0 0 20px 0;
}
.sld-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}
.sld-settings-field label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--v-text-secondary);
    margin-bottom: 6px;
}
.sld-settings-field input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--v-border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--v-mono);
    color: var(--v-text-primary);
    background: var(--v-bg);
    transition: border-color 0.15s ease, background 0.15s ease;
    outline: none;
}
.sld-settings-field input:focus {
    border-color: var(--v-text-muted);
    background: var(--v-surface);
}
.sld-settings-field input::placeholder {
    color: var(--v-text-muted);
    font-family: var(--v-font);
    font-size: 13px;
}
.sld-settings-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
#sld-settings-msg {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}
#sld-settings-msg.sld-msg-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}
#sld-settings-msg.sld-msg-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* ═══════════════════════════════════════════
   LOGIN PAGE (PRESERVED — no changes)
   ═══════════════════════════════════════════ */
#sld-login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    padding: 40px 20px;
    background: #f1f5f9;
}

.sld-login-card {
    width: 100%;
    max-width: 420px;
    background: #ffffff;
    border-radius: 14px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.04);
}

.sld-login-header {
    text-align: center;
    padding: 36px 36px 0;
}

.sld-logo-icon {
    display: inline-block;
    margin-bottom: 10px;
}

.sld-brand {
    font-size: 18px;
    font-weight: 400;
    letter-spacing: 2.5px;
    color: #64748b;
}

.sld-brand span,
.sld-brand strong {
    font-weight: 700;
    color: #1a73a7;
}

.sld-login-body {
    padding: 24px 36px;
}

.sld-login-title {
    font-size: 22px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
}

.sld-login-subtitle {
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 24px;
}

.sld-alert {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.sld-alert-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.sld-alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.sld-input-group {
    position: relative !important;
    margin-bottom: 16px !important;
}

.sld-input-icon {
    position: absolute !important;
    left: 14px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    color: #94a3b8 !important;
    display: flex !important;
    align-items: center !important;
    pointer-events: none !important;
    z-index: 1 !important;
}

.sld-input-group input {
    width: 100% !important;
    padding: 12px 14px 12px 42px !important;
    border: 1.5px solid #e2e8f0 !important;
    border-radius: 10px !important;
    font-size: 14px !important;
    font-family: inherit !important;
    color: #1e293b !important;
    background: #f8fafc !important;
    transition: all 0.2s ease !important;
    outline: none !important;
    box-shadow: none !important;
    height: auto !important;
    line-height: 1.5 !important;
    margin: 0 !important;
    appearance: none !important;
    -webkit-appearance: none !important;
}

.sld-input-group input:focus {
    border-color: #1a73a7 !important;
    background: #fff !important;
    box-shadow: 0 0 0 3px rgba(26, 115, 167, 0.1) !important;
}

.sld-input-group input::placeholder {
    color: #94a3b8 !important;
}

.sld-toggle-password {
    position: absolute !important;
    right: 12px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    background: none !important;
    background-color: transparent !important;
    border: none !important;
    cursor: pointer !important;
    color: #94a3b8 !important;
    padding: 4px !important;
    display: flex !important;
    box-shadow: none !important;
    outline: none !important;
    width: auto !important;
    height: auto !important;
    min-width: auto !important;
    min-height: auto !important;
    margin: 0 !important;
    border-radius: 6px !important;
    transition: color 0.15s ease !important;
}

.sld-toggle-password:hover {
    color: #475569 !important;
    background: none !important;
    box-shadow: none !important;
}

.sld-toggle-password:focus {
    background: none !important;
    box-shadow: none !important;
    outline: none !important;
}

#sld-login-btn,
#sld-signup-btn {
    width: 100% !important;
    padding: 13px !important;
    font-size: 14px !important;
    margin-top: 8px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    border: none !important;
    border-radius: 10px !important;
    font-weight: 600 !important;
    letter-spacing: 0.3px !important;
    cursor: pointer !important;
    background: #1a73a7 !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(26, 115, 167, 0.25) !important;
    font-family: inherit !important;
    transition: all 0.2s ease !important;
}

#sld-login-btn:hover,
#sld-signup-btn:hover {
    background: #155e89 !important;
    box-shadow: 0 4px 14px rgba(26, 115, 167, 0.3) !important;
    transform: translateY(-1px) !important;
}

#sld-login-btn:active,
#sld-signup-btn:active {
    transform: translateY(0) !important;
    box-shadow: 0 2px 6px rgba(26, 115, 167, 0.2) !important;
}

.sld-btn-text { display: inline; }
.sld-btn-loader { display: inline-flex; align-items: center; }

.sld-register-link {
    text-align: center;
    padding-top: 10px;
}

.sld-register-link p {
    font-size: 13px;
    color: #64748b;
    margin: 0;
}

.sld-link {
    color: #1a73a7;
    text-decoration: none;
    font-weight: 600;
}

.sld-link:hover {
    text-decoration: underline;
}

.sld-login-footer {
    text-align: center;
    padding: 18px 36px 24px;
    border-top: 1px solid #e2e8f0;
}

.sld-footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 2px;
    font-size: 13px;
    color: #94a3b8;
}

.sld-footer-brand strong {
    color: #64748b;
}

.sld-copyright {
    font-size: 11px;
    color: #94a3b8;
}

#sld-signup-wrap {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    padding: 40px 20px;
    background: #f1f5f9;
}


/* ═══════════════════════════════════════════
   ADMIN (PRESERVED)
   ═══════════════════════════════════════════ */
.sld-admin-wrap { max-width: 800px; font-family: var(--v-font); }
.sld-admin-wrap h1 { font-size: 20px; margin-bottom: 6px; }
.sld-admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin: 16px 0;
}
.sld-admin-stat-card { padding: 14px; border-radius: 6px; text-align: center; }
.sld-admin-pending { background: #fef9e7; color: #7d6608; }
.sld-admin-approved { background: #e8f5e9; color: #1b5e20; }
.sld-admin-rejected { background: #fbe9e7; color: #b71c1c; }
.sld-admin-stat-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 2px; }
.sld-admin-stat-card p { font-size: 11px; font-weight: 600; text-transform: uppercase; margin: 0; }

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 1200px) {
    .sld-stats-grid { grid-template-columns: repeat(4, 1fr); }
    .sld-thresholds-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .sld-navbar {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 16px;
        gap: 8px;
    }
    .sld-navbar-nav {
        width: 100%;
        order: 3;
        justify-content: center;
        gap: 4px;
        padding-top: 8px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .sld-dashboard-content { padding: 16px; }
    .sld-devices-grid { grid-template-columns: 1fr; }
    .sld-stats-grid { grid-template-columns: repeat(3, 1fr); }
    .sld-extremes-grid { grid-template-columns: 1fr 1fr; }
    .sld-thresholds-grid { grid-template-columns: 1fr 1fr; }
    .sld-user-email { display: none; }
    .sld-chart-container { padding: 16px; }
    .sld-thresholds-section { padding: 16px; }
}

@media (max-width: 480px) {
    .sld-stats-grid { grid-template-columns: 1fr 1fr; }
    .sld-extremes-grid { grid-template-columns: 1fr; }
    .sld-thresholds-grid { grid-template-columns: 1fr; }
    .sld-nav-link { font-size: 12px; padding: 6px 10px; }
}