/* ==========================================================================
   Electric Tracker Style Sheet
   Premium Dark Slate Design System
   ========================================================================== */

:root {
    /* Color Palette - Premium Light Theme */
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #fcfdfe;
    --bg-input: #f8fafc;
    
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    /* Brand Accent Colors (Darker for readability in light mode) */
    --accent-cyan: #0891b2;
    --accent-cyan-rgb: 8, 145, 178;
    --accent-blue: #2563eb;
    --accent-blue-rgb: 37, 99, 235;
    --accent-purple: #7c3aed;
    --accent-purple-rgb: 124, 58, 237;
    --accent-yellow: #d97706;
    --accent-yellow-rgb: 217, 119, 6;
    
    --accent-danger: #dc2626;
    --accent-success: #16a34a;
    
    /* Shadows & Transitions */
    --shadow-sm: 0 2px 8px rgba(148, 163, 184, 0.08);
    --shadow-md: 0 8px 30px rgba(148, 163, 184, 0.12);
    --shadow-glow-cyan: 0 0 20px rgba(8, 145, 178, 0.08);
    --shadow-glow-blue: 0 0 20px rgba(37, 99, 235, 0.08);
    --shadow-glow-purple: 0 0 20px rgba(124, 58, 237, 0.08);
    --shadow-glow-yellow: 0 0 20px rgba(217, 119, 6, 0.08);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Fonts */
    --font-heading: 'Outfit', 'Sarabun', sans-serif;
    --font-body: 'Sarabun', 'Outfit', sans-serif;
}

/* Base resets & global styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    background-image: 
        radial-gradient(at 10% 10%, rgba(37, 99, 235, 0.02) 0px, transparent 50%),
        radial-gradient(at 90% 90%, rgba(124, 58, 237, 0.015) 0px, transparent 50%),
        radial-gradient(at 90% 10%, rgba(8, 145, 178, 0.02) 0px, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6, .stat-value {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* App Layout Container */
.app-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Header Styles */
.app-header {
    background-color: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 18px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon-img {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.logo-icon-img:hover {
    transform: scale(1.05);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.logo-icon-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Sync status badge styles */
.badge-online {
    background-color: rgba(22, 163, 74, 0.1) !important;
    color: var(--accent-success) !important;
    border: 1px solid rgba(22, 163, 74, 0.25) !important;
}

.badge-offline {
    background-color: rgba(71, 85, 105, 0.1) !important;
    color: var(--text-secondary) !important;
    border: 1px solid rgba(71, 85, 105, 0.2) !important;
}

.badge-syncing {
    background-color: rgba(217, 119, 6, 0.1) !important;
    color: var(--accent-yellow) !important;
    border: 1px solid rgba(217, 119, 6, 0.25) !important;
    animation: pulseGlow 1.5s infinite ease-in-out;
}

.logo-text h1 {
    font-size: 22px;
    background: linear-gradient(90deg, #0f172a, #334155);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 2px;
}

.logo-text span {
    font-size: 12px;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(6, 182, 212, 0.4);
    filter: brightness(1.1);
}

.btn-secondary {
    background-color: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--border-hover);
    color: #ffffff;
}

.btn-danger-link {
    background: none;
    border: none;
    color: var(--accent-danger);
    font-size: 13px;
    opacity: 0.8;
    padding: 4px 8px;
}

.btn-danger-link:hover {
    opacity: 1;
    text-decoration: underline;
}

.btn-xs {
    padding: 6px 10px;
    font-size: 12px;
    border-radius: 6px;
}

.btn-block {
    width: 100%;
}

/* 4 Quick Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    opacity: 0.7;
}

.stat-card:hover {
    transform: translateY(-4px);
    background-color: var(--bg-card-hover);
    box-shadow: var(--shadow-md);
}

/* Colors for stats card borders & glows */
.card-glow-cyan::before { background-color: var(--accent-cyan); }
.card-glow-cyan:hover { box-shadow: var(--shadow-glow-cyan), var(--shadow-md); border-color: rgba(6, 182, 212, 0.4); }

.card-glow-blue::before { background-color: var(--accent-blue); }
.card-glow-blue:hover { box-shadow: var(--shadow-glow-blue), var(--shadow-md); border-color: rgba(59, 130, 246, 0.4); }

.card-glow-purple::before { background-color: var(--accent-purple); }
.card-glow-purple:hover { box-shadow: var(--shadow-glow-purple), var(--shadow-md); border-color: rgba(168, 85, 247, 0.4); }

.card-glow-yellow::before { background-color: var(--accent-yellow); }
.card-glow-yellow:hover { box-shadow: var(--shadow-glow-yellow), var(--shadow-md); border-color: rgba(234, 179, 8, 0.4); }

.stat-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.stat-card .card-title {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
}

.card-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.cyan-bg { background-color: rgba(6, 182, 212, 0.1); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.2); }
.blue-bg { background-color: rgba(59, 130, 246, 0.1); color: var(--accent-blue); border: 1px solid rgba(59, 130, 246, 0.2); }
.purple-bg { background-color: rgba(168, 85, 247, 0.1); color: var(--accent-purple); border: 1px solid rgba(168, 85, 247, 0.2); }
.yellow-bg { background-color: rgba(234, 179, 8, 0.1); color: var(--accent-yellow); border: 1px solid rgba(234, 179, 8, 0.2); }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.stat-card .currency {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card .stat-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 8px;
}

.stat-card .meta-label {
    color: var(--text-muted);
}

.stat-card .meta-value {
    color: var(--text-primary);
    font-weight: 500;
}

/* Helper text colors */
.text-cyan { color: var(--accent-cyan) !important; }
.text-blue { color: var(--accent-blue) !important; }
.text-purple { color: var(--accent-purple) !important; }
.text-yellow { color: var(--accent-yellow) !important; }
.text-bold { font-weight: 600 !important; }

/* Dashboard Two-Column Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 20px;
}

.layout-left {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.layout-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Main Dashboard Cards (Inside Layout) */
.dashboard-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.dashboard-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 14px;
}

.dashboard-card .card-header h3 {
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.card-title-group {
    display: flex;
    flex-direction: column;
}

.card-title-group h3 {
    margin-bottom: 2px;
}

.sub-title {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Chart Styles */
.chart-toggles {
    display: flex;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    padding: 3px;
    border-radius: 8px;
}

.toggle-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-body);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.toggle-btn.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(6, 182, 212, 0.2);
}

.chart-container {
    position: relative;
    height: 320px;
    width: 100%;
}

/* Meter Entry Form */
.record-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

.form-row {
    display: flex;
    gap: 12px;
}

.col-6 {
    flex: 1;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group input {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 14px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 8px rgba(6, 182, 212, 0.25);
}

.input-desc {
    font-size: 11px;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

/* History logs table styles */
.table-responsive {
    overflow-x: auto;
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th, .data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--bg-input);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.015);
}

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

/* Table action buttons */
.btn-action-edit {
    color: var(--accent-cyan);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    margin-right: 8px;
    transition: var(--transition-fast);
}

.btn-action-edit:hover {
    transform: scale(1.1);
    color: #ffffff;
}

.btn-action-delete {
    color: var(--accent-danger);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    transition: var(--transition-fast);
}

.btn-action-delete:hover {
    transform: scale(1.1);
    color: #ff6b6b;
}

/* Empty State Style */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: var(--text-muted);
}
.empty-state i {
    font-size: 32px;
    margin-bottom: 12px;
}

/* Bill Breakdown List */
.breakdown-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.breakdown-sub-item {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    padding-left: 16px;
    color: var(--text-secondary);
}

.item-label {
    color: var(--text-secondary);
}

.item-value {
    color: var(--text-primary);
    font-weight: 500;
}

.border-top {
    border-top: 1px solid var(--border-color);
}

.pt-2 {
    padding-top: 8px;
}

.total-row {
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    margin-top: 6px;
}

.total-row .item-label {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.total-row .item-value {
    color: var(--accent-cyan);
    font-size: 18px;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

/* Modal Dialog */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.35);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.modal-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    width: 90%;
    max-width: 550px;
    padding: 24px;
    transform: translateY(20px);
    transition: var(--transition-normal);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-backdrop.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.modal-header h2 {
    font-size: 20px;
    color: var(--text-primary);
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

.modal-close-btn:hover {
    color: #ffffff;
}

.modal-body form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 8px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
}

/* Tariffs Info Box */
.tariffs-info {
    background-color: var(--bg-input);
    border-left: 3px solid var(--accent-blue);
    padding: 12px;
    border-radius: 0 8px 8px 0;
}

.tariffs-info h4 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.tariffs-info ul {
    list-style: none;
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tariffs-info li {
    display: flex;
    justify-content: space-between;
}

.tariffs-info span {
    font-weight: 500;
    color: var(--text-primary);
}

/* Toast Notification Styling */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 2000;
}

.toast {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-cyan);
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 250px;
    transform: translateX(120%);
    transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
    transform: translateX(0);
}

.toast-success { border-left-color: var(--accent-success); }
.toast-danger { border-left-color: var(--accent-danger); }
.toast-warning { border-left-color: var(--accent-yellow); }

/* Pulse animation for logo glowing effect */
@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
        border-color: rgba(6, 182, 212, 0.4);
    }
    50% {
        box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
        border-color: rgba(6, 182, 212, 0.8);
    }
}

/* Custom Toggle Switch Styles */
.toggle-switch-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 10px;
}

.switch-control {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.switch-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition-normal);
    border-radius: 34px;
    border: 1px solid var(--border-color);
}

.switch-label:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: #ffffff;
    transition: var(--transition-normal);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.switch-input:checked + .switch-label {
    background-color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.switch-input:checked + .switch-label:before {
    transform: translateX(20px);
}

.switch-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.switch-text .text-bold {
    font-size: 14px;
    font-weight: 500;
}

.mb-2 {
    margin-bottom: 8px;
}

/* View Navigation Tabs */
.view-navigation {
    display: flex;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: 14px;
    gap: 8px;
    align-self: flex-start;
    box-shadow: var(--shadow-sm);
    margin-bottom: 8px;
}

.nav-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-body);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-tab:hover {
    color: var(--text-primary);
    background-color: rgba(0, 0, 0, 0.03);
}

.nav-tab.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.18);
}

.calendar-view-layout {
    width: 100%;
}

/* Simplified Aircon Tracker Badges */
.badge-meter {
    background-color: rgba(8, 145, 178, 0.08);
    color: var(--accent-cyan);
    border: 0.5px solid rgba(8, 145, 178, 0.15);
}

.badge-brother {
    background-color: rgba(124, 58, 237, 0.08);
    color: var(--accent-purple);
    border: 0.5px solid rgba(124, 58, 237, 0.15);
}

.badge-self {
    background-color: rgba(37, 99, 235, 0.08);
    color: var(--accent-blue);
    border: 0.5px solid rgba(37, 99, 235, 0.15);
}

/* Standalone Aircon sub-tabs */
.aircon-sub-tabs {
    display: flex;
    gap: 10px;
}

.aircon-sub-tabs .btn {
    border-radius: 10px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
}

.aircon-sub-tabs .btn.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.18);
}

.aircon-sub-tabs .btn:not(.active):hover {
    background-color: var(--bg-card-hover);
    border-color: var(--border-hover);
}

/* Standalone Aircon Daily Cost Badge Styling */
.badge-cost {
    background-color: rgba(217, 119, 6, 0.08);
    color: var(--accent-yellow);
    border: 0.5px solid rgba(217, 119, 6, 0.15);
}

@media (max-width: 992px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .app-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 12px 18px;
    }
    
    .header-logo {
        flex-direction: row;
        gap: 10px;
        text-align: left;
    }
    
    .header-logo .logo-text h1 {
        font-size: 18px;
    }
    
    .header-actions {
        margin-top: 0;
    }
}

@media (max-width: 576px) {
    .view-navigation {
        width: 100%;
        display: flex;
        border-radius: 12px;
    }
    
    .nav-tab {
        flex: 1;
        justify-content: center;
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px;
    }
    
    .stat-card {
        padding: 12px;
        border-radius: 12px;
    }
    
    .stat-card .stat-value {
        font-size: 18px !important;
    }
    
    .stat-card .card-title {
        font-size: 11px;
    }
    
    .stat-card .stat-meta {
        font-size: 10px;
        padding-top: 6px;
    }
    
    .form-row {
        flex-direction: row;
        gap: 8px;
    }
    
    .btn span {
        display: inline;
    }
}