/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-card-hover: #1e2a4a;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: rgba(99, 102, 241, 0.2);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-card: linear-gradient(145deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Dashboard Layout ===== */
.dashboard {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    box-shadow: var(--shadow-glow);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 1.75rem;
    -webkit-text-fill-color: initial;
}

.live-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-success);
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--accent-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.user-icon {
    font-size: 1.1rem;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.refresh-btn,
.export-btn,
.logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.refresh-btn:hover {
    background: var(--accent-primary);
    color: var(--text-primary);
    transform: rotate(180deg);
}

.export-btn:hover {
    background: var(--accent-success);
    color: var(--text-primary);
}

.logout-btn:hover {
    background: var(--accent-danger);
    color: var(--text-primary);
}

.refresh-btn.loading svg {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ===== Date Filter ===== */
.date-filter {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    gap: 24px;
}

.filter-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
}

.filter-icon {
    font-size: 1.25rem;
}

.filter-inputs {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-group label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.date-input {
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    min-width: 150px;
}

.date-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.05);
}

.filter-apply-btn,
.filter-clear-btn {
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-apply-btn {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

.filter-apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

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

.filter-clear-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tab:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.tab.active {
    background: var(--gradient-card);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.tab-icon {
    font-size: 1.25rem;
}

/* ===== KPI Cards ===== */
.kpi-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    border-color: var(--accent-primary);
}

.kpi-card.highlight {
    background: var(--gradient-card);
    border-color: rgba(99, 102, 241, 0.4);
}

.kpi-card.nps-card .kpi-value {
    color: var(--accent-success);
}

.kpi-icon {
    font-size: 2.5rem;
    opacity: 0.9;
}

.kpi-content {
    display: flex;
    flex-direction: column;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kpi-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* ===== Charts Section ===== */
.charts-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
    min-height: 300px;
}

.chart-card canvas {
    max-height: 250px !important;
    height: 250px !important;
}

.chart-card:hover {
    border-color: var(--accent-primary);
}

.chart-card.wide-card {
    grid-column: span 3;
}

.chart-card.wide-card canvas {
    max-height: 280px !important;
    height: 280px !important;
}

.chart-card.gauge-card {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.chart-card.gauge-card canvas {
    max-height: 120px !important;
    height: 120px !important;
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.gauge-container {
    position: relative;
    width: 180px;
    height: 120px;
}

.gauge-value {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Feedback Section ===== */
.feedback-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-icon {
    font-size: 1.25rem;
}

.feedback-list {
    max-height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 8px;
}

.feedback-list::-webkit-scrollbar {
    width: 6px;
}

.feedback-list::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.feedback-list::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 3px;
}

.feedback-item {
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent-primary);
    transition: all var(--transition-fast);
}

.feedback-item:hover {
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.feedback-text {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 8px;
    line-height: 1.5;
}

.feedback-meta {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.feedback-empty {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 1200px) {
    .kpi-section {
        grid-template-columns: repeat(2, 1fr);
    }

    .charts-section {
        grid-template-columns: repeat(2, 1fr);
    }

    .chart-card.wide-card {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .dashboard {
        padding: 16px;
    }

    .header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .header-left,
    .header-right {
        flex-direction: column;
        gap: 12px;
    }

    .tabs {
        flex-direction: column;
    }

    .kpi-section {
        grid-template-columns: 1fr;
    }

    .charts-section {
        grid-template-columns: 1fr;
    }

    .chart-card.wide-card {
        grid-column: span 1;
    }
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.kpi-card,
.chart-card,
.feedback-section {
    animation: fadeIn 0.5s ease forwards;
}

.kpi-card:nth-child(1) {
    animation-delay: 0.1s;
}

.kpi-card:nth-child(2) {
    animation-delay: 0.2s;
}

.kpi-card:nth-child(3) {
    animation-delay: 0.3s;
}

.kpi-card:nth-child(4) {
    animation-delay: 0.4s;
}