/* Utsah CGM Dashboard Styles */

:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border-color: #e0e6ed;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);

    /* Glucose range colors */
    --range-low: #e74c3c;
    --range-normal: #50c878;
    --range-high: #f39c12;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), #357abd);
    color: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

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

.time-select {
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    background: white;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    box-shadow: var(--shadow);
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.refresh-icon {
    font-size: 1.2rem;
    animation: spin 1s linear infinite paused;
}

.refresh-icon.spinning {
    animation-play-state: running;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

/* Current Reading Card */
.current-reading-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.current-reading-card h2 {
    color: white;
    opacity: 0.9;
    font-size: 1.2rem;
}

.current-reading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 20px 0;
}

.glucose-value {
    font-size: 4rem;
    font-weight: 700;
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.glucose-value .unit {
    font-size: 1.5rem;
    opacity: 0.8;
}

.glucose-indicator {
    text-align: right;
}

.trend-arrow {
    font-size: 3rem;
    margin-bottom: 10px;
}

.reading-time {
    font-size: 1rem;
    opacity: 0.9;
}

/* Range Indicator */
.range-indicator {
    margin-top: 20px;
    position: relative;
}

.range-bar {
    display: flex;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    overflow: hidden;
    height: 40px;
    margin-bottom: 10px;
}

.range-bar > div {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
}

.range-low {
    background: var(--range-low);
}

.range-normal {
    background: var(--range-normal);
    flex: 2;
}

.range-high {
    background: var(--range-high);
}

.range-marker {
    position: absolute;
    bottom: -5px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid white;
    transform: translateX(-50%);
    transition: left 0.5s ease;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 15px;
    align-items: center;
    transition: transform 0.3s ease;
}

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

.stat-icon {
    font-size: 2.5rem;
}

.stat-content h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-unit {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Charts */
.chart-card {
    min-height: 400px;
}

.chart-container {
    position: relative;
    height: 400px;
}

.chart-container-small {
    position: relative;
    height: 300px;
}

.chart-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

/* Table */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: var(--bg-color);
}

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background: var(--bg-color);
}

.table-loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px !important;
}

/* Loading Indicator */
.loading-container {
    text-align: center;
    padding: 60px 20px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.loading-spinner {
    border: 4px solid var(--bg-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

/* Error Message */
.error-container {
    background: #fee;
    color: var(--danger-color);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--danger-color);
    margin-bottom: 25px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background: var(--card-bg);
    margin: 10% auto;
    padding: 30px;
    border-radius: 12px;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-hover);
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-secondary);
}

.close:hover {
    color: var(--text-primary);
}

.export-options {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.export-options .btn-primary {
    flex: 1;
    justify-content: center;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.footer-note {
    font-size: 0.9rem;
    margin-top: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        text-align: center;
    }

    .header h1 {
        font-size: 2rem;
    }

    .header-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .glucose-value {
        font-size: 3rem;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .chart-container {
        height: 300px;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 8px;
    }
}

/* Glucose level colors */
.glucose-low {
    color: var(--range-low);
}

.glucose-normal {
    color: var(--range-normal);
}

.glucose-high {
    color: var(--range-high);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.5s ease;
}