:root {
    --bg-dark: #121212;
    --bg-card: #1e1e1e;
    --bg-input: #2d2d2d;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #6a9ede;
    --accent-hover: #5a8ec0;
    --danger: #cf6679;
    --success: #03dac6;
    --border: #333;
    --font-main: 'Outfit', sans-serif;
}

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

body.dark-theme {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-secondary);
    font-weight: 300;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
    align-items: start;
}

@media (max-width: 1100px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    overflow: hidden;
}

.card-header {
    padding: 15px 20px;
    background-color: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.card-body {
    padding: 20px;
}

.viz-body {
    min-height: 600px;
}

/* Status Indicators */
.status-indicator {
    font-size: 0.8rem;
    font-weight: 600;
}

/* File Drop Zone */
.file-drop-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    margin: 15px 0;
    transition: all 0.3s ease;
    cursor: pointer;
}

.file-drop-zone.dragover, .file-drop-zone:hover {
    border-color: var(--accent);
    background-color: rgba(106, 158, 222, 0.1);
}

.file-drop-zone.has-file {
    border-color: var(--success);
    border-style: solid;
}

.drop-text {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.or-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0 5px;
}

.file-btn {
    color: var(--accent);
    cursor: pointer;
    font-weight: 500;
}

.file-btn:hover {
    text-decoration: underline;
}

.instruction-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

code {
    background-color: rgba(255,255,255,0.1);
    padding: 2px 4px;
    border-radius: 4px;
    font-family: monospace;
}

/* Buttons */
.btn {
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    cursor: pointer;
    font-family: var(--font-main);
    font-weight: 500;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    width: 100%;
}

.btn-outline:hover {
    background: rgba(106, 158, 222, 0.1);
}

.btn-primary {
    background-color: var(--accent);
    color: white;
    width: 100%;
}

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

.btn-large {
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-top: 10px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(100%);
}

/* Form Controls */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.row-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

select, input[type="number"] {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px;
    border-radius: 6px;
}

/* Day Picker */
.day-picker {
    display: flex;
    justify-content: space-between;
    background-color: var(--bg-input);
    padding: 5px;
    border-radius: 6px;
}

.day-picker label {
    margin: 0;
    padding: 5px;
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-primary);
}

.day-picker input {
    margin-bottom: 4px;
}

/* Slider Inputs */
.slider-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
}

.small-note {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 8px;
}

/* Metrics */
.metrics-summary {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.metric-item {
    display: block;
    margin-bottom: 4px;
}

.highlight {
    color: var(--accent);
    font-weight: 600;
}