:root {
    --primary-bg: #1a1d23;
    --secondary-bg: #242831;
    --card-bg: #2d3139;
    --accent-blue: #4fc3f7;
    --accent-green: #66bb6a;
    --accent-orange: #ffb74d;
    --accent-red: #ef5350;
    --accent-gold: #ffd700;
    --accent-purple: #ab47bc;
    --text-primary: #ffffff;
    --text-secondary: #b0bec5;
    --text-muted: #78909c;
    --border-subtle: #37414b;
    --today-glow: rgba(79, 195, 247, 0.2);
    --vip-glow: rgba(255, 215, 0, 0.2);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lifted: 0 4px 16px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header */
.header {
    background: var(--card-bg);
    padding: 20px 16px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 100%;
    text-align: center;
}

.title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
    background: linear-gradient(45deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

/* Today's Info Card */
.today-card {
    margin: 16px;
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-subtle);
}

.today-date {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.today-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.conductor-info, .vip-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.conductor-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--accent-blue);
}

.vip-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-gold);
    display: flex;
    align-items: center;
    gap: 6px;
}

.vip-icon {
    font-size: 16px;
}

.conductor-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-active {
    background: var(--accent-green);
    color: white;
    animation: glow 2s ease-in-out infinite alternate;
}

.status-skipped {
    background: var(--accent-red);
    color: white;
}

.status-none {
    background: var(--secondary-bg);
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
}

/* Quick Actions */
.quick-actions {
    padding: 0 16px 16px;
    display: flex;
    gap: 8px;
}

.quick-btn {
    flex: 1;
    padding: 12px 16px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.quick-btn:active {
    transform: scale(0.96);
}

.quick-btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

/* Month Filter */
.filter-section {
    padding: 0 16px 20px;
}

.filter-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.filter-select {
    width: 100%;
    padding: 14px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23b0bec5' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 40px;
}

/* Conductor List */
.conductor-list {
    padding: 0 16px 24px;
}

.conductor-item {
    background: var(--card-bg);
    border-radius: 16px;
    margin-bottom: 12px;
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.conductor-item.today {
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px var(--today-glow);
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(79, 195, 247, 0.05) 100%);
}

.conductor-item.today::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--accent-blue), var(--accent-green));
}

.conductor-item.skipped {
    opacity: 0.6;
    background: var(--secondary-bg);
}

.conductor-content {
    padding: 16px 20px;
}

.conductor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.conductor-date {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.day-badge {
    background: var(--secondary-bg);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-completed { background: var(--accent-green); }
.status-active-dot { 
    background: var(--accent-blue); 
    animation: pulse 2s infinite;
    box-shadow: 0 0 10px var(--accent-blue);
}
.status-pending { background: var(--text-muted); }
.status-skipped-dot { background: var(--accent-red); }

.conductor-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.conductor-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.role-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.conductor-icon {
    background: var(--accent-blue);
    color: white;
}

.vip-icon-circle {
    background: linear-gradient(45deg, var(--accent-gold), var(--accent-orange));
    color: white;
}

.person-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.vip-person-name {
    color: var(--accent-gold);
}

.conductor-item.skipped .person-name {
    text-decoration: line-through;
    color: var(--text-muted);
}

.no-assignment {
    color: var(--text-muted);
    font-style: italic;
    font-size: 14px;
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-subtle);
    border-top: 3px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    opacity: 0.5;
}

/* Desktop Styles */
@media (min-width: 768px) {
    .container {
        max-width: 800px;
        margin: 0 auto;
    }
    
    .title {
        font-size: 32px;
    }
    
    .header {
        padding: 32px 24px;
    }
    
    .today-card, .filter-section, .conductor-list {
        margin: 24px;
        padding: 24px;
    }
    
    .quick-actions {
        padding: 0 24px 24px;
    }
    
    .conductor-content {
        padding: 24px;
    }
    
    .conductor-item {
        margin-bottom: 16px;
    }
    
    .conductor-item:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lifted);
    }
    
    .today-info {
        flex-direction: row;
        gap: 32px;
    }
    
    .conductor-details {
        flex-direction: row;
        gap: 24px;
        align-items: center;
    }
}

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes glow {
    0% { box-shadow: 0 0 5px var(--accent-green); }
    100% { box-shadow: 0 0 15px var(--accent-green); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode adjustments for OLED screens */
@media (prefers-contrast: high) {
    :root {
        --primary-bg: #000000;
        --secondary-bg: #111111;
        --card-bg: #1a1a1a;
    }
}