:root {
    /* BB8 Color Palette */
    --bb8-orange: #E07A07;
    --bb8-white: #F2F2F2;
    --bb8-gray-light: #D9D9D9;
    --bb8-gray-medium: #8C8C8C;
    --bb8-gray-dark: #404040;
    --bb8-silver: #A6A6A6;
    --error-red: #D32F2F;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;

    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;

    --shadow-premium: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bb8-white);
    color: var(--bb8-gray-dark);
    font-family: var(--font-sans);
    line-height: 1.6;
    padding-top: 4px;
    /* Space for progress bar */
    overflow-x: hidden;
}

/* Progress Bar */
#progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--bb8-gray-light);
    z-index: 1000;
}

#progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--bb8-orange);
    transition: width 1s linear;
}

/* Sync Error */
#sync-error {
    background-color: var(--error-red);
    color: white;
    text-align: center;
    padding: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.9rem;
    animation: slideDown 0.5s ease;
}

.hidden {
    display: none !important;
}

header {
    padding: var(--spacing-md) var(--spacing-sm);
    text-align: center;
    background: linear-gradient(135deg, white, var(--bb8-gray-light));
    border-bottom: 1px solid var(--bb8-silver);
}

h1 {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    margin-bottom: var(--spacing-xs);
    color: var(--bb8-gray-dark);
}

#route-number {
    color: var(--bb8-orange);
    /* border-bottom: 3px solid var(--bb8-orange); */
}

.stop-info {
    font-size: 1.1rem;
    color: var(--bb8-gray-medium);
}

.highlight {
    font-weight: 700;
    color: var(--bb8-gray-dark);
}

/* Departure List */
main {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 70vh;
}

.departure-item {
    background: white;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-premium);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 5px solid var(--bb8-orange);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.departure-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.departure-info {
    flex: 1;
}

.bus-header {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    margin-bottom: 4px;
}

.bus-number {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--bb8-orange);
}

.bus-time {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--bb8-gray-dark);
}

.destination {
    color: var(--bb8-gray-medium);
    font-size: 0.95rem;
    display: block;
}

.countdown {
    text-align: right;
    min-width: 100px;
}

.time-left {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--bb8-orange);
}

.time-label {
    font-size: 0.8rem;
    color: var(--bb8-gray-medium);
    text-transform: uppercase;
}

/* Empty State */
.empty-state {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-md);
    color: var(--bb8-gray-medium);
}

footer {
    padding: var(--spacing-sm) var(--spacing-sm);
    text-align: center;
    color: var(--bb8-silver);
    font-size: 0.8rem;
}

/* Animations */
@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Mobile Optimizations */
@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }

    .bus-number {
        font-size: 1.5rem;
    }

    .time-left {
        font-size: 1.1rem;
    }
}