:root {
    --primary: #FF3B30;
    --primary-dark: #cc0000;
    --primary-soft: rgba(255, 59, 48, 0.08);
    --accent: #FF9500;
    --success: #34C759;
    --slate-50: #F8FAFC;
    --slate-100: #F1F5F9;
    --slate-400: #94A3B8;
    --slate-500: #64748B;
    --slate-800: #1E293B;
    --slate-900: #0F172A;
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
    --card-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    --slate-50: #0F172A;
    --slate-100: #1E293B;
    --slate-400: #64748B;
    --slate-500: #94A3B8;
    --slate-800: #F1F5F9;
    --slate-900: #F8FAFC;
    --glass: rgba(15, 23, 42, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    transition: background-color 0.3s, border-color 0.3s, color 0.1s;
}

body {
    overflow-x: hidden;
    background-color: var(--slate-50);
    scroll-behavior: smooth;
    color: var(--slate-900);
}

/* Dynamic Animated Background - Mesh Gradient Pro */
.glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background:
        radial-gradient(at 0% 0%, rgba(255, 59, 48, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(255, 149, 0, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(255, 59, 48, 0.05) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(0, 122, 255, 0.05) 0px, transparent 50%);
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
    animation: moveBg 20s infinite alternate;
}

@keyframes moveBg {
    from {
        transform: scale(1) rotate(0deg);
    }

    to {
        transform: scale(1.1) rotate(5deg);
    }
}

/* Premium Glassmorphism */
.premium-glass {
    background: var(--glass);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border: 1px solid var(--glass-border);
}

/* Inputs Refinement */
.premium-input {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--slate-900);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-input:focus {
    background: var(--glass);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-soft);
    transform: translateY(-2px);
}

/* Popular Tag Refinement */
.popular-tag {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--slate-500);
}

.popular-tag:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(255, 59, 48, 0.3);
}

/* Suggestions Dropdown */
.suggestions-dropdown {
    position: absolute;
    width: 100%;
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    border-radius: 1.5rem;
    margin-top: 0.5rem;
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    max-height: 20rem;
    overflow-y: auto;
    z-index: 999;
}

.suggestion-item {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 1px solid var(--glass-border);
    font-weight: 600;
    color: var(--slate-800);
}

.suggestion-item:hover {
    background: var(--primary-soft);
    color: var(--primary);
    padding-left: 2rem;
}

/* Bus Card Styles - Next Gen */
.bus-card {
    background: var(--glass);
    backdrop-filter: blur(30px);
    border-radius: 2.5rem;
    padding: 2.5rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--card-shadow);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.bus-card:hover {
    transform: translateY(-12px) scale(1.01);
    box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.15);
}

.bus-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 8px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    opacity: 0.9;
}

.bus-id-pill {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: 1rem;
    font-weight: 800;
    font-size: 1rem;
    box-shadow: 0 8px 16px rgba(255, 59, 48, 0.25);
}

.time-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 2rem;
    background: var(--slate-100);
    padding: 1.5rem;
    border-radius: 2rem;
}

.time-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--slate-900);
    letter-spacing: -0.04em;
}

/* Timeline refinement */
.timeline-dot {
    position: absolute;
    left: -24px;
    top: 6px;
    width: 12px;
    height: 12px;
    background: var(--slate-50);
    border: 3px solid var(--slate-400);
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.timeline-item {
    transition: all 0.3s;
    opacity: 0.7;
}

.timeline-item:hover {
    opacity: 1;
    transform: translateX(4px);
    color: var(--primary) !important;
}

.timeline-item:hover .timeline-dot {
    border-color: var(--primary);
    background: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-soft);
    transform: scale(1.3);
}

/* Floating Navigation */
nav {
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1));
}

.nav-item {
    transition: all 0.3s;
}

.nav-item:active {
    transform: scale(0.9);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--slate-400);
    border-radius: 10px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }

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

.animate-fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-up {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Theme Toggle Switch */
.theme-switch {
    width: 60px;
    height: 30px;
    background: var(--slate-100);
    border-radius: 30px;
    position: relative;
    cursor: pointer;
    border: 1px solid var(--glass-border);
}

.theme-switch::after {
    content: '\f185';
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--accent);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .theme-switch::after {
    content: '\f186';
    left: 33px;
    background: var(--slate-900);
    color: #4facfe;
}

/* Live Badge Pulse */
.live-pulse {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 rgba(52, 199, 89, 0.4);
    animation: successPulse 2s infinite;
}

@keyframes successPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(52, 199, 89, 0.7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(52, 199, 89, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(52, 199, 89, 0);
    }
}