/* ================================================
   AUTOPAL PREMIUM DESIGN SYSTEM
   Ultra-Luxury Automotive Experience
   ================================================ */

/* ==================== ROOT VARIABLES ==================== */
:root {
    /* Primary Colors */
    --autopal-black: #0a0a0a;
    --autopal-black-soft: #141414;
    --autopal-white: #ffffff;
    --autopal-gray-dark: #1a1a1a;
    --autopal-gray-medium: #2a2a2a;
    --autopal-gray-light: #e5e5e5;
    
    /* Accent Colors */
    --autopal-blue: #0066ff;
    --autopal-blue-dark: #0052cc;
    --autopal-blue-light: #3385ff;
    --autopal-gold: #d4af37;
    --autopal-success: #00c851;
    --autopal-warning: #ffbb33;
    
    /* Glass Morphism */
    --glass-white: rgba(255, 255, 255, 0.05);
    --glass-white-medium: rgba(255, 255, 255, 0.08);
    --glass-white-strong: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-strong: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --glass-shadow-hover: 0 12px 48px rgba(0, 102, 255, 0.2);
    --glass-blur: blur(20px);
    --glass-blur-strong: blur(30px);
    
    /* Gradients */
    --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 100%);
    --gradient-blue: linear-gradient(135deg, #0066ff 0%, #0052cc 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-medium: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-notification: 400;
    --z-tooltip: 500;
}

/* ==================== GLOBAL RESET ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background: var(--autopal-black);
    color: var(--autopal-white);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ==================== PREMIUM NAVIGATION ==================== */
.premium-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-medium);
}

.premium-nav.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
}

.premium-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.premium-nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.premium-nav-logo:hover {
    transform: scale(1.05);
}

.premium-nav-logo img {
    height: 35px;
    width: auto;
}

/* Navigation Menu */
.premium-nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.premium-nav-item {
    position: relative;
}

.premium-nav-link {
    color: var(--autopal-white);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.premium-nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--autopal-blue);
    transition: width var(--transition-medium);
}

.premium-nav-link:hover {
    color: var(--autopal-blue-light);
}

.premium-nav-link:hover::after,
.premium-nav-link.active::after {
    width: 100%;
}

/* Navigation Actions */
.premium-nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.premium-nav-btn {
    padding: 0.6rem 1.5rem;
    background: transparent;
    color: var(--autopal-white);
    border: 1px solid var(--glass-border-strong);
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-medium);
    text-decoration: none;
    display: inline-block;
}

.premium-nav-btn:hover {
    background: var(--glass-white-medium);
    border-color: var(--autopal-blue);
    color: var(--autopal-blue-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.premium-nav-btn.primary {
    background: var(--gradient-blue);
    border: none;
    color: var(--autopal-white);
}

.premium-nav-btn.primary:hover {
    background: var(--autopal-blue-dark);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.3);
}

/* Mobile Menu Toggle */
.premium-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.premium-nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--autopal-white);
    transition: all var(--transition-fast);
}

.premium-nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.premium-nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.premium-nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==================== GLASS MORPHISM COMPONENTS ==================== */
.glass-card {
    background: var(--glass-white-medium);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-medium);
}

.glass-card:hover {
    background: var(--glass-white-strong);
    border-color: var(--glass-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow-hover);
}

.glass-button {
    background: var(--glass-white-medium);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border-strong);
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    color: var(--autopal-white);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.glass-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition-medium);
}

.glass-button:hover {
    background: var(--glass-white-strong);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.1);
}

.glass-button:hover::before {
    transform: translate(-50%, -50%) scale(2);
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
    .premium-nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: var(--glass-blur-strong);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateX(-100%);
        transition: transform var(--transition-medium);
    }
    
    .premium-nav-menu.active {
        transform: translateX(0);
    }
    
    .premium-nav-toggle {
        display: flex;
    }
    
    .premium-nav-actions {
        margin-left: auto;
        margin-right: 1rem;
    }
}

@media (max-width: 768px) {
    .premium-nav-container {
        padding: 0 1rem;
    }
    
    .premium-nav-actions {
        gap: 0.75rem;
    }
    
    .premium-nav-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-left {
    animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slide-right {
    animation: slideInRight 0.6s ease-out forwards;
}

.animate-pulse {
    animation: pulse 2s infinite;
}