/* Landing Page Styles */
.landing-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

/* Hero Section */
.hero-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    animation: fadeIn 0.8s ease-out;
}

/* Main Logo */
.main-logo {
    position: relative;
    margin-bottom: var(--spacing-xl);
    cursor: pointer;
}

.main-logo-cards {
    position: relative;
    width: 160px;
    height: 120px;
    margin: 0 auto;
    transition: all var(--transition-base);
}

.main-logo-cards:hover .logo-card-left {
    transform: rotate(-15deg) translateX(-5px);
}

.main-logo-cards:hover .logo-card-right {
    transform: rotate(15deg) translateX(5px);
}

.logo-card-left, .logo-card-right {
    position: absolute;
    width: 80px;
    height: 112px;
    border: 4px solid var(--primary-purple);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--bg-dark-secondary), var(--bg-dark-tertiary));
    transition: all var(--transition-slow);
}

.logo-card-left {
    left: 20px;
    transform: rotate(-10deg);
    z-index: 1;
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
}

.logo-card-right {
    right: 20px;
    top: -15px;
    transform: rotate(10deg);
    z-index: 2;
    box-shadow: 0 10px 30px rgba(147, 51, 234, 0.3);
}

.main-logo-cards:hover .logo-card-left,
.main-logo-cards:hover .logo-card-right {
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow-intense);
}

.logo-text {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: var(--spacing-md);
    text-shadow: 0 0 30px var(--glow-purple);
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    justify-content: center;
}

.btn-auth {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    min-width: 150px;
}

.btn-google-landing {
    background: white;
    color: #3c4043;
    border: 1px solid #dadce0;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.btn-google-landing:hover {
    background: #f8f9fa;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-google-landing .google-icon {
    flex-shrink: 0;
}

/* Card Carousel Strip */
.card-carousel-container {
    width: 100%;
    position: relative;
    margin: var(--spacing-2xl) 0;
    height: 180px;
    overflow: hidden;
}

.glow-strip {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(124, 58, 237, 0.1) 30%,
        rgba(147, 51, 234, 0.2) 60%,
        var(--bg-dark) 100%);
    z-index: 2;
    box-shadow: 0 -20px 40px rgba(124, 58, 237, 0.3);
}

.card-carousel {
    position: absolute;
    top: 0;
    display: flex;
    animation: scroll-left 30s linear infinite;
    z-index: 1;
}

.carousel-card {
    flex-shrink: 0;
    width: 120px;
    height: 168px;
    margin: 0 var(--spacing-md);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #4A1A7E, #2D1B69);
    border: 2px solid var(--primary-purple);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.carousel-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, 
        transparent 30%, 
        rgba(255, 255, 255, 0.1) 50%, 
        transparent 70%);
    animation: shimmer 3s infinite;
}

.carousel-card:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow);
}

.carousel-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--accent-purple));
    color: var(--text-primary);
    font-size: var(--font-size-xs);
    font-weight: bold;
}

@keyframes scroll-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes shimmer {
    0% { transform: rotate(0deg) translateX(-100%); }
    100% { transform: rotate(0deg) translateX(100%); }
}

/* Features Section */
.features-section {
    width: 100%;
    max-width: 1200px;
    margin: var(--spacing-2xl) auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.features-title {
    text-align: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.feature-card {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-dark-secondary));
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    animation: fadeIn 0.8s ease-out backwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent, 
        var(--primary-purple), 
        transparent);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.feature-card:hover::before {
    transform: translateX(100%);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-purple);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-purple), var(--accent-purple));
    border-radius: var(--radius-lg);
    font-size: var(--font-size-2xl);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Decorative Elements */
.floating-cards {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.floating-card {
    position: absolute;
    width: 60px;
    height: 84px;
    border: 2px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-sm);
    background: rgba(124, 58, 237, 0.05);
    animation: float 20s infinite ease-in-out;
}

.floating-card:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 25s;
}

.floating-card:nth-child(2) {
    top: 70%;
    right: 10%;
    animation-delay: 5s;
    animation-duration: 30s;
}

.floating-card:nth-child(3) {
    top: 40%;
    left: 80%;
    animation-delay: 10s;
    animation-duration: 35s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(5deg);
    }
    25% {
        transform: translateY(-20px) rotate(-5deg);
    }
    50% {
        transform: translateY(10px) rotate(5deg);
    }
    75% {
        transform: translateY(-10px) rotate(-5deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .main-logo-cards {
        width: 120px;
        height: 90px;
    }
    
    .logo-card-left, .logo-card-right {
        width: 60px;
        height: 84px;
    }
    
    .logo-text {
        font-size: var(--font-size-2xl);
    }
    
    .auth-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }
    
    .btn-auth {
        width: 100%;
    }
    
    .card-carousel-container {
        height: 140px;
    }
    
    .carousel-card {
        width: 90px;
        height: 126px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .feature-card {
        padding: var(--spacing-lg);
    }
}