/* Landing Page Styles */

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-xl);
    background: var(--gradient-magical);
    overflow: hidden;
}

.stars-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #eee, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, #fff, transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.6), transparent),
        radial-gradient(2px 2px at 160px 30px, #fff, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: twinkle 4s ease-in-out infinite alternate;
}

@keyframes twinkle {
    0% { opacity: 0.7; }
    100% { opacity: 1; }
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
    color: var(--white);
}

.game-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
}

.title-math {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    animation: glow 2s ease-in-out infinite alternate;
}

.title-quest {
    background: linear-gradient(45deg, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: clamp(1rem, 3vw, 1.5rem);
    font-weight: 500;
    margin-top: var(--space-md);
    opacity: 0.95;
    color: #ffd700;
}

.subtitle-small {
    font-size: clamp(0.9rem, 2.5vw, 1.25rem);
    font-weight: 400;
    margin-top: var(--space-sm);
    opacity: 0.9;
}

@keyframes glow {
    0% { 
        filter: brightness(1) drop-shadow(0 0 5px rgba(255, 215, 0, 0.3));
    }
    100% { 
        filter: brightness(1.2) drop-shadow(0 0 15px rgba(255, 215, 0, 0.6));
    }
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    margin-bottom: var(--space-2xl);
    text-align: center;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-character {
    flex: 0 0 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.character-mascot {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, #ffd700, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    animation: float 3s ease-in-out infinite;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.character-mascot::before {
    content: '🧙‍♂️';
    position: absolute;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Features Preview */
.features-preview {
    padding: var(--space-3xl) var(--space-xl);
    background: var(--white);
    text-align: center;
}

.features-preview h2 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    color: var(--gray-800);
    margin-bottom: var(--space-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    animation: bounce 2s ease-in-out infinite;
}

.feature-card:nth-child(2) .feature-icon {
    animation-delay: 0.5s;
}

.feature-card:nth-child(3) .feature-icon {
    animation-delay: 1s;
}

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: var(--space-md);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Name Entry Form */
.name-form {
    text-align: center;
}

.name-form h2 {
    color: var(--gray-800);
    margin-bottom: var(--space-md);
    font-size: 1.75rem;
}

.name-form p {
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.skip-option {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-200);
}

.skip-option button {
    font-size: 0.9rem;
    padding: var(--space-sm) var(--space-lg);
}

.avatar-selection {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    max-height: 280px;
    overflow-y: auto;
}

.avatar-option {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 3px solid transparent;
}

.avatar-option:hover {
    background: var(--gray-200);
    transform: scale(1.05);
}

.avatar-option.selected {
    border-color: var(--primary);
    background: var(--primary-light);
    transform: scale(1.1);
}

.auth-switch {
    text-align: center;
    margin-top: var(--space-lg);
    color: var(--gray-600);
}

.auth-switch a {
    color: var(--primary);
    font-weight: var(--font-weight-semibold);
    transition: color var(--transition-fast);
}

.auth-switch a:hover {
    color: var(--primary-dark);
}

/* World Map Styles */
.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.avatar-display {
    width: 60px;
    height: 60px;
    background: var(--white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-md);
}

.user-stats {
    color: var(--white);
}

.username {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-xs);
}

.level-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.875rem;
}

.game-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* World Map Container */
.world-map-container {
    padding: var(--space-2xl) var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.map-title {
    text-align: center;
    color: var(--white);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-2xl);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Worlds Grid */
.worlds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.world-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
    position: relative;
}

.world-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Explicit hover states for performance optimization */
.world-card-hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.world-card-normal {
    transform: translateY(0) scale(1);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

.world-card.locked {
    opacity: 0.7;
}

.world-card.locked::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.world-image {
    height: 120px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.world-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(255,255,255,0.1) 0%, 
        rgba(255,255,255,0.05) 50%, 
        rgba(0,0,0,0.05) 100%);
}

.world-info {
    padding: var(--space-xl);
}

.world-info h3 {
    font-size: 1.5rem;
    color: var(--gray-800);
    margin-bottom: var(--space-sm);
}

.world-info p {
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.world-progress {
    margin-bottom: var(--space-lg);
}

.progress-text {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--space-sm);
    display: block;
}

.world-enter {
    width: 100%;
}

/* Training Section */
.training-section {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    backdrop-filter: blur(10px);
}

.training-section h2 {
    color: var(--white);
    font-size: 1.75rem;
    margin-bottom: var(--space-xl);
}

.training-options {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Responsive Design */
/* Medium screens - prevent button overlap */
@media (max-width: 992px) {
    .hero-actions {
        gap: var(--space-sm);
        justify-content: center;
    }
    
    .hero-actions .btn {
        flex: 0 1 auto;
        min-width: 180px;
        font-size: 0.9rem;
        padding: 0.75rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding: var(--space-lg);
    }
    
    .hero-character {
        flex: none;
        margin-top: var(--space-xl);
    }
    
    .character-mascot {
        width: 150px;
        height: 150px;
        font-size: 4rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .worlds-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .game-header {
        flex-direction: column;
        gap: var(--space-lg);
        padding: var(--space-lg);
    }
    
    .training-options {
        flex-direction: column;
        align-items: center;
    }
    
    .training-btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Fix button overlap on medium screens */
    .hero-actions {
        gap: var(--space-md);
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
        margin: 0.25rem 0;
    }
}

@media (max-width: 768px) {
    .avatar-selection {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .avatar-selection {
        grid-template-columns: repeat(2, 1fr);
        max-height: 240px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}