/* Custom CSS for Brain Test Game Website - Fresh Minimal Style */

/* Fresh Minimal color variables */
:root {
    --primary-bg: #FFFFFF;
    --secondary-bg: #F8F9FA;
    --border-color: #E9ECEF;
    --text-primary: #2C3E50;
    --text-secondary: #6C757D;
    --accent-primary: #1ABC9C;
    --accent-secondary: #F1C40F;
    --accent-hover: #16A085;
    --card-shadow: rgba(0, 0, 0, 0.08);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Animation utilities */
.animate-fadeInUp {
    animation: fadeInUp 0.4s ease-out;
}

.animate-slideIn {
    animation: slideIn 0.3s ease-out;
}

/* Custom scrollbar - Fresh Minimal style */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Hero section - Fresh Minimal style */
.hero-bg {
    background: var(--primary-bg);
    border-bottom: 1px solid var(--border-color);
}

/* Level jump input styling */
.level-jump-input:focus {
    box-shadow: 0 0 0 3px rgba(26, 188, 156, 0.2);
    border-color: var(--accent-primary);
    outline: none;
}

/* Level cards - Fresh Minimal card style */
.level-card {
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background: var(--primary-bg);
}

.level-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--card-shadow);
}

.level-card-image {
    aspect-ratio: 2/3;
    position: relative;
    overflow: hidden;
    background-color: var(--secondary-bg);
}

/* Level range tabs - Fresh Minimal button style */
.level-range-tab {
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    background: var(--primary-bg);
    color: var(--text-primary);
}

.level-range-tab:hover:not(.active) {
    background-color: var(--secondary-bg);
    border-color: var(--accent-primary);
}

.level-range-tab.active {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* FAQ Accordion - Fresh Minimal style */
.faq-item {
    border: 1px solid var(--border-color);
    background: var(--secondary-bg);
    border-radius: 6px;
}

.faq-question {
    color: var(--text-primary);
    background: transparent;
}

.faq-question:hover {
    color: var(--accent-primary);
    background: var(--primary-bg);
}

.faq-answer {
    color: var(--text-secondary);
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
}

/* Navigation buttons */
.nav-button {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.nav-button:hover {
    background: var(--secondary-bg);
    border-color: var(--accent-primary);
}

/* Content cards */
.content-card {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

/* Button variations - Fresh Minimal style */
.btn-primary {
    background: var(--accent-primary);
    color: white;
    border: 1px solid var(--accent-primary);
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--primary-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: var(--secondary-bg);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

/* Tab styling */
.tab-button {
    transition: all 0.2s ease;
    border-radius: 6px;
}