/* 
Kyveras Website - Challenges Page Styles
Additional styles specific to the Challenges page
*/

/* Hero Section */
.challenges-hero {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: var(--space-xxl) 0;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
}

.challenges-hero:before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: url('../images/pattern-dots.svg') repeat;
    opacity: 0.1;
    z-index: 1;
}

.challenges-hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.challenges-hero h1 {
    color: var(--white);
    font-size: 2.8rem;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.challenges-hero .hero-visual img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.2));
}

/* Challenges Intro Section */
.challenges-intro {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xs);
}

/* Challenge Navigation */
.challenge-navigation {
    padding-top: var(--space-sm);
    background-color: var(--white);
    border-bottom: 1px solid var(--neutral-light);
    position: sticky;
    top: 70px;
    z-index: 90;
    box-shadow: var(--shadow-sm);
}

.challenge-tabs {
    display: flex;
    overflow-x: auto;
    padding: var(--space-md) 0;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

.challenge-tabs::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Edge */
}

.challenge-tab {
    background: var(--neutral-light);
    border: none;
    padding: var(--space-sm) var(--space-md);
    margin-right: var(--space-sm);
    border-radius: var(--radius-md);
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-medium);
    color: var(--primary-medium);
    font-family: var(--font-body);
    font-size: 1rem;
    border-bottom: 2px solid transparent;
}

.challenge-tab:hover {
    background-color: rgba(77, 157, 224, 0.1);
    color: var(--primary-dark);
    border-bottom: 2px solid var(--accent);
}

.challenge-tab.active {
    background: linear-gradient(135deg, var(--accent) 0%, var(--primary-light) 100%);
    color: var(--white);
    box-shadow: var(--shadow-sm);
    border-bottom: 2px solid var(--primary-dark);
}

.challenge-tab:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Challenge Content */
.challenge-content {
    padding: var(--space-xxl) 0;
    background-color: var(--neutral-light);
}

.challenge-section {
    display: none;
    animation: fadeIn var(--transition-slow) forwards;
}

.challenge-section.active {
    display: block;
}

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

.challenge-box {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border-top: 3px solid var(--accent);
}

.challenge-header {
    background: linear-gradient(135deg, var(--primary-medium) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.challenge-header h2 {
    color: var(--white);
    margin-bottom: 0;
    font-size: 1.5rem;
}

.challenge-header .challenge-icon {
    flex-shrink: 0;
    background-color: transparent;
    border-radius: 50%;
    padding: var(--space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    box-shadow: none;
}

.challenge-header .challenge-icon img {
    width: 60px;
    height: 60px;
    filter: brightness(1) invert(0);
    object-fit: contain;
}

.challenge-body {
    padding: var(--space-lg);
}

/* Solution sections styling */
.solution-header {
    margin-bottom: var(--space-lg);
    border-bottom: 2px solid var(--accent);
    padding-bottom: var(--space-sm);
}

.solution-header h3 {
    color: var(--primary-medium);
    margin-bottom: 0;
    font-size: 1.5rem;
}

.solution-content p {
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.solution-callout {
    background-color: rgba(77, 157, 224, 0.1);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
    border-left: 4px solid var(--accent);
    box-shadow: var(--shadow-sm);
}

.solution-callout h4 {
    margin-bottom: var(--space-sm);
    color: var(--primary-medium);
    font-size: 1.25rem;
}

.solution-callout ul {
    list-style: none;
    padding-left: var(--space-md);
}

.solution-callout li {
    margin-bottom: var(--space-sm);
    position: relative;
    padding-left: var(--space-md);
}

.solution-callout li:before {
    content: '✓';
    color: var(--accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.solution-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.comparison-col {
    background-color: var(--neutral-light);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.comparison-col:last-child {
    background-color: rgba(77, 157, 224, 0.15);
    border-left: 4px solid var(--accent);
}

.comparison-col h4 {
    margin-bottom: var(--space-sm);
    color: var(--primary-medium);
    font-size: 1.25rem;
    border-bottom: 2px solid var(--neutral-medium);
    padding-bottom: var(--space-xs);
}

.comparison-col:last-child h4 {
    border-bottom: 2px solid var(--accent);
    color: var(--primary-dark);
}

.comparison-col ul {
    list-style: none;
    padding-left: var(--space-md);
}

.comparison-col li {
    margin-bottom: var(--space-sm);
    position: relative;
    padding-left: var(--space-md);
}

.comparison-col li:before {
    content: '•';
    color: var(--neutral-medium);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.comparison-col:last-child li:before {
    content: '✓';
    color: var(--accent);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .challenges-hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .challenges-hero h1 {
        font-size: 2.5rem;
    }
    
    .challenge-header {
        flex-direction: column;
        text-align: center;
    }
    
    .solution-comparison {
        grid-template-columns: 1fr;
    }
    
    .comparison-col:last-child {
        border-left: none;
        border-top: 4px solid var(--accent);
    }
}

@media (max-width: 768px) {
    .challenge-tabs {
        justify-content: flex-start;
        padding-bottom: var(--space-sm);
    }
    
    .challenge-tab {
        font-size: 0.9rem;
        padding: var(--space-xs) var(--space-sm);
    }
    
    .challenge-header h2 {
        font-size: 1.3rem;
    }
    
    .solution-header h3 {
        font-size: 1.3rem;
    }
}