/* ================== CONTROL PANEL ================== */
:root {
    /* Dark Mode Sky Blue Theme Colors */
    --primary-bg: #0f172a;
    --secondary-bg: #1e293b;
    --card-bg: #334155;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --highlight-bg: #1e40af;
    --highlight-text: #dbeafe;
    
    /* Typography */
    --font-title: 'Gabriela', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 4rem 0;
    --card-padding: 2rem;
    --border-radius: 12px;
    
    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ================== RESET AND BASE STYLES ================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* ================== TYPOGRAPHY ================== */
h1, h2, h3 {
    font-family: var(--font-title);
    font-weight: 400;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--accent-color);
    text-align: center;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--accent-color);
    margin-bottom: 2rem;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-primary);
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ================== HEADER ================== */
.header {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--card-bg) 100%);
    border-bottom: 2px solid var(--border-color);
}

.main-title {
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    font-weight: 300;
    animation: fadeInUp 1s ease 0.2s both;
}

/* ================== NAVIGATION ================== */
.navigation {
    background: var(--card-bg);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.nav-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.nav-link:hover {
    color: var(--accent-color);
    background: rgba(56, 189, 248, 0.1);
    transform: translateY(-2px);
}

.nav-link:active {
    transform: translateY(2px);
}

/* ================== MAIN CONTENT ================== */
.main-content {
    padding: var(--section-padding);
}

.content-section {
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.content-section.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
    border-radius: 2px;
}

/* ================== CARDS ================== */
.content-card {
    background: var(--card-bg);
    padding: var(--card-padding);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-medium);
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* ================== HIGHLIGHT BOX ================== */
.highlight-box {
    background: linear-gradient(135deg, var(--highlight-bg), #1d4ed8);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin: 2rem 0;
    border-left: 4px solid var(--accent-color);
}

.highlight-box h3 {
    color: var(--highlight-text);
    margin-bottom: 1rem;
}

.highlight-box ul {
    list-style: none;
    padding-left: 0;
}

.highlight-box li {
    color: var(--highlight-text);
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

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

/* ================== PROCESS STEPS ================== */
.process-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(56, 189, 248, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
    opacity: 0;
    transform: translateX(-30px);
    transition: all var(--transition-slow);
}

.step.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.step-number {
    background: var(--accent-color);
    color: var(--primary-bg);
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

/* ================== MISTAKES GRID ================== */
.mistakes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.mistake-card {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid #ef4444;
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.mistake-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.mistake-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(220, 38, 38, 0.3);
}

.mistake-card h3 {
    color: #fecaca;
    margin-bottom: 1rem;
}

.mistake-card p {
    color: #fef2f2;
}

/* ================== VERSES SECTION ================== */
.verses-container {
    max-height: 600px;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.verses-container.expanded {
    max-height: none;
}

.verse-category {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(56, 189, 248, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.verse-category h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    text-align: center;
}

.verse-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.verse-item {
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

.verse-reference {
    font-weight: 600;
    color: var(--accent-color);
    display: block;
    margin-bottom: 0.5rem;
}

.verse-item p {
    margin-bottom: 0;
    font-style: italic;
    color: var(--text-secondary);
}

.additional-verses {
    opacity: 0;
    animation: fadeInUp 0.5s ease forwards;
}

/* ================== BUTTONS ================== */
.expand-verses-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: var(--primary-bg);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    margin: 2rem auto 0;
    display: block;
    transition: all var(--transition-medium);
    box-shadow: 0 5px 15px rgba(56, 189, 248, 0.3);
}

.expand-verses-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(56, 189, 248, 0.4);
    background: linear-gradient(135deg, var(--accent-hover), #0284c7);
}

.expand-verses-btn:active {
    transform: translateY(2px);
}

/* ================== FOOTER ================== */
.footer {
    background: var(--secondary-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.footer p {
    color: var(--text-muted);
    margin-bottom: 0;
}

/* ================== ANIMATIONS ================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ================== RESPONSIVE DESIGN ================== */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-list {
        gap: 1rem;
        justify-content: center;
    }
    
    .nav-link {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        align-self: center;
    }
    
    .mistakes-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        gap: 1.5rem;
    }
    
    .content-card {
        padding: 1.5rem;
    }
    
    .highlight-box {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 2rem 0;
    }
    
    .main-content {
        padding: 2rem 0;
    }
    
    .content-section {
        margin-bottom: 2rem;
    }
    
    .section-title {
        margin-bottom: 2rem;
    }
    
    .content-card {
        padding: 1rem;
    }
    
    .highlight-box {
        padding: 1rem;
    }
    
    .step {
        padding: 1rem;
    }
    
    .mistake-card {
        padding: 1.5rem;
    }
}

/* ================== ACCESSIBILITY ================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.nav-link:focus,
.expand-verses-btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e2e8f0;
        --border-color: #64748b;
    }
}