/* App logo style */
.app_logo {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    border-radius: 5px;
    object-fit: cover;  
    padding-top: 2px;
}
/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-link:hover {
    color: #ffd700;
    background-color: rgba(255,255,255,0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem;
}

.feature {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.feature i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ffd700;
}

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* About Page Enhancements */

.about-banner {
    width: 50%;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.16);
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.section-heading { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.section-heading .logo { width: 40px; height: 40px; object-fit: contain; }
/* Team Section */
.team-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.team-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23667eea" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.team-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.team-heading-container {
    display: inline-flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    position: relative;
}

.team-heading-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.team-heading-icon:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
}

.team-heading-icon i {
    font-size: 1.8rem;
    color: white;
    transition: all 0.3s ease;
}

.team-heading-icon:hover i {
    transform: scale(1.1);
}

.team-heading {
    font-size: 3rem;
    font-weight: 800;
    color: #333;
    margin: 0;
    position: relative;
    display: inline-block;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    letter-spacing: 1px;
}

.team-heading-text {
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.team-heading:hover .team-heading-text {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.team-heading-accent {
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #ffd700);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1;
}

.team-heading:hover .team-heading-accent {
    transform: scaleX(1);
}

/* Animation for the heading accent on page load */
.team-heading-accent {
    animation: slideInAccent 1s ease-out 0.5s forwards;
}

@keyframes slideInAccent {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

.team-description {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 20px auto 0;
    line-height: 1.7;
}

.team-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 30px; 
    margin-top: 0;
    position: relative;
    z-index: 1;
}

.team-card { 
    background: white;
    border-radius: 20px;
    padding: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    overflow: hidden;
    position: relative;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.team-card:hover::before {
    transform: scaleX(1);
}

.team-card:hover { 
    transform: translateY(-10px) scale(1.02); 
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
}

.team-card-inner {
    padding: 30px 25px;
    text-align: center;
}

.team-avatar-container {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.team-avatar { 
    width: 100px; 
    height: 100px; 
    border-radius: 50%; 
    object-fit: cover; 
    border: 4px solid #fff;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}

.team-avatar-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    transform: scale(0.8);
}

.team-avatar-overlay i {
    color: white;
    font-size: 24px;
}

.team-card:hover .team-avatar-overlay {
    opacity: 1;
    transform: scale(1);
}

.team-card:hover .team-avatar {
    transform: scale(1.1);
}

.team-info {
    text-align: center;
}

.team-name { 
    font-weight: 700; 
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: #333;
    letter-spacing: 0.3px;
}

.team-role { 
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.team-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.skill-tag {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    transition: all 0.2s ease;
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Responsive Design for Team Section */
@media (max-width: 768px) {
    .team-section {
        padding: 60px 0;
    }
    
    .team-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
    
    .team-card-inner {
        padding: 25px 20px;
    }
    
    .team-avatar {
        width: 80px;
        height: 80px;
    }
    
    .team-name {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .team-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .team-description {
        font-size: 1rem;
        padding: 0 20px;
    }
    
    .team-heading-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .team-heading {
        font-size: 2.2rem;
    }
    
    .team-heading-icon {
        width: 50px;
        height: 50px;
    }
    
    .team-heading-icon i {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .team-heading {
        font-size: 1.8rem;
    }
    
    .team-heading-icon {
        width: 45px;
        height: 45px;
    }
    
    .team-heading-icon i {
        font-size: 1.3rem;
    }
}

/* SIH Section */
.sih-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.sih-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="sih-grid" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23sih-grid)"/></svg>');
    opacity: 0.3;
}

.sih-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.sih-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.sih-icon i {
    font-size: 2.5rem;
    color: #ffd700;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.sih-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.sih-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.5px;
}

.sih-content {
    position: relative;
    z-index: 1;
}

.sih-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.sih-info-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.sih-info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ffd700, #ffed4e);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.sih-info-card:hover::before {
    transform: scaleX(1);
}

.sih-info-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.sih-card-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    transition: all 0.3s ease;
}

.sih-info-card:hover .sih-card-icon {
    background: rgba(255, 215, 0, 0.2);
    transform: scale(1.1);
}

.sih-card-icon i {
    font-size: 1.5rem;
    color: #ffd700;
}

.sih-card-content h3 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    opacity: 0.8;
}

.sih-card-content p {
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.sih-problem-statement {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    text-align: center;
}

.sih-problem-statement h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #ffd700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.sih-problem-statement h3 i {
    font-size: 1.5rem;
}

.problem-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.problem-description {
    font-size: 1.1rem;
    line-height: 1.7;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.sih-note {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 25px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    max-width: 800px;
    margin: 0 auto;
}

.note-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 215, 0, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.note-icon i {
    color: #ffd700;
    font-size: 1.2rem;
}

.note-content {
    flex: 1;
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.note-content code {
    background: rgba(0, 0, 0, 0.3);
    color: #ffd700;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* Responsive Design for SIH Section */
@media (max-width: 768px) {
    .sih-section {
        padding: 60px 0;
    }
    
    .sih-header h2 {
        font-size: 2.2rem;
    }
    
    .sih-subtitle {
        font-size: 1.1rem;
    }
    
    .sih-info-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
    }
    
    .sih-info-card {
        padding: 20px 15px;
    }
    
    .sih-problem-statement {
        padding: 30px 20px;
    }
    
    .problem-title {
        font-size: 1.8rem;
    }
    
    .sih-note {
        padding: 20px;
        flex-direction: column;
        text-align: center;
    }
    
    .note-icon {
        margin: 0 auto 10px;
    }
}

@media (max-width: 480px) {
    .sih-header h2 {
        font-size: 1.8rem;
    }
    
    .sih-info-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .sih-info-card {
        padding: 15px 10px;
    }
    
    .sih-card-content h3 {
        font-size: 0.8rem;
    }
    
    .sih-card-content p {
        font-size: 1rem;
    }
    
    .problem-title {
        font-size: 1.5rem;
    }
}

/* Problem Statement Details Section */
.problem-details-section {
    padding: 80px 0;
    background: #f8f9fa;
    position: relative;
}

.problem-details-header {
    text-align: center;
    margin-bottom: 60px;
}

.problem-details-header h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.problem-details-header h2 i {
    color: #667eea;
    font-size: 2rem;
}

.problem-details-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.problem-details-content {
    max-width: 1200px;
    margin: 0 auto;
}

/* Overview Card */
.problem-overview {
    margin-bottom: 60px;
}

.overview-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #e9ecef;
    display: flex;
    align-items: flex-start;
    gap: 25px;
    transition: all 0.3s ease;
}

.overview-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.overview-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.overview-icon i {
    color: white;
    font-size: 1.8rem;
}

.overview-content h3 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 15px;
    font-weight: 700;
}

.overview-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #666;
    margin: 0;
}

/* Challenges Section */
.problem-challenges {
    margin-bottom: 60px;
}

.problem-challenges h3 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.problem-challenges h3 i {
    color: #e74c3c;
    font-size: 1.5rem;
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.challenge-item {
    background: white;
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.challenge-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #e74c3c, #c0392b);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.challenge-item:hover::before {
    transform: scaleX(1);
}

.challenge-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.challenge-item i {
    font-size: 2.5rem;
    color: #e74c3c;
    margin-bottom: 15px;
    display: block;
}

.challenge-item h4 {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 10px;
    font-weight: 700;
}

.challenge-item p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

.challenge-summary {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.2);
    border-radius: 10px;
    padding: 20px;
    font-size: 1.1rem;
    line-height: 1.6;
    color: #333;
    text-align: center;
    margin: 0;
}

/* Objectives Section */
.problem-objectives {
    margin-bottom: 60px;
}

.problem-objectives h3 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.problem-objectives h3 i {
    color: #27ae60;
    font-size: 1.5rem;
}

.objectives-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.objective-item {
    background: white;
    border-radius: 15px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.objective-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.objective-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.objective-icon i {
    color: white;
    font-size: 1.3rem;
}

.objective-content h4 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 8px;
    font-weight: 700;
}

.objective-content p {
    color: #666;
    font-size: 1rem;
    line-height: 1.5;
    margin: 0;
}

/* Features Section */
.problem-features {
    margin-bottom: 60px;
}

.problem-features h3 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.problem-features h3 i {
    color: #f39c12;
    font-size: 1.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #f39c12, #e67e22);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #f39c12, #e67e22);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.feature-icon i {
    color: white;
    font-size: 1.3rem;
}

.feature-content h4 {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 10px;
    font-weight: 700;
}

.feature-content p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

/* Resources Section */
.problem-resources {
    margin-bottom: 0;
}

.resource-card {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 20px;
    padding: 30px;
    color: white;
    display: flex;
    align-items: center;
    gap: 25px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.4);
}

.resource-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resource-icon i {
    color: #ffd700;
    font-size: 1.8rem;
}

.resource-content h4 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.resource-content p {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 15px;
    line-height: 1.5;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.resource-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    color: white;
}

.resource-link i {
    font-size: 0.9rem;
}

/* Responsive Design for Problem Details */
@media (max-width: 768px) {
    .problem-details-section {
        padding: 60px 0;
    }
    
    .problem-details-header h2 {
        font-size: 2rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .overview-card {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
    }
    
    .challenges-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .objective-item {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .resource-card {
        flex-direction: column;
        text-align: center;
        padding: 25px 20px;
    }
}

@media (max-width: 480px) {
    .problem-details-header h2 {
        font-size: 1.8rem;
    }
    
    .overview-content h3 {
        font-size: 1.5rem;
    }
    
    .problem-challenges h3,
    .problem-objectives h3,
    .problem-features h3 {
        font-size: 1.6rem;
    }
    
    .challenge-item,
    .feature-card {
        padding: 20px 15px;
    }
    
    .objective-item {
        padding: 15px;
    }
}

/* Mission Section */
.mission-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.mission-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="mission-pattern" width="30" height="30" patternUnits="userSpaceOnUse"><circle cx="15" cy="15" r="2" fill="%23ffffff" opacity="0.1"/><circle cx="0" cy="0" r="1" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23mission-pattern)"/></svg>');
    opacity: 0.4;
}

.mission-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
}

.mission-header {
    text-align: center;
    margin-bottom: 60px;
}

.mission-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    backdrop-filter: blur(10px);
    border: 3px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    animation: missionPulse 3s infinite;
}

@keyframes missionPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.mission-icon i {
    font-size: 3rem;
    color: #ffd700;
}

.mission-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 3px 15px rgba(0, 0, 0, 0.3);
}

.mission-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 0.5px;
    max-width: 500px;
    margin: 0 auto;
}

.mission-statement {
    margin-bottom: 60px;
}

.mission-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    padding: 50px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.mission-text h3 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: #ffd700;
    font-weight: 700;
}

.mission-text p {
    font-size: 1.2rem;
    line-height: 1.7;
    opacity: 0.95;
    margin: 0;
}

.mission-stats {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffd700;
    margin-bottom: 5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mission-values {
    margin-bottom: 60px;
}

.mission-values h3 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ffd700, #ffed4e);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.value-card:hover::before {
    transform: scaleX(1);
}

.value-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.value-icon {
    width: 70px;
    height: 70px;
    background: rgba(255, 215, 0, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.value-card:hover .value-icon {
    background: rgba(255, 215, 0, 0.3);
    transform: scale(1.1);
}

.value-icon i {
    font-size: 2rem;
    color: #ffd700;
}

.value-card h4 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 700;
    color: white;
}

.value-card p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
    margin: 0;
}

.mission-impact {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    padding: 50px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.impact-content h3 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: #ffd700;
    font-weight: 700;
}

.impact-content p {
    font-size: 1.2rem;
    line-height: 1.7;
    opacity: 0.95;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.impact-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.highlight-item i {
    color: #27ae60;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.highlight-item span {
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
}

/* Responsive Design for Mission Section */
@media (max-width: 768px) {
    .mission-section {
        padding: 60px 0;
    }
    
    .mission-header h2 {
        font-size: 2.2rem;
    }
    
    .mission-subtitle {
        font-size: 1.1rem;
    }
    
    .mission-card {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 40px 30px;
    }
    
    .mission-text h3 {
        font-size: 1.8rem;
    }
    
    .mission-text p {
        font-size: 1.1rem;
    }
    
    .mission-stats {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .stat-item {
        padding: 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .mission-values h3 {
        font-size: 2rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .mission-impact {
        padding: 40px 30px;
    }
    
    .impact-content h3 {
        font-size: 1.8rem;
    }
    
    .impact-content p {
        font-size: 1.1rem;
    }
    
    .impact-highlights {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .mission-header h2 {
        font-size: 1.8rem;
    }
    
    .mission-icon {
        width: 80px;
        height: 80px;
    }
    
    .mission-icon i {
        font-size: 2.5rem;
    }
    
    .mission-card {
        padding: 30px 20px;
    }
    
    .mission-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .value-card {
        padding: 25px 20px;
    }
    
    .value-icon {
        width: 60px;
        height: 60px;
    }
    
    .value-icon i {
        font-size: 1.5rem;
    }
    
    .mission-impact {
        padding: 30px 20px;
    }
}
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; border: 1px solid rgba(255,255,255,0.18); background: rgba(255,255,255,0.06); }
.problem-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 12px 0 16px; }
.problem-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: 10px; padding: 14px; }
.link-card { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid rgba(255,255,255,0.14); border-radius: 10px; background: rgba(255,255,255,0.06); }
.link-card a { color: inherit; text-decoration: underline; }

/* About: Highlights bar below hero */
.about-highlights { 
    margin-top: -32px; 
    position: relative;
    z-index: 10;
}
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.highlight-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: 16px;
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}
.highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2, #ffd700);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.highlight-card:hover::before {
    transform: scaleX(1);
}
.highlight-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.2);
    background: linear-gradient(135deg, #ffffff 0%, #f0f2ff 100%);
}
.highlight-card i { 
    color: #667eea; 
    font-size: 24px; 
    width: 32px; 
    text-align: center;
    transition: all 0.3s ease;
    background: rgba(102, 126, 234, 0.1);
    padding: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
}
.highlight-card:hover i {
    color: #764ba2;
    background: rgba(118, 75, 162, 0.15);
    transform: scale(1.1) rotate(5deg);
}
.highlight-title { 
    color: #666; 
    font-size: 11px; 
    text-transform: uppercase; 
    letter-spacing: 0.8px;
    font-weight: 600;
    margin-bottom: 4px;
    opacity: 0.8;
}
.highlight-value { 
    color: #222; 
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 0.3px;
    transition: all 0.3s ease;
}
.highlight-card:hover .highlight-value {
    color: #667eea;
    transform: scale(1.05);
}

@media (max-width: 900px) {
    .highlights-grid { 
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .highlight-card {
        padding: 20px 16px;
    }
    .highlight-card i {
        font-size: 20px;
        width: 28px;
        height: 28px;
        padding: 6px;
    }
}
@media (max-width: 520px) {
    .highlights-grid { 
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .highlight-card {
        padding: 18px 14px;
        gap: 12px;
    }
    .highlight-card i {
        font-size: 18px;
        width: 26px;
        height: 26px;
        padding: 5px;
    }
    .highlight-title {
        font-size: 10px;
    }
    .highlight-value {
        font-size: 1rem;
    }
}

.hero-actions {
    margin-top: 3rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    margin: 0 10px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: #ffd700;
    color: #333;
}

.btn-primary:hover {
    background: #ffed4e;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #333;
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border-color: #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
}

/* Overview Section */
.overview {
    padding: 80px 0;
    background: white;
}

.overview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.overview-card-home {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid #e9ecef;
}

.overview-card-home:hover {
    transform: translateY(-5px);
}

.overview-card-home i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.overview-card-home h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.overview-card-home p {
    color: #666;
    margin-bottom: 1rem;
}

.param-count {
    background: #667eea;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-item i {
    font-size: 3rem;
    color: #28a745;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-item p {
    color: #666;
}

/* Quick Start Section */
.quick-start {
    padding: 80px 0;
    background: white;
}

.quick-start h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

.quick-start-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.quick-start-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.quick-start-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
}

.step-number {
    width: 60px;
    height: 60px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.quick-start-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.quick-start-card p {
    color: #666;
    margin-bottom: 1rem;
}

.quick-start-card code {
    background: #333;
    color: #ffd700;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    display: block;
    margin: 1rem 0;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #ffd700;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ffd700;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #555;
    color: #ccc;
}

/* Download Dropdown */
.download-dropdown {
    position: relative;
    display: inline-block;
}

.download-dropdown .download-main {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    padding-right: 2.5rem;
}

.download-dropdown .download-main .fa-chevron-down {
    position: absolute;
    right: 1rem;
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.download-dropdown:hover .download-main .fa-chevron-down {
    transform: rotate(180deg);
}

.download-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.05);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    min-width: 250px;
    margin-top: 0.5rem;
}

.download-dropdown:hover .download-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.download-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    text-decoration: none;
    color: #333;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.download-option:last-child {
    border-bottom: none;
}

.download-option:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.download-option i {
    font-size: 1.5rem;
    width: 2rem;
    text-align: center;
    color: #667eea;
}

.download-option .option-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.download-option .option-title {
    font-weight: 600;
    font-size: 0.95rem;
}

.download-option .option-desc {
    font-size: 0.8rem;
    color: #666;
    opacity: 0.8;
    padding-left: 10px;
}

.download-option:hover .option-desc {
    color: #333;
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #667eea;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .overview-grid,
    .features-grid,
    .quick-start-grid {
        grid-template-columns: 1fr;
    }
}

/* Page-specific styles */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-content {
    padding: 80px 0;
    background: white;
}

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
    border-bottom: 3px solid #667eea;
    padding-bottom: 0.5rem;
}

.content-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #555;
}

.content-section p {
    margin-bottom: 1rem;
    color: #666;
}

.code-block {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    padding: 1rem;
    margin: 1rem 0;
    font-family: 'Courier New', monospace;
    overflow-x: auto;
}

.parameter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.parameter-card {
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.parameter-card h4 {
    color: #667eea;
    margin-bottom: 0.5rem;
}

.parameter-card .category {
    background: #667eea;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.parameter-card .description {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.parameter-card .registry-path {
    background: #f8f9fa;
    padding: 0.5rem;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: #333;
    word-break: break-all;
}

/* Table styles */
.table-container {
    overflow-x: auto;
    margin: 2rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

th {
    background: #667eea;
    color: white;
    font-weight: 600;
}

tr:hover {
    background: #f8f9fa;
}

/* Alert styles */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin: 1rem 0;
    border-left: 4px solid;
}

.alert-info {
    background: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

.alert-warning {
    background: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

.alert-success {
    background: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

/* Tool Overview OS Toggle */
.overview-toggle { display: flex; justify-content: center; margin: 0px 0 56px; }
.overview-toggle .switch {
    position: relative; display: grid; grid-template-columns: 1fr 1fr; align-items: center;
    padding: 8px; border-radius: 999px; column-gap: 0;
    background: #ffffff; border: 1px solid #e9ecef;
    overflow: hidden;
    width: min(350px, 100%);
}
.overview-toggle .ov-slider {
    position: absolute; top: 7px; left: 7px; height: calc(100% - 14px);
    width: calc(50% - 8px); border-radius: 999px;
    background: #667eea; /* brand blue */
    transition: transform 220ms ease;
    will-change: transform;
}
.overview-toggle .switch.is-linux .ov-slider { transform: translateX(100%); }
.overview-toggle .ov-btn {
    position: relative; z-index: 1;
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    width: 100%; padding: 14px 24px; border-radius: 999px; border: 0; cursor: pointer;
    background: transparent; color: #555; font-weight: 700; font-size: 18px;
    letter-spacing: 0.2px; transition: color 160ms ease;
}
.overview-toggle .ov-btn:hover { color: #222; }
.overview-toggle .ov-btn:focus-visible { outline: 2px solid rgba(102,126,234,0.4); outline-offset: 2px; border-radius: 999px; }
.overview-toggle .ov-btn i { font-size: 20px; }
.overview-toggle .ov-btn.active { color: #ffffff; }

/* Smooth show/hide for overview sections */
.ov-section { display: none; opacity: 0; transition: opacity 220ms ease; }
.ov-section.visible { display: block; opacity: 1; }

/* Mobile responsive for download dropdown */
@media (max-width: 768px) {
    .download-dropdown-menu {
        min-width: 100%;
        left: 0;
        right: 0;
    }
}

/* Parameters Popup Styles */
.parameters-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    padding: 2rem;
}

.popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.popup-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 800px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    position: relative;
    animation: popupSlideIn 0.3s ease-out;
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(102, 126, 234, 0.1);
}

.popup-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.popup-header h2 i {
    color: #667eea;
    font-size: 1.25rem;
}

.popup-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #666;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.2s ease;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #333;
}

.popup-body {
    padding: 2rem;
    max-height: calc(80vh - 120px);
    overflow-y: auto;
}

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

.parameter-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
}

.parameter-item:hover {
    background: rgba(102, 126, 234, 0.05);
    border-color: rgba(102, 126, 234, 0.2);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.parameter-number {
    background: #667eea;
    color: white;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.parameter-content {
    flex: 1;
}

.parameter-name {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: #333;
    line-height: 1.4;
}

.parameter-subheading {
    margin: 0;
    font-size: 0.9rem;
    color: #666;
    line-height: 1.4;
    opacity: 0.8;
}

.parameter-subheading-section {
    margin-bottom: 2rem;
}

.parameter-subheading-title {
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    padding: 0.75rem 1rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 6px;
    border-left: 4px solid #667eea;
}

.parameter-subheading-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Mobile responsive for popup */
@media (max-width: 768px) {
    .parameters-popup {
        padding: 1rem;
    }
    
    .popup-content {
        max-height: 90vh;
    }
    
    .popup-header {
        padding: 1rem 1.5rem;
    }
    
    .popup-header h2 {
        font-size: 1.25rem;
    }
    
    .popup-body {
        padding: 1.5rem;
        max-height: calc(90vh - 100px);
    }
    
    .parameter-item {
        padding: 0.75rem;
        gap: 0.75rem;
    }
    
    .parameter-number {
        width: 1.75rem;
        height: 1.75rem;
        font-size: 0.8rem;
    }
    
    .parameter-name {
        font-size: 0.95rem;
    }
    
    .parameter-subheading {
        font-size: 0.85rem;
    }
}