/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f59e0b;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --dark-bg: #0f172a;
    --dark-surface: #1e293b;
    --dark-card: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-img {
    height: 52px;
    width: auto;
    object-fit: contain;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--dark-bg);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255, 255, 255, 0.1), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255, 255, 255, 0.05), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255, 255, 255, 0.1), transparent);
    background-repeat: repeat;
    background-size: 100px 100px;
    animation: float 20s infinite linear;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4rem;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.hero-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.categories-section {
    background: var(--dark-surface);
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.category-card {
    background: var(--dark-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.category-card:hover::before {
    opacity: 0.05;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.category-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.category-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.category-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.project-count {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

/* Projects Section */
.projects-section {
    padding: 6rem 0;
    background: var(--dark-bg);
}

/* Filter Controls */
.filter-controls {
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--dark-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-input,
.category-filter,
.sort-filter {
    padding: 0.75rem 1rem;
    background: var(--dark-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    min-width: 200px;
}

.search-input {
    flex: 1;
    min-width: 250px;
}

.search-input:focus,
.category-filter:focus,
.sort-filter:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.category-filter,
.sort-filter {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23cbd5e1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

.search-input::placeholder {
    color: var(--text-muted);
}

#clearFilters {
    padding: 0.75rem 1.5rem;
    white-space: nowrap;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.project-card {
    background: var(--dark-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.project-thumbnail {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    position: relative;
    overflow: hidden;
    background: var(--gradient-secondary);
}

/* Category-specific gradients - More vibrant and dynamic */
.project-thumbnail.data-apis {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    animation: gradientShift 6s ease-in-out infinite;
}

.project-thumbnail.ai-ml {
    background: linear-gradient(135deg, #ff006e 0%, #8338ec 50%, #3a86ff 100%);
    animation: gradientShift 7s ease-in-out infinite;
}

.project-thumbnail.media-entertainment {
    background: linear-gradient(135deg, #ff006e 0%, #fb5607 50%, #ffbe0b 100%);
    animation: gradientShift 8s ease-in-out infinite;
}

.project-thumbnail.finance-economics {
    background: linear-gradient(135deg, #06ffa5 0%, #00d4aa 50%, #0077b6 100%);
    animation: gradientShift 5s ease-in-out infinite;
}

.project-thumbnail.science-research {
    background: linear-gradient(135deg, #ff4081 0%, #e91e63 50%, #9c27b0 100%);
    animation: gradientShift 9s ease-in-out infinite;
}

.project-thumbnail.geography-weather {
    background: linear-gradient(135deg, #00bcd4 0%, #2196f3 50%, #3f51b5 100%);
    animation: gradientShift 6.5s ease-in-out infinite;
}

.project-thumbnail.development-tools {
    background: linear-gradient(135deg, #ff5722 0%, #ff9800 50%, #ffc107 100%);
    animation: gradientShift 7.5s ease-in-out infinite;
}

.project-thumbnail.social-web {
    background: linear-gradient(135deg, #e91e63 0%, #ff5722 50%, #ff9800 100%);
    animation: gradientShift 8.5s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-size: 200% 200%;
        background-position: 0% 50%;
    }
    50% {
        background-size: 200% 200%;
        background-position: 100% 50%;
    }
}

@keyframes floatingElements {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-10px) rotate(2deg);
    }
    66% {
        transform: translateY(5px) rotate(-1deg);
    }
}

.project-thumbnail::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4) 0%, transparent 60%),
        radial-gradient(circle at 70% 70%, rgba(255,255,255,0.3) 0%, transparent 60%),
        radial-gradient(circle at 50% 20%, rgba(255,255,255,0.2) 0%, transparent 40%),
        linear-gradient(45deg, rgba(255,255,255,0.1) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.1) 75%);
    background-size: 100% 100%, 100% 100%, 100% 100%, 25px 25px;
    background-position: 0 0, 0 0, 0 0, 0 0;
    animation: floatingElements 4s ease-in-out infinite;
}

.project-thumbnail::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.3) 0%, transparent 100%);
}

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

@keyframes iconGlow {
    0%, 100% {
        filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3)) drop-shadow(0 0 20px rgba(255,255,255,0.2));
    }
    50% {
        filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4)) drop-shadow(0 0 30px rgba(255,255,255,0.4));
    }
}

.project-thumbnail i {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3)) drop-shadow(0 0 20px rgba(255,255,255,0.2));
    transition: var(--transition);
    animation: iconPulse 3s ease-in-out infinite;
}

/* Project Image Styles */
.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: var(--transition);
    border-radius: 0;
}

.project-thumbnail.has-image {
    background: none;
    animation: none;
    overflow: hidden;
    position: relative;
}

.project-thumbnail.has-image::before {
    display: none;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(99, 102, 241, 0.8) 0%,
        rgba(139, 92, 246, 0.8) 50%,
        rgba(6, 182, 212, 0.8) 100%
    );
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.project-overlay-content {
    text-align: center;
    transform: translateY(20px);
    transition: var(--transition);
}

.overlay-icon {
    font-size: 2.5rem;
    color: white;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
    animation: none !important;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card:hover .project-overlay-content {
    transform: translateY(0);
}

.project-card:hover .project-image {
    transform: scale(1.1);
}

.project-thumbnail.has-image:hover {
    animation: none;
}

/* Ensure consistent sizing for both image and icon thumbnails */
.project-thumbnail.has-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-thumbnail.has-image .project-overlay {
    border-radius: 0;
}

.project-card:hover .project-thumbnail i {
    transform: scale(1.2);
    animation: iconGlow 1.5s ease-in-out infinite;
}

.project-card:hover .project-thumbnail {
    animation-duration: 2s;
}

.project-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.875rem;
    line-height: 1.5;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: auto;
    padding-top: 1rem;
}

.project-actions .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    flex: 1;
    text-align: center;
    justify-content: center;
}

.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.load-more-container .btn {
    min-width: 200px;
    font-weight: 600;
    transition: var(--transition);
}

.load-more-container .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Developer Section */
.developer-section {
    padding: 6rem 0;
    background: var(--dark-surface);
    position: relative;
    overflow: hidden;
}

.developer-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Developer Profile */
.developer-profile {
    margin-bottom: 6rem;
}

.developer-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.developer-text {
    z-index: 2;
}

.developer-intro {
    margin-bottom: 2rem;
}

.developer-greeting {
    color: var(--primary-color);
    font-size: 1.125rem;
    font-weight: 500;
    display: block;
    margin-bottom: 0.5rem;
}

.developer-name {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.developer-role {
    color: var(--text-secondary);
    font-size: 1.25rem;
    font-weight: 500;
}

.developer-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.developer-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.skill-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: var(--transition);
}

.skill-tag:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

.developer-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.developer-image {
    position: relative;
    z-index: 2;
}

.image-container {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: var(--gradient-primary);
    padding: 4px;
}

.profile-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 16px;
    transition: var(--transition);
}

.image-overlay {
    position: absolute;
    inset: 4px;
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), transparent 50%, rgba(139, 92, 246, 0.1));
    border-radius: 16px;
    pointer-events: none;
    transition: var(--transition);
}

.image-container:hover .profile-img {
    transform: scale(1.05);
}

.image-container:hover .image-overlay {
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.2), transparent 50%, rgba(139, 92, 246, 0.2));
}

/* Mentor Profile */
.mentor-profile {
    margin-bottom: 6rem;
}

.mentor-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.mentor-image {
    position: relative;
    z-index: 2;
}

.mentor-text {
    z-index: 2;
}

.mentor-intro {
    margin-bottom: 2rem;
}

.mentor-badge {
    background: var(--gradient-secondary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1rem;
}

.mentor-name {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.mentor-role {
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 500;
}

.mentor-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.mentor-expertise {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.expertise-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--dark-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.expertise-item:hover {
    border-color: var(--primary-color);
    transform: translateX(10px);
}

.expertise-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    min-width: 24px;
}

.expertise-item span {
    font-weight: 500;
    color: var(--text-primary);
}

/* Mentor Social Links */
.mentor-social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.mentor-social-links .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: var(--dark-surface);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.mentor-social-links .social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.mentor-social-links .social-link i {
    font-size: 1.2rem;
}

/* Services Section */
.services-grid {
    margin-top: 4rem;
}

.services-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.services-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--dark-surface);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover::before {
    opacity: 0.05;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 1;
}

.service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background: var(--dark-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.about-features {
    display: grid;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.feature-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.about-stats-detailed {
    display: grid;
    gap: 1.5rem;
}

.stat-card {
    display: flex;
    gap: 1rem;
    align-items: center;
    background: var(--dark-surface);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.stat-info .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-info .stat-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background: var(--dark-surface);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-methods {
    display: grid;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-method h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-method p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.contact-method p a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.contact-method p a:hover {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
    transform: translateY(-1px);
}

.contact-form {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: var(--dark-surface);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    resize: vertical;
}

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23cbd5e1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: left 0.75rem center;
    background-size: 1rem;
    padding-left: 2.5rem;
    padding-right: 0.75rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Form Status */
.form-status {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    text-align: center;
}

.form-status.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-status.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.form-status.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Button Loading State */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn .spinner {
    display: inline-block;
    width: 1em;
    height: 1em;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Form Validation Styles */
.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
    border-color: var(--error-color);
    background-color: rgba(239, 68, 68, 0.05);
}

.form-group input.valid,
.form-group select.valid,
.form-group textarea.valid {
    border-color: var(--success-color);
    background-color: rgba(16, 185, 129, 0.05);
}

.form-error {
    color: var(--error-color);
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: block;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-logo .logo-img {
    height: 52px;
    width: auto;
    object-fit: contain;
}

.footer-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--dark-surface);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.footer-section h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-item {
    background: var(--dark-surface);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--primary-color);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.loading-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-stats {
        flex-direction: row;
        justify-content: center;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .developer-content,
    .mentor-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .mentor-content {
        grid-template-areas: 
            "text"
            "image";
    }
    
    .mentor-image {
        grid-area: image;
    }
    
    .mentor-text {
        grid-area: text;
    }
    
    .mentor-social-links {
        justify-content: center;
        margin-top: 1.5rem;
        padding-top: 1.5rem;
    }
    
    .services-container {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
    }
    
    .filter-controls {
        flex-direction: column;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .logo-img {
        height: 50px;
    }
    
    .footer-logo .logo-img {
        height: 50px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
    }
    
    .project-actions {
        flex-direction: column;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .developer-name {
        font-size: 2rem;
    }
    
    .mentor-name {
        font-size: 2rem;
    }
    
    .services-title {
        font-size: 2rem;
    }
    
    .profile-img {
        height: 300px;
    }
    
    .developer-actions {
        justify-content: center;
    }
    
    .mentor-social-links {
        justify-content: center;
        gap: 0.8rem;
    }
    
    .mentor-social-links .social-link {
        width: 40px;
        height: 40px;
    }
    
    .services-container {
        grid-template-columns: 1fr;
    }
    
    .logo-img {
        height: 45px;
    }
    
    .footer-logo .logo-img {
        height: 45px;
    }
}

/* Advanced Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0px);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
        filter: blur(8px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
        filter: blur(0px);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
        filter: blur(8px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
        filter: blur(0px);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-60px);
        filter: blur(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0px);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
        filter: blur(5px);
    }
    to {
        opacity: 1;
        transform: scale(1);
        filter: blur(0px);
    }
}

@keyframes slideInRotate {
    from {
        opacity: 0;
        transform: translateY(50px) rotate(-5deg);
        filter: blur(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotate(0deg);
        filter: blur(0px);
    }
}

@keyframes zoomBlur {
    from {
        opacity: 0;
        transform: scale(1.1);
        filter: blur(15px);
    }
    to {
        opacity: 1;
        transform: scale(1);
        filter: blur(0px);
    }
}

@keyframes flipIn {
    from {
        opacity: 0;
        transform: perspective(400px) rotateY(90deg);
        filter: blur(5px);
    }
    to {
        opacity: 1;
        transform: perspective(400px) rotateY(0deg);
        filter: blur(0px);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(50px);
        filter: blur(10px);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05) translateY(-10px);
        filter: blur(2px);
    }
    70% {
        opacity: 0.9;
        transform: scale(0.95) translateY(5px);
        filter: blur(1px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
        filter: blur(0px);
    }
}

@keyframes textReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
        filter: blur(5px);
        background-position: 0% 50%;
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0px);
        background-position: 100% 50%;
    }
}

/* Animation Classes */
.animate-fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-scale-in {
    animation: scaleIn 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-slide-rotate {
    animation: slideInRotate 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-zoom-blur {
    animation: zoomBlur 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-flip-in {
    animation: flipIn 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-bounce-in {
    animation: bounceIn 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.animate-text-reveal {
    animation: textReveal 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

/* Scroll Trigger States */
.scroll-element {
    opacity: 0;
    transform: translateY(50px);
    filter: blur(5px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-element.animate {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0px);
}

/* Staggered Animation Delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }
.stagger-7 { animation-delay: 0.7s; }
.stagger-8 { animation-delay: 0.8s; }

/* Parallax Elements */
.parallax-element {
    will-change: transform;
    transition: transform 0.1s ease-out;
}

/* Section Transitions */
section {
    position: relative;
    overflow: hidden;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.8s ease-in-out;
    z-index: 1;
    pointer-events: none;
}

section.section-visible::before {
    left: 100%;
}

/* Enhanced Blur Effects */
.blur-in {
    filter: blur(20px);
    opacity: 0;
    transform: scale(1.1);
    transition: all 1s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.blur-in.active {
    filter: blur(0px);
    opacity: 1;
    transform: scale(1);
}

/* Morphing Background */
@keyframes morphBackground {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
}

.morphing-bg {
    position: absolute;
    width: 200%;
    height: 200%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: morphBackground 8s ease-in-out infinite;
    top: -50%;
    left: -50%;
    z-index: -1;
}

/* Glitch Effect */
@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
    100% {
        transform: translate(0);
    }
}

.glitch-effect {
    position: relative;
}

.glitch-effect::before,
.glitch-effect::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch-effect::before {
    animation: glitch 0.3s infinite;
    color: #ff006e;
    z-index: -1;
}

.glitch-effect::after {
    animation: glitch 0.3s infinite reverse;
    color: #06b6d4;
    z-index: -2;
}

/* Particle System */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.7;
    animation: particleFloat 15s infinite linear;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.7;
    }
    90% {
        opacity: 0.7;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* Loading Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* Magnetic Effect */
.magnetic {
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.magnetic:hover {
    transform: scale(1.05);
}

/* 3D Animated Background */
.background-3d {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
    overflow: hidden;
    perspective: 1000px;
}

.floating-cube {
    position: absolute;
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 8px;
    animation: floatCube 20s infinite linear;
    transform-style: preserve-3d;
}

.floating-cube::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, rgba(139, 92, 246, 0.05), rgba(6, 182, 212, 0.05));
    border: 1px solid rgba(139, 92, 246, 0.1);
    border-radius: 8px;
    transform: translateZ(-20px);
}

.floating-cube::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, rgba(6, 182, 212, 0.08), rgba(99, 102, 241, 0.08));
    border: 1px solid rgba(6, 182, 212, 0.15);
    border-radius: 8px;
    transform: translateZ(20px);
}

@keyframes floatCube {
    0% {
        transform: translateY(100vh) rotateX(0deg) rotateY(0deg) rotateZ(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotateX(360deg) rotateY(360deg) rotateZ(180deg);
        opacity: 0;
    }
}

.geometric-shape {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1), transparent);
    animation: geometricFloat 15s infinite ease-in-out;
    transform-style: preserve-3d;
}

@keyframes geometricFloat {
    0%, 100% {
        transform: translateY(0) rotateX(0deg) rotateY(0deg) scale(1);
    }
    25% {
        transform: translateY(-50px) rotateX(90deg) rotateY(90deg) scale(1.1);
    }
    50% {
        transform: translateY(-100px) rotateX(180deg) rotateY(180deg) scale(0.9);
    }
    75% {
        transform: translateY(-50px) rotateX(270deg) rotateY(270deg) scale(1.1);
    }
}

.wave-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(99, 102, 241, 0.03) 0%, 
        rgba(139, 92, 246, 0.03) 25%, 
        rgba(6, 182, 212, 0.03) 50%, 
        rgba(139, 92, 246, 0.03) 75%, 
        rgba(99, 102, 241, 0.03) 100%);
    background-size: 400% 400%;
    animation: waveGradient 8s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes waveGradient {
    0%, 100% {
        background-position: 0% 50%;
        transform: rotateX(0deg);
    }
    25% {
        background-position: 100% 0%;
        transform: rotateX(5deg);
    }
    50% {
        background-position: 100% 100%;
        transform: rotateX(0deg);
    }
    75% {
        background-position: 0% 100%;
        transform: rotateX(-5deg);
    }
}

.spiral-element {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(99, 102, 241, 0.6);
    border-radius: 50%;
    animation: spiral 12s infinite linear;
    transform-style: preserve-3d;
}

@keyframes spiral {
    0% {
        transform: translateY(100vh) rotateZ(0deg) translateX(0px) rotateY(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotateZ(720deg) translateX(200px) rotateY(360deg);
        opacity: 0;
    }
}

.mesh-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.1) 1px, transparent 1px);
    background-size: 100px 100px;
    animation: meshMove 20s infinite linear;
    transform-style: preserve-3d;
}

@keyframes meshMove {
    0% {
        transform: translateX(0) translateY(0) rotateX(0deg);
        background-position: 0 0;
    }
    100% {
        transform: translateX(-100px) translateY(-100px) rotateX(360deg);
        background-position: -100px -100px;
    }
}

.orb-3d {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, 
        rgba(99, 102, 241, 0.3), 
        rgba(139, 92, 246, 0.2), 
        rgba(6, 182, 212, 0.1));
    animation: orbitFloat 25s infinite ease-in-out;
    transform-style: preserve-3d;
    filter: blur(1px);
}

@keyframes orbitFloat {
    0% {
        transform: translateX(0) translateY(0) rotateY(0deg) rotateX(0deg) translateZ(0);
    }
    25% {
        transform: translateX(200px) translateY(-100px) rotateY(90deg) rotateX(45deg) translateZ(50px);
    }
    50% {
        transform: translateX(0) translateY(-200px) rotateY(180deg) rotateX(90deg) translateZ(0);
    }
    75% {
        transform: translateX(-200px) translateY(-100px) rotateY(270deg) rotateX(135deg) translateZ(-50px);
    }
    100% {
        transform: translateX(0) translateY(0) rotateY(360deg) rotateX(180deg) translateZ(0);
    }
}

/* Scroll Progress Indicator */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 9999;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }