:root {
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
    --bg-dark: #0a0f1a;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --bg-glass: rgba(17, 24, 39, 0.8);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-gradient: linear-gradient(135deg, var(--primary-400) 0%, var(--primary-600) 100%);
    --accent-glow: 0 0 30px rgba(14, 165, 233, 0.3);
    --section-padding: 100px 0;
    --container-width: 1200px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 0;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-normal);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-900) 100%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 120px 24px;
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-greeting {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--primary-400);
    margin-bottom: 16px;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.hero-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-300);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-shape {
    width: 400px;
    height: 400px;
    background: var(--accent-gradient);
    border-radius: 50%;
    position: absolute;
    filter: blur(80px);
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

.hero-icon {
    width: 200px;
    height: 200px;
    background: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(14, 165, 233, 0.3);
    box-shadow: var(--accent-glow);
    position: relative;
    z-index: 1;
    animation: float 6s ease-in-out infinite;
}

.hero-icon i {
    font-size: 5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: bounce 2s ease-in-out infinite;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--primary-400);
    background: rgba(14, 165, 233, 0.1);
}

.section {
    padding: var(--section-padding);
    position: relative;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-full);
    color: var(--primary-400);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-card) 50%, var(--bg-dark) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    color: var(--text-secondary);
}

.about-intro {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-text strong {
    color: var(--primary-400);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: var(--accent-glow);
}

.stat-icon {
    width: 60px;
    height: 60px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.stat-icon i {
    font-size: 1.5rem;
    color: var(--primary-400);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.projects {
    background: var(--bg-dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: rgba(14, 165, 233, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.project-icon {
    width: 70px;
    height: 70px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.project-icon i {
    font-size: 1.8rem;
    color: var(--primary-400);
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 6px 14px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--primary-300);
}

.development {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--primary-900) 50%, var(--bg-dark) 100%);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-400) 0%, var(--primary-700) 100%);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    width: 140px;
    padding: 10px 20px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    width: calc(50% - 80px);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: var(--transition-normal);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
}

.timeline-content:hover {
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: var(--accent-glow);
}

.timeline-icon {
    width: 50px;
    height: 50px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.timeline-icon i {
    font-size: 1.3rem;
    color: var(--primary-400);
}

.timeline-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.timeline-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    color: var(--primary-400);
    font-size: 0.9rem;
    font-weight: 500;
}

.timeline-link:hover {
    color: var(--primary-300);
}

.history {
    background: var(--bg-dark);
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.history-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: var(--transition-normal);
}

.history-card:hover {
    transform: translateY(-5px);
    border-color: rgba(14, 165, 233, 0.2);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.history-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.company-logo {
    width: 60px;
    height: 60px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.company-logo i {
    font-size: 1.5rem;
    color: var(--primary-400);
}

.company-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.company-info .role {
    font-size: 0.9rem;
    color: var(--primary-300);
}

.history-date {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.history-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.skills {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-card) 100%);
}

.skills-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.skills-category {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 30px;
}

.skills-category h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.skills-category h3 i {
    color: var(--primary-400);
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.skill-info span:first-child {
    color: var(--text-primary);
    font-weight: 500;
}

.skill-info span:last-child {
    color: var(--primary-400);
}

.skill-bar {
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1.5s ease;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    padding: 10px 18px;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    color: var(--primary-300);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: rgba(14, 165, 233, 0.2);
    border-color: var(--primary-400);
    transform: translateY(-2px);
}

.contact {
    background: var(--bg-dark);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.contact-info p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 30px;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.contact-link:hover {
    border-color: rgba(14, 165, 233, 0.3);
    background: var(--bg-card-hover);
}

.contact-link i {
    font-size: 1.3rem;
    color: var(--primary-400);
}

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

.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-400);
    background: rgba(14, 165, 233, 0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group label {
    position: absolute;
    top: -10px;
    left: 16px;
    background: var(--bg-card);
    padding: 0 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
    opacity: 0;
    transition: var(--transition-fast);
}

.form-group input:focus+label,
.form-group textarea:focus+label,
.form-group input:not(:placeholder-shown)+label,
.form-group textarea:not(:placeholder-shown)+label {
    opacity: 1;
    color: var(--primary-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    align-self: flex-start;
}

.footer {
    background: var(--bg-card);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--primary-400);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.footer-social a:hover {
    background: var(--accent-gradient);
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 100;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.4);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.3;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.4;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .skills-content {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-date {
        left: 20px;
        transform: none;
    }

    .timeline-content {
        width: calc(100% - 60px);
        margin-left: auto !important;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-card);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        transition: var(--transition-normal);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        padding-top: 140px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-icon {
        width: 150px;
        height: 150px;
    }

    .hero-icon i {
        font-size: 3.5rem;
    }

    .history-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 20px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .contact-form-wrapper {
        padding: 24px;
    }
}

/* ===========================
   Loading Overlay
   =========================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-circle {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--primary-400);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-circle::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 3px solid transparent;
    border-top-color: var(--primary-600);
    border-radius: 50%;
    animation: spin 0.8s linear reverse infinite;
}

.loader-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* ===========================
   3D Tilt Effect
   =========================== */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.tilt-card .project-icon,
.tilt-card .project-title,
.tilt-card .project-description {
    transform: translateZ(30px);
}

/* ===========================
   Glowing Border Effect
   =========================== */
.glow-border {
    position: relative;
}

.glow-border::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--primary-400), var(--primary-600), var(--primary-400));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
    filter: blur(8px);
}

.glow-border:hover::after {
    opacity: 1;
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {

    0%,
    100% {
        opacity: 0.5;
        filter: blur(8px);
    }

    50% {
        opacity: 1;
        filter: blur(12px);
    }
}

/* ===========================
   Animated Gradient Background
   =========================== */
.hero {
    background: linear-gradient(-45deg, var(--bg-dark), var(--primary-900), var(--bg-dark), var(--primary-800));
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* ===========================
   Ripple Effect
   =========================== */
.btn {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: rippleEffect 0.6s linear;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===========================
   Staggered Animations
   =========================== */
.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item:nth-child(1) {
    transition-delay: 0ms;
}

.stagger-item:nth-child(2) {
    transition-delay: 100ms;
}

.stagger-item:nth-child(3) {
    transition-delay: 200ms;
}

.stagger-item:nth-child(4) {
    transition-delay: 300ms;
}

.stagger-item:nth-child(5) {
    transition-delay: 400ms;
}

.stagger-item:nth-child(6) {
    transition-delay: 500ms;
}

/* ===========================
   Typewriter Effect
   =========================== */
.typewriter {
    overflow: hidden;
    border-right: 3px solid var(--primary-400);
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

@keyframes blink-caret {

    from,
    to {
        border-color: transparent;
    }

    50% {
        border-color: var(--primary-400);
    }
}

/* ===========================
   Enhanced Card Hover Effects
   =========================== */
.project-card {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        box-shadow 0.3s ease,
        border-color 0.3s ease;
}

.project-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 50px rgba(14, 165, 233, 0.2);
}

.history-card {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        box-shadow 0.3s ease;
}

.history-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.15);
}

/* ===========================
   Icon Animations
   =========================== */
.project-icon i,
.stat-icon i,
.company-logo i,
.timeline-icon i {
    transition: transform 0.3s ease;
}

.project-card:hover .project-icon i,
.stat-card:hover .stat-icon i,
.history-card:hover .company-logo i,
.timeline-content:hover .timeline-icon i {
    transform: scale(1.2) rotate(5deg);
}

/* ===========================
   Tag Hover Animations
   =========================== */
.tag {
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(14, 165, 233, 0.3);
    transform: translateY(-2px) scale(1.05);
}

.skill-tag {
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.skill-tag:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 20px rgba(14, 165, 233, 0.2);
}

/* ===========================
   Section Reveal Animations
   =========================== */
.section-header {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section-header.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Active Nav Link
   =========================== */
.nav-link.active {
    color: var(--primary-400);
}

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