/* ===== CSS Variables ===== */
:root {
    --bg-dark: #0A0F1F;
    --bg-darker: #060a14;
    --electric-blue: #00BFFF;
    --cerulean: #1E90FF;
    --cyan-glow: #0FF;
    --soft-purple: #A78BFA;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B8D4;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* ===== Background Effects ===== */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 191, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(167, 139, 250, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(30, 144, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    background: rgba(10, 15, 31, 0.8);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--electric-blue);
    transition: width 0.3s ease;
}

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--electric-blue);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 20px 80px;
}

.hero-container {
    text-align: center;
    max-width: 900px;
}

.floating-avatar {
    margin-bottom: 3rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.avatar-circle {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    padding: 4px;
    box-shadow: 
        0 0 40px rgba(0, 191, 255, 0.4),
        0 0 80px rgba(167, 139, 250, 0.2);
    position: relative;
}

.avatar-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    animation: fadeInUp 1s ease 0.4s backwards;
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s backwards;
}

/* ===== Buttons ===== */
.btn {
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--electric-blue), var(--cerulean));
    color: var(--text-primary);
    box-shadow: 0 8px 32px rgba(0, 191, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 48px rgba(0, 191, 255, 0.5);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--electric-blue);
    box-shadow: 0 8px 32px rgba(0, 191, 255, 0.2);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: linear-gradient(to bottom, var(--electric-blue), transparent);
}

/* ===== Section Styles ===== */
section {
    padding: 100px 20px;
    position: relative;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--electric-blue), transparent);
    border-radius: 2px;
}

/* ===== About Section ===== */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-intro {
    font-size: 1.2rem !important;
    color: var(--text-primary) !important;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 191, 255, 0.2);
    border-color: var(--electric-blue);
}

.stat-card h3 {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== Experience Timeline ===== */
.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--electric-blue), var(--soft-purple));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 3rem;
}

.timeline-dot {
    position: absolute;
    left: -8px;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--electric-blue);
    box-shadow: 0 0 20px rgba(0, 191, 255, 0.6);
}

.timeline-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.timeline-card:hover {
    transform: translateX(10px);
    box-shadow: 0 20px 60px rgba(0, 191, 255, 0.2);
    border-color: var(--electric-blue);
}

.timeline-date {
    color: var(--electric-blue);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.timeline-card h4 {
    color: var(--soft-purple);
    margin-bottom: 1rem;
}

.timeline-list {
    list-style: none;
    margin-top: 1rem;
}

.timeline-list li {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    position: relative;
}

.timeline-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--electric-blue);
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skill-category {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 20px 60px rgba(0, 191, 255, 0.2);
    border-color: var(--electric-blue);
}

.category-title {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--electric-blue);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-item {
    background: rgba(0, 191, 255, 0.1);
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    border: 1px solid rgba(0, 191, 255, 0.2);
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: rgba(0, 191, 255, 0.2);
    border-color: var(--electric-blue);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 191, 255, 0.3);
}

/* ===== Projects Section ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-15px) rotateX(5deg);
    box-shadow: 0 30px 80px rgba(0, 191, 255, 0.3);
    border-color: var(--electric-blue);
}

.project-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tags span {
    background: rgba(167, 139, 250, 0.1);
    color: var(--soft-purple);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    border: 1px solid rgba(167, 139, 250, 0.2);
}

.project-link {
    color: var(--electric-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--cyan-glow);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* ===== Certifications Section ===== */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cert-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(167, 139, 250, 0.2);
    border-color: var(--soft-purple);
}

.cert-badge {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--electric-blue), var(--soft-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    box-shadow: 0 0 30px rgba(0, 191, 255, 0.4);
}

.cert-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.cert-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Contact Section ===== */
.contact-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 191, 255, 0.2);
    border-color: var(--electric-blue);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-item a,
.contact-item p {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--electric-blue);
}

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

.social-link {
    flex: 1;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    color: var(--text-primary);
    text-decoration: none;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    font-weight: 600;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--electric-blue), var(--cerulean));
    border-color: var(--electric-blue);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 191, 255, 0.3);
}

.contact-form {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--electric-blue);
    box-shadow: 0 0 20px rgba(0, 191, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

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

.form-group textarea {
    resize: vertical;
}

.contact-form .btn-primary {
    width: 100%;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--glass-border);
    padding: 3rem 20px;
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(10, 15, 31, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        border-top: 1px solid var(--glass-border);
        backdrop-filter: blur(20px);
    }

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

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .social-links {
        flex-direction: column;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .avatar-circle {
        width: 140px;
        height: 140px;
    }

    .avatar-inner {
        font-size: 2rem;
    }

    .skills-grid,
    .projects-grid,
    .cert-grid {
        grid-template-columns: 1fr;
    }

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