:root {
    --bg-dark: #0A0A0C;
    --bg-card: #13131A;
    --accent-neon: #00ffcc;
    --accent-purple: #7000ff;
    --text-main: #F3F4F6;
    --text-muted: #9CA3AF;
    --border-color: #22222F;
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
    --bg-dark: #F9FAFB;
    --bg-card: #FFFFFF;
    --accent-neon: #00b395;
    --accent-purple: #5200cc;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border-color: #E5E7EB;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    overflow-x: hidden;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.mouse-glow-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 255, 204, 0.05) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 0;
    mix-blend-mode: screen;
}

[data-theme="light"] .mouse-glow-bg {
    background: radial-gradient(circle, rgba(112, 0, 255, 0.03) 0%, transparent 70%);
}

.mouse-follower-ring {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border: 2px solid var(--accent-neon);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9999;
    transition: width 0.3s, height 0.3s, background-color 0.3s, border-color 0.3s;
}

.mouse-follower-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    background-color: var(--accent-neon);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 10000;
}

.mouse-follower-ring.hovered {
    width: 60px;
    height: 60px;
    background-color: rgba(0, 255, 204, 0.1);
    border-color: var(--accent-purple);
}

[data-theme="light"] .mouse-follower-ring.hovered {
    background-color: rgba(112, 0, 255, 0.08);
}

section {
    padding: 120px 5%;
    max-width: 1300px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-neon), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-neon), #00e6b8);
    color: #000;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 255, 204, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-main);
}

/* Premium CV Button */
.btn-cv {
    display: inline-flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-cv::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-neon));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

.btn-cv:hover::before {
    opacity: 1;
}

.btn-cv:hover {
    transform: translateY(-3px);
    border-color: transparent;
    box-shadow: 0 12px 24px rgba(112, 0, 255, 0.25);
}

.btn-cv-icon {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-neon));
    color: #fff;
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.btn-cv:hover .btn-cv-icon {
    background: rgba(255, 255, 255, 0.15);
}

.btn-cv-text {
    position: relative;
    z-index: 1;
    padding: 14px 24px;
    color: var(--text-main);
    transition: color 0.3s ease;
}

.btn-cv:hover .btn-cv-text {
    color: #fff;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 1200px;
    z-index: 1000;
    background: rgba(19, 19, 26, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease, border 0.3s ease;
}

[data-theme="light"] header {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
}

.nav-container {
    padding: 10px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
    font-style: italic;
}

.logo-img-frame {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--accent-neon);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-img-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 10px 14px;
    border-radius: 30px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.nav-links a i {
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: var(--transition-smooth);
}

.nav-links a:hover {
    color: var(--accent-neon);
}

.nav-links a:hover i {
    color: var(--accent-neon);
}

.nav-links a.active {
    background: rgba(0, 255, 204, 0.1);
    color: var(--accent-neon);
}

.nav-links a.active i {
    color: var(--accent-neon);
}

.btn-nav {
    border: 1px solid transparent;
}

.btn-nav.active {
    background: rgba(0, 255, 204, 0.1) !important;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-cart-btn {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.1rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    position: relative;
    transition: var(--transition-smooth);
}

.nav-cart-btn:hover {
    background: rgba(0, 255, 204, 0.1);
    color: var(--accent-neon);
    transform: translateY(-2px);
}

[data-theme="light"] .nav-cart-btn:hover {
    background: rgba(0, 179, 149, 0.1);
}

.nav-cart-btn::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 7px;
    height: 7px;
    background: var(--accent-purple);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent-purple);
}

.nav-theme-btn {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.1rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.nav-theme-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-neon);
}

[data-theme="light"] .nav-theme-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

.hero-section {
    padding-top: 180px;
    padding-bottom: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.badge {
    background: rgba(0, 255, 204, 0.06);
    border: 1px solid rgba(0, 255, 204, 0.2);
    color: var(--accent-neon);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: inline-block;
    margin-bottom: 25px;
}

.hero-content h1 {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 25px;
    letter-spacing: -1px;
}

.hero-content p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.hero-visual {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.profile-frame {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    z-index: 1;
}

.profile-border {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid transparent;
    background: linear-gradient(135deg, var(--accent-neon), var(--accent-purple)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask-composite: exclude;
    animation: borderRotate 8s linear infinite;
}

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

.profile-img {
    width: 90%;
    height: 90%;
    border-radius: 50%;
    object-fit: cover;
    z-index: 2;
    border: 8px solid var(--bg-dark);
    transition: border-color 0.3s ease;
}

.profile-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-neon) 0%, transparent 70%);
    opacity: 0.2;
    filter: blur(20px);
    z-index: 0;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.2; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.08); }
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(112, 0, 255, 0.4);
}

.icon-box {
    width: 55px;
    height: 55px;
    background: rgba(112, 0, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: var(--transition-smooth);
}

.icon-box i {
    color: var(--accent-purple);
    font-size: 1.5rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.service-card:hover .icon-box {
    background: var(--accent-purple);
    box-shadow: 0 0 15px rgba(112, 0, 255, 0.4);
}

.service-card:hover .icon-box i {
    color: #fff;
    transform: scale(1.2) rotate(10deg);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
}

.about-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 50px;
    align-items: center;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.about-card img {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
}

.about-content h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

.stat-item h4 {
    font-size: 2.2rem;
    color: var(--accent-neon);
    font-weight: 800;
}

.stat-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.education-timeline {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 35px;
    position: relative;
    transition: var(--transition-smooth);
}

.education-card:hover {
    border-color: var(--accent-neon);
    transform: translateX(5px);
}

.edu-year {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-neon);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.education-card h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.edu-institute {
    font-size: 1rem;
    color: var(--accent-purple);
    font-weight: 600;
    margin-bottom: 15px;
}

.education-card p {
    color: var(--text-muted);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 25px;
}

.skill-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition-smooth);
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.skill-item:hover {
    border-color: var(--accent-neon);
    box-shadow: 0 10px 20px rgba(0, 255, 204, 0.05);
    transform: translateY(-5px);
}

.skill-item:hover .skill-icon {
    transform: scale(1.25) translateY(-5px);
    filter: drop-shadow(0 5px 10px rgba(0, 255, 204, 0.3));
}

.skill-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
}

.portfolio-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.project-img-placeholder {
    height: 260px;
    background: linear-gradient(135deg, #161622, #1f1f30);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .project-img-placeholder {
    background: linear-gradient(135deg, #E5E7EB, #F3F4F6);
}

.project-icon {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
}

[data-theme="light"] .project-icon {
    color: rgba(0, 0, 0, 0.05);
}

.portfolio-item:hover .project-icon {
    color: var(--accent-neon);
    transform: scale(1.1);
}

.portfolio-info {
    padding: 30px;
}

.proj-category {
    color: var(--accent-purple);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-info h3 {
    font-size: 1.6rem;
    margin: 10px 0 15px 0;
}

.portfolio-info p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

.proj-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
}

.portfolio-item:hover .proj-link {
    color: var(--accent-neon);
}

.portfolio-item:hover .proj-link i {
    transform: translateX(5px);
}

.proj-link i {
    transition: transform 0.3s ease;
}

.contact-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 60px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    color: inherit;
}

.detail-item i {
    color: var(--accent-neon);
    font-size: 1.2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

[data-theme="light"] .form-group input, [data-theme="light"] .form-group textarea {
    background: rgba(0,0,0,0.02);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-neon);
    background: rgba(255,255,255,0.05);
}

.form-submit {
    border: none;
    cursor: pointer;
    justify-content: center;
}

footer {
    border-top: 1px solid var(--border-color);
    max-width: 1300px;
    margin: 0 auto;
    padding: 40px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.social-links a {
    color: var(--text-muted);
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.social-links a:hover {
    color: #000;
    background: var(--accent-neon);
    border-color: var(--accent-neon);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 20px rgba(0, 255, 204, 0.3);
}

.social-links a i {
    transition: transform 0.3s ease;
}

.social-links a:hover i {
    transform: scale(1.1);
}

@media (max-width: 1024px) {
    .nav-links {
        gap: 0;
    }
    .nav-links a {
        padding: 10px 10px;
        font-size: 0.8rem;
    }
}

@media (max-width: 992px) {
    header {
        width: 95%;
        top: 15px;
    }
    .hero-container, .about-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content p, .about-img-box {
        margin: 0 auto 40px auto;
    }
    .hero-btns, .about-stats {
        justify-content: center;
    }
    .hero-visual {
        justify-content: center;
        margin-top: 50px;
    }
    .profile-frame {
        width: 280px;
        height: 280px;
    }
    .contact-container {
        grid-template-columns: 1fr;
        padding: 40px;
        gap: 40px;
    }
    .mouse-glow-bg, .mouse-follower-ring, .mouse-follower-dot {
        display: none;
    }
}

@media (max-width: 768px) {
    header {
        border-radius: 25px;
    }
    .nav-container {
        padding: 12px 20px;
    }
    section {
        padding: 80px 5%;
    }
    .hero-content h1 {
        font-size: 2.8rem;
    }
    .hero-btns {
        flex-wrap: wrap;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    .menu-toggle {
        display: block;
    }
    .nav-links {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 90px);
        background: var(--bg-dark);
        flex-direction: column;
        padding: 40px 20px;
        gap: 15px;
        transition: 0.4s ease-in-out;
        border-radius: 20px;
        border: 1px solid var(--border-color);
        z-index: 999;
        overflow-y: auto;
    }
    .nav-links.active {
        left: 0;
    }
    .nav-links a {
        width: 100%;
        justify-content: center;
        border-radius: 10px;
    }
    footer {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}
.typing-text {
    font-size: 1.2rem;
    color: var(--accent-neon);
    border-right: 3px solid var(--accent-neon);
    white-space: nowrap;
    overflow: hidden;
    display: inline-block;
    min-height: 40px;
    padding-right: 5px;
    animation: blinkCursor 0.8s infinite;
}

@keyframes blinkCursor {
    50% {
        border-color: transparent;
    }
}
.hero-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0,255,204,0.12), transparent 70%);
    top: 10%;
    right: 0;
    filter: blur(80px);
    z-index: -1;
}

.hero-section::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(112,0,255,0.15), transparent 70%);
    bottom: 0;
    left: 0;
    filter: blur(100px);
    z-index: -1;
}
.service-card,
.skill-item,
.portfolio-item,
.education-card {
    backdrop-filter: blur(20px);
    background: rgba(255,255,255,0.03);
}
.skill-item:hover .fa-html5{
    filter: drop-shadow(0 0 12px #E34F26);
}

.skill-item:hover .fa-css3-alt{
    filter: drop-shadow(0 0 12px #1572B6);
}

.skill-item:hover .fa-js{
    filter: drop-shadow(0 0 12px #F7DF1E);
}

.skill-item:hover .fa-python{
    filter: drop-shadow(0 0 12px #3776AB);
}

.skill-item:hover .fa-git-alt{
    filter: drop-shadow(0 0 12px #F05032);
}

.skill-item:hover .fa-github{
    filter: drop-shadow(0 0 12px var(--accent-neon));
}

#progressBar{
    position:fixed;
    top:0;
    left:0;
    width:0%;
    height:4px;
    background:linear-gradient(90deg,var(--accent-neon),var(--accent-purple));
    z-index:99999;
}
#matrixCanvas{
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
z-index:-2;
pointer-events:none;
opacity:.18;
display:block;
}