:root {
    /* Dark Theme Default */
    --bg-color: #061f10; /* Dark forest green */
    --text-primary: #ffffff;
    --text-secondary: #a0c2a5;
    --primary-color: #2ee59d;
    --accent-color: #ffd166; /* Vibrant accent matching green */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --btn-hover: rgba(46, 229, 157, 0.2);
}

[data-theme="light"] {
    /* Light Theme */
    --bg-color: #d1ffd6; /* Light mint green */
    --text-primary: #0a331a; 
    --text-secondary: #2b5e3d;
    --primary-color: #008744;
    --accent-color: #ff9f1c;
    --glass-bg: rgba(255, 255, 255, 0.4);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    --btn-hover: rgba(0, 135, 68, 0.1);
}

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

html {
    background-color: var(--bg-color);
    transition: background-color 0.5s ease;
}

body {
    position: relative;
    font-family: 'Outfit', sans-serif;
    background-color: transparent;
    color: var(--text-primary);
    overflow-x: hidden;
    scroll-behavior: smooth;
    transition: color 0.5s ease;
}

body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='200' height='200' xmlns='http://www.w3.org/2000/svg'%3E%3Cg stroke='%232ee59d' stroke-width='1.5' fill='none'%3E%3Cpath d='M0 40 L70 40 L70 80 L130 80 L130 40 L200 40'/%3E%3Cpath d='M0 160 L50 160 L50 120 L150 120 L150 160 L200 160'/%3E%3Cpath d='M40 0 L40 40'/%3E%3Cpath d='M160 0 L160 40'/%3E%3Cpath d='M40 200 L40 160'/%3E%3Cpath d='M160 200 L160 160'/%3E%3Cpath d='M100 80 L100 120'/%3E%3Cpath d='M70 80 L70 200'/%3E%3Cpath d='M130 0 L130 40'/%3E%3C/g%3E%3Cg stroke='%232ee59d' stroke-width='0.8' fill='none'%3E%3Cpath d='M0 100 L25 100'/%3E%3Cpath d='M175 100 L200 100'/%3E%3Cpath d='M0 20 L40 20'/%3E%3Cpath d='M160 180 L200 180'/%3E%3C/g%3E%3Cg fill='%232ee59d'%3E%3Ccircle cx='70' cy='40' r='3.5'/%3E%3Ccircle cx='130' cy='40' r='3.5'/%3E%3Ccircle cx='70' cy='80' r='3.5'/%3E%3Ccircle cx='130' cy='80' r='3.5'/%3E%3Ccircle cx='50' cy='160' r='3.5'/%3E%3Ccircle cx='150' cy='160' r='3.5'/%3E%3Ccircle cx='50' cy='120' r='3.5'/%3E%3Ccircle cx='150' cy='120' r='3.5'/%3E%3Ccircle cx='100' cy='80' r='3.5'/%3E%3Ccircle cx='100' cy='120' r='3.5'/%3E%3Ccircle cx='40' cy='40' r='3'/%3E%3Ccircle cx='160' cy='40' r='3'/%3E%3Ccircle cx='40' cy='160' r='3'/%3E%3Ccircle cx='160' cy='160' r='3'/%3E%3C/g%3E%3Cg fill='%232ee59d'%3E%3Crect x='17' y='93' width='10' height='14' rx='1.5'/%3E%3Crect x='173' y='93' width='10' height='14' rx='1.5'/%3E%3Crect x='33' y='13' width='14' height='10' rx='1.5'/%3E%3C/g%3E%3C/svg%3E");
    background-size: 200px 200px;
    opacity: 0.22;
    animation: circuitGlow 5s ease-in-out infinite alternate;
    z-index: -1;
    pointer-events: none;
}

@keyframes circuitGlow {
    0%   { opacity: 0.10; }
    100% { opacity: 0.40; }
}

[data-theme="light"] body::before {
    mix-blend-mode: multiply;
    animation: circuitGlowLight 5s ease-in-out infinite alternate;
}

@keyframes circuitGlowLight {
    0%   { opacity: 0.35; }
    100% { opacity: 0.70; }
}

@keyframes panGrid {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50px, -50px); }
}

/* Background Mesh Gradients */
.background-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    filter: blur(100px);
    opacity: 0.6;
    border-radius: 50%;
    animation: float 20s infinite alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--primary-color), transparent 70%);
    animation-delay: 0s;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-color), transparent 70%);
    animation-direction: alternate-reverse;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(10%, 15%) scale(1.1); }
}

/* Glassmorphism Common */
.glass-nav, .glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Navigation */
.glass-nav {
    position: fixed;
    top: 20px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 90%;
    max-width: 1200px;
    padding: 15px 30px;
    border-radius: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    transition: all 0.3s ease;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    background: linear-gradient(90deg, #fff, #a0a0a0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s, text-shadow 0.3s;
}

.nav-links a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Main Layout */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 100px 0;
}

/* Typography & Hero */
.hero {
    align-items: center;
    text-align: center;
}

/* Open to Work Badge */
.open-to-work {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--btn-hover);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 7px 16px;
    border-radius: 999px;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.otw-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--primary-color);
    display: inline-block;
    animation: dotPulse 1.4s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(46, 229, 157, 0.6); }
    50% { transform: scale(1.2); box-shadow: 0 0 0 6px rgba(46, 229, 157, 0); }
}

/* Stat icon SVG*/
.stat-icon {
    color: var(--primary-color);
}

.stat-icon svg {
    display: block;
}

.greeting {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 2px;
}

.name-header {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 5px;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.animate-name {
    animation: nameFloat 3s ease-in-out infinite alternate;
}

@keyframes nameFloat {
    0% {
        transform: translateY(0);
        text-shadow: 0 0 10px rgba(46, 229, 157, 0.2);
    }
    100% {
        transform: translateY(-5px);
        text-shadow: 0 0 20px rgba(46, 229, 157, 0.8), 0 0 30px var(--accent-color);
    }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 25px;
}

.gradient-text {
    background: linear-gradient(to right, var(--primary-color), var(--accent-color), #00ff87);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: shine 5s linear infinite;
}

@keyframes shine {
    to { background-position: 200% center; }
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
}

/* Buttons */
.btn {
    padding: 15px 35px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: inline-block;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #9d4edd);
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(123, 44, 191, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(123, 44, 191, 0.6);
}

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

.btn-secondary:hover {
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-3px);
}

/* Sections */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* About & Cards */
.glass-card {
    padding: 40px;
    border-radius: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
    transition:
        transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        box-shadow 0.4s ease,
        border-color 0.4s ease;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: -75%;
    width: 50%; height: 100%;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255,255,255,0.06),
        transparent
    );
    transform: skewX(-20deg);
    transition: left 0.65s ease;
    pointer-events: none;
}

.glass-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 50px rgba(46, 229, 157, 0.18),
                0 0 0 1px var(--primary-color);
    border-color: var(--primary-color);
}

.glass-card:hover::before {
    left: 125%;
}

.about-container {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: center;
}

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

.about-text p:last-child {
    margin-bottom: 0;
}

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

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    display: flex;
    align-items: center;
    padding: 20px;
    gap: 20px;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s;
    cursor: default;
}

.stat-card:hover {
    transform: translateX(-10px) scale(1.05);
    box-shadow: 0 10px 25px rgba(46, 229, 157, 0.2);
    border-color: var(--primary-color);
}

.stat-icon {
    font-size: 2.5rem;
    background: var(--btn-hover);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
}

.stat-info h4 {
    color: var(--text-primary);
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.stat-info p {
    font-size: 0.95rem;
    margin: 0;
}

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

.skill-category {
    padding: 30px;
}

.skill-category h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    padding: 0;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
}

.icon-container {
    width: 100%;
    height: 180px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    background: rgba(46, 229, 157, 0.05);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.4s;
}

.project-card:hover .icon-container {
    background: rgba(46, 229, 157, 0.15);
    color: var(--text-primary);
}

.project-card:hover .icon-container svg {
    transform: scale(1.15);
    filter: drop-shadow(0 0 10px var(--primary-color));
}

.icon-container svg {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.project-info {
    padding: 25px;
}

.project-info h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.tech-stack {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-size: 0.8rem;
    padding: 5px 12px;
    border-radius: 20px;
    background: var(--btn-hover);
    color: var(--primary-color);
    border: 1px solid rgba(46, 229, 157, 0.4);
    font-weight: 600;
}

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

.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 20px;
    border-radius: 2px;
    opacity: 0.5;
}

.timeline-item {
    padding: 30px;
    position: relative;
    background: inherit;
    width: 100%;
    margin-bottom: 30px;
    padding-left: 60px;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    left: 13px;
    top: 35px;
    background-color: var(--bg-color);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 10px var(--primary-color);
}

.timeline-content h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.timeline-date {
    display: inline-block;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

/* Social, Contact & Theme */
.nav-socials {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
    border-radius: 50%;
    transition: background 0.3s, transform 0.3s;
}

.theme-btn:hover {
    background: var(--btn-hover);
    transform: rotate(15deg);
}

.nav-socials a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: color 0.3s;
}

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

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.contact-info p {
    margin-bottom: 25px;
}

.social-links-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.social-link {
    padding: 10px 20px;
    border-radius: 5px;
    background: var(--btn-hover);
    color: var(--primary-color);
    text-decoration: none;
    border: 1px solid var(--primary-color);
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--primary-color);
}

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

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 15px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards;
}

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

.scroll-animate {
    opacity: 0;
    transform: translateY(50px) scale(0.96);
    transition: opacity 0.7s cubic-bezier(0.2, 0.8, 0.2, 1),
                transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.scroll-animate.exit-down {
    opacity: 0;
    transform: translateY(-50px) scale(0.96);
}

.scroll-animate.exit-up {
    opacity: 0;
    transform: translateY(50px) scale(0.96);
}

.stagger-item {
    transition-delay: calc(var(--stagger) * 0.12s);
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Responsive */
@media (max-width: 900px) {
    .name-header { font-size: 3.5rem; }
    .hero-title { font-size: 2.2rem; }
}

@media (max-width: 768px) {
    .nav-links, .nav-socials {
        display: none;
    }
    .glass-nav {
        padding: 15px 20px;
        width: 95%;
    }
    .hero-cta {
        flex-direction: column;
    }
    .blob-1, .blob-2 {
        width: 80vw;
        height: 80vw;
    }
    .contact-container, .about-container {
        grid-template-columns: 1fr;
    }
    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    .stat-card {
        flex: 1 1 150px;
    }
    .timeline::before {
        left: 31px;
    }
    .timeline-item {
        padding-left: 70px;
    }
    .timeline-dot {
        left: 24px;
    }
    .stat-card:hover {
        transform: translateY(-5px) scale(1.02);
    }
    section {
        padding: 80px 0;
    }
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .name-header { font-size: 2.5rem; }
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 1rem; }
    .glass-card { padding: 25px; }
    .stat-card { flex: 1 1 100%; }
    .filter-btn { padding: 6px 16px; font-size: 0.85rem; }
    .project-info h3 { font-size: 1.3rem; }
    .timeline-item { padding: 25px; padding-left: 60px; }
    .timeline::before { left: 24px; }
    .timeline-dot { left: 17px; }
}

/* Active nav link */
.nav-links a.active {
    color: var(--primary-color);
    text-shadow: 0 0 12px rgba(46, 229, 157, 0.6);
}

.nav-links a.active::after {
    content: '';
    display: block;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    margin-top: 3px;
    box-shadow: 0 0 8px var(--primary-color);
}

/* Skill Bars */
.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.skill-bar {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.skill-bar span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.bar {
    width: 100%;
    height: 7px;
    background: var(--glass-border);
    border-radius: 999px;
    overflow: hidden;
}

.fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 999px;
    transition: width 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
    box-shadow: 0 0 8px rgba(46, 229, 157, 0.4);
}

.fill.animated {
    width: var(--pct);
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--glass-border);
    padding: 50px 20px;
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
}

.footer-inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-name {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
}

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

.footer-links {
    display: flex;
    gap: 25px;
    margin: 8px 0;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: opacity 0.3s, text-shadow 0.3s;
}

.footer-links a:hover {
    opacity: 0.75;
    text-shadow: 0 0 10px var(--primary-color);
}

.footer-credit {
    color: var(--text-secondary);
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ========== Filter Tabs ========== */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 8px 22px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-secondary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    backdrop-filter: blur(8px);
}

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

.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 16px rgba(46, 229, 157, 0.4);
}

/* ========== CV Button ========== */
.btn-cv {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-cv:hover {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px rgba(46, 229, 157, 0.4);
    transform: translateY(-3px);
}

.btn-cv svg {
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.btn-cv:hover svg {
    transform: translateY(2px);
}