/* ===== CSS Custom Properties ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent-primary: #6c63ff;
    --accent-secondary: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #6c63ff 0%, #a78bfa 50%, #c084fc 100%);
    --accent-glow: rgba(108, 99, 255, 0.15);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(108, 99, 255, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--accent-primary);
    color: white;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

/* ===== Background Particles ===== */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0;
    animation: floatParticle linear infinite;
}

@keyframes floatParticle {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }

    10% {
        opacity: 0.6;
    }

    90% {
        opacity: 0.6;
    }

    100% {
        opacity: 0;
        transform: translateY(-10vh) scale(1);
    }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-normal);
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    transition: color var(--transition-fast);
}

.logo-bracket {
    color: var(--accent-primary);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
    background: var(--accent-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 40%, rgba(108, 99, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(167, 139, 250, 0.05) 0%, transparent 50%);
    animation: heroGlow 15s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }

    100% {
        transform: translate(-2%, -2%) rotate(3deg);
    }
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 80px;
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-avatar-wrapper {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.avatar-ring {
    width: 240px;
    height: 240px;
    border-radius: 50%;
    padding: 4px;
    background: var(--accent-gradient);
    animation: avatarPulse 4s ease-in-out infinite;
    position: relative;
}

@keyframes avatarPulse {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(108, 99, 255, 0.3);
    }

    50% {
        box-shadow: 0 0 40px rgba(108, 99, 255, 0.5), 0 0 80px rgba(108, 99, 255, 0.2);
    }
}

.hero-avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-primary);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    color: #22c55e;
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

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

    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

.hero-text {
    flex: 1;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.hero-name {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -2px;
}

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

.hero-titles {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 400;
    min-height: 2em;
}

.title-dynamic {
    color: var(--accent-secondary);
    font-weight: 600;
}

.cursor {
    color: var(--accent-primary);
    animation: blink 1s step-end infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

.hero-bio {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 99, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-primary);
    border: 1.5px solid var(--accent-primary);
}

.btn-secondary:hover {
    background: var(--accent-glow);
    transform: translateY(-2px);
}

/* ===== Hero Stats Row ===== */
.hero-stats-row {
    display: flex;
    align-items: center;
    gap: 32px;
}

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

.hero-stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
}

.scroll-indicator p {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 12px;
    letter-spacing: 2px;
    font-weight: 500;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--accent-gradient);
    margin: 0 auto;
    border-radius: 2px;
}

/* ===== Glass Card ===== */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(108, 99, 255, 0.08);
}

/* ===== About Grid ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.about-card {
    padding: 32px;
    text-align: center;
}

.about-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.about-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.about-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-sub {
    margin-top: 8px;
    font-size: 0.85rem !important;
    color: var(--text-muted) !important;
}

/* ===== Skills Grid ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.skill-category {
    padding: 28px;
}

.skill-cat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.skill-cat-icon {
    font-size: 1.5rem;
}

.skill-cat-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    border-color: var(--tag-color, var(--accent-primary));
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ===== Projects Grid ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-group-header {
    margin: 4rem 0 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.project-group-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.project-group-line {
    height: 1px;
    background: var(--border-color);
    flex: 1;
}

.project-group-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.project-card {
    padding: 28px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.project-logo-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.project-icon {
    font-size: 2rem;
}

.project-links {
    display: flex;
    gap: 12px;
}

.project-link {
    color: var(--text-muted);
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
}

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

.project-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.project-card:hover .project-title {
    color: var(--accent-primary);
}

.project-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 20px;
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.project-stack span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 4px 12px;
    background: var(--accent-glow);
    color: var(--accent-secondary);
    border-radius: 6px;
    border: 1px solid rgba(108, 99, 255, 0.15);
}

/* ===== Stats Section ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.stat-card {
    padding: 28px;
    text-align: center;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.stat-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 2px;
    overflow: hidden;
}

.stat-bar-fill {
    height: 100%;
    width: 0;
    background: var(--accent-gradient);
    border-radius: 2px;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-bar-fill.animate {
    width: var(--fill-width);
}

/* ===== GitHub Charts ===== */
.github-charts {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    width: 100%;
}

.github-chart {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    max-width: 495px;
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

.github-chart:hover {
    transform: translateY(-4px);
}

/* ===== Contact Section ===== */
.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 24px;
}

.contact-card {
    padding: 32px 48px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    min-width: 200px;
}

.contact-card:hover {
    color: var(--accent-primary);
}

.contact-card-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.contact-card-handle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-primary);
}

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

.footer-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.footer-code {
    color: var(--accent-primary);
    font-family: var(--font-mono);
}

.footer-year {
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

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

.fade-in,
.fade-in.visible {
    opacity: 1;
    transform: none;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .hero-name {
        font-size: 3rem;
    }

    .hero-bio {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-stats-row {
        justify-content: center;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
        gap: 8px;
        box-shadow: var(--shadow-md);
    }

    .nav-link {
        text-align: center;
        padding: 12px;
    }

    .nav-links.active {
        display: flex;
    }

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

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

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

    .hero-name {
        font-size: 2.4rem;
        letter-spacing: -1px;
    }

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

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

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

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

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-card,
    .skill-category,
    .project-card,
    .stat-card {
        padding: 20px;
    }

    .avatar-ring {
        width: 180px;
        height: 180px;
    }

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    .github-charts {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

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

@media (max-width: 480px) {
    .hero {
        padding: 100px 20px 40px;
    }

    .hero-name {
        font-size: 2.2rem;
    }

    .hero-bio {
        font-size: 0.95rem;
    }

    .hero-stats-row {
        gap: 12px;
        flex-wrap: wrap;
    }

    .hero-stat {
        flex: 1 1 40%;
    }

    .hero-stat-number {
        font-size: 1.5rem;
    }

    .hero-stat-divider {
        display: none;
    }

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

    .contact-card {
        padding: 24px 20px;
        min-width: unset;
        width: 100%;
    }

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