:root {
    --bg-0: #04060c;
    --bg-1: #050a14;
    --bg-2: #0a1122;
    --card: rgba(255, 255, 255, 0.028);
    --card-strong: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.12);
    --text-0: #f7f9fb;
    --text-1: #cdd5e6;
    --accent: #7c3aed;
    --accent-2: #22d3ee;
    --radius: 16px;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
    --transition: 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

body.light-theme {
    --bg-0: #f5f4ff;
    --bg-1: #ffffff;
    --bg-2: #eef2ff;
    --card: rgba(255, 255, 255, 0.8);
    --card-strong: rgba(255, 255, 255, 0.95);
    --border: rgba(12, 18, 33, 0.12);
    --text-0: #0c1221;
    --text-1: #334155;
    --shadow: 0 16px 35px rgba(15, 23, 42, 0.15);
    --header-bg: rgba(255, 255, 255, 0.9);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    color: var(--text-0);
    background: linear-gradient(140deg, var(--bg-0), var(--bg-1) 60%, var(--bg-2));
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
    transition: background 400ms ease, color 200ms ease;
    animation: none;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: -20%;
    background:
        radial-gradient(circle at 12% 18%, rgba(124, 58, 237, 0.32), transparent 52%),
        radial-gradient(circle at 28% 70%, rgba(34, 211, 238, 0.26), transparent 56%),
        radial-gradient(circle at 52% 30%, rgba(124, 58, 237, 0.26), transparent 50%),
        radial-gradient(circle at 72% 18%, rgba(34, 211, 238, 0.28), transparent 48%),
        radial-gradient(circle at 82% 55%, rgba(124, 58, 237, 0.22), transparent 56%),
        radial-gradient(circle at 90% 82%, rgba(34, 211, 238, 0.24), transparent 58%);
    filter: blur(14px);
    opacity: 0.55;
    pointer-events: none;
    z-index: 0;
    animation: none;
    will-change: auto;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='1' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
    opacity: 0.1;
    mix-blend-mode: soft-light;
    pointer-events: none;
    z-index: 1;
}

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

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 22px;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: var(--header-bg, linear-gradient(120deg, rgba(12, 18, 33, 0.9), rgba(17, 25, 43, 0.72)));
    border-bottom: 1px solid var(--border);
    transition: background-color 300ms ease, border-color 300ms ease;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 22px;
    gap: 20px;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background: var(--text-0);
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

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

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

.nav-brand h1 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.4px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 14px;
    list-style: none;
}

.nav-menu.is-open {
    display: flex;
}

.nav-link {
    padding: 8px 12px;
    border-radius: 10px;
    color: var(--text-1);
    font-weight: 600;
    position: relative;
    transition: color var(--transition), background var(--transition), transform var(--transition);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 50%;
    width: 70%;
    bottom: 6px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transform: translateX(-50%) scaleX(0);
    transform-origin: center;
    transition: transform var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--text-0);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-1px);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--text-0);
}

.theme-toggle {
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text-0);
    border-radius: 12px;
    padding: 8px 14px;
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
}

.theme-icon {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: inline-grid;
    place-items: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #0c1221;
    font-size: 0.95rem;
    transition: transform var(--transition);
}

.theme-icon img {
    width: 20px;
    height: 20px;
    display: block;
}

.theme-toggle:hover .theme-icon {
    transform: rotate(15deg);
}

.theme-toggle.is-pressed .theme-icon {
    animation: themePulse 0.45s ease;
}

@keyframes themePulse {
    0% {
        transform: scale(1);
    }
    45% {
        transform: scale(1.18) rotate(8deg);
    }
    100% {
        transform: scale(1);
    }
}

.hero {
    padding: 90px 0 70px;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 32px;
    align-items: stretch;
}

.hero-content {
    display: grid;
    gap: 14px;
    text-align: center;
    justify-items: center;
}

.hero-title {
    font-size: clamp(2.6rem, 4vw, 3.8rem);
    line-height: 1.05;
    font-weight: 800;
}

.hero-title span {
    color: var(--accent-2);
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-1);
    max-width: 720px;
}

.hero-description {
    color: var(--text-1);
    max-width: 680px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 4px;
    justify-content: center;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.badge {
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    font-weight: 700;
    color: var(--text-0);
    font-size: 0.9rem;
    transition: transform var(--transition), border-color var(--transition);
}

.badge:hover {
    transform: translateY(-2px);
    border-color: var(--accent-2);
}

.hero-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 10px;
    height: 100%;
    align-content: start;
    align-self: stretch;
    grid-auto-rows: 1fr;
}

.reveal {
    transform: translateY(18px);
    transition: transform 500ms ease;
}

.reveal.is-visible {
    transform: translateY(0);
}

.stat {
    background: var(--card-strong);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    text-align: left;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    height: 100%;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.stat:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 18px 35px rgba(124, 58, 237, 0.2);
}

.stat h3 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-2);
}

.stat p {
    color: var(--text-1);
    margin-top: 4px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: 12px;
    font-weight: 700;
    border: 1px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    font-size: 0.95rem;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(130deg, var(--accent), var(--accent-2));
    color: #0c1221;
    box-shadow: 0 10px 30px rgba(34, 211, 238, 0.3);
    border: 0;
    background-clip: padding-box;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 35px rgba(124, 58, 237, 0.35);
}

.btn-secondary {
    background: transparent;
    border-color: var(--border);
    color: var(--text-0);
}

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

section {
    padding: 64px 0;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 32px;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 80px;
    height: 3px;
    margin: 12px auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    opacity: 0.8;
}

.about {
    background: rgba(255, 255, 255, 0.01);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
    gap: 22px;
    align-items: stretch;
}

.about-card,
.about-textcard {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    height: 100%;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.about-card:hover,
.about-textcard:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 20px 45px rgba(124, 58, 237, 0.22);
}

.about-card {
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-textcard {
    display: grid;
    gap: 16px;
    align-content: center;
}

.about-avatar {
    display: grid;
    gap: 14px;
    place-items: center;
    text-align: center;
    height: 100%;
    align-content: center;
}

.avatar-circle {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    background: linear-gradient(140deg, var(--accent), var(--accent-2));
    display: grid;
    place-items: center;
    box-shadow: 0 15px 50px rgba(124, 58, 237, 0.35);
}

.user-icon {
    width: 110px;
    height: 110px;
    fill: var(--bg-0);
}

.avatar-emoji {
    font-size: 4rem;
    line-height: 1;
}

.about-name {
    font-size: 1.6rem;
    font-weight: 800;
}

.about-title {
    color: var(--accent-2);
    font-weight: 700;
}

.about-mini {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.pill {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card-strong);
    font-weight: 700;
}

.about-text {
    color: var(--text-1);
    display: grid;
    gap: 12px;
    line-height: 1.7;
    max-width: 640px;
    margin: 0 auto;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.projects {
    border-bottom: 1px solid var(--border);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
    align-items: stretch;
}

.project-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: grid;
    grid-template-rows: 170px 1fr;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 45px rgba(124, 58, 237, 0.25);
    border-color: var(--accent);
}

.project-card::after {
    content: "";
    position: absolute;
    inset: -40%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.18), transparent 55%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.project-card:hover::after {
    opacity: 1;
}

.project-image {
    display: grid;
    place-items: center;
    font-size: 2.2rem;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.3), rgba(34, 211, 238, 0.3));
}

.project-body {
    padding: 16px;
    display: grid;
    gap: 10px;
}

.project-body h3 {
    font-size: 1.2rem;
}

.project-body p {
    color: var(--text-1);
}

.project-links {
    margin-top: auto;
    display: flex;
    justify-content: center;
}

.skills {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
}

.skill-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 12px;
    display: grid;
    gap: 10px;
    place-items: center;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.skill-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(34, 211, 238, 0.18);
}

.skill-card:focus-visible {
    outline: 2px solid var(--accent-2);
    outline-offset: 3px;
}

.skill-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(124, 58, 237, 0.12), transparent 40%, rgba(34, 211, 238, 0.12));
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.skill-card:hover::after {
    opacity: 1;
}

.scroll-fab {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 40px;
    height: 62px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text-0);
    display: grid;
    place-items: center;
    cursor: pointer;
    z-index: 80;
    box-shadow: var(--shadow);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.scroll-dot {
    width: 6px;
    height: 10px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
    animation: scrollDot 1.6s ease-in-out infinite;
}

.scroll-fab:hover {
    transform: translateY(-2px);
    border-color: var(--accent-2);
    box-shadow: 0 18px 40px rgba(34, 211, 238, 0.18);
}

.scroll-fab.is-up {
    background: var(--card-strong);
}

.scroll-fab.is-up .scroll-dot {
    animation-direction: reverse;
}

.skill-card h3 {
    font-weight: 800;
}

.skill-card p {
    color: var(--text-1);
    font-size: 0.95rem;
    text-align: center;
}

.skill-emoji {
    font-size: 2.4rem;
    line-height: 1;
}

.skill-canvas {
    display: none;
}

.skill-detail {
    display: none;
}

.skill-canvas {
    width: 110px;
    height: 110px;
}

.contact {
    border-top: 1px solid var(--border);
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
    gap: 16px;
    align-items: start;
}

.contact-form,
.contact-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
}

.contact-form {
    display: grid;
    gap: 12px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card-strong);
    color: var(--text-0);
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: 2px solid var(--accent);
}

.contact-card {
    display: grid;
    gap: 12px;
}

.contact-note {
    font-weight: 800;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.social-link {
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--card-strong);
    font-weight: 700;
    transition: var(--transition);
}

.theme-transition,
.theme-transition * {
    transition: background-color 600ms ease, color 400ms ease, border-color 600ms ease, box-shadow 600ms ease;
}

.social-link:hover {
    border-color: var(--accent);
    color: var(--accent-2);
}

.footer {
    text-align: center;
    padding: 32px 0 44px;
    color: var(--text-1);
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.skill-modal {
    position: fixed;
    inset: 0;
    background: rgba(6, 10, 20, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 100;
    backdrop-filter: blur(6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 320ms ease, backdrop-filter 320ms ease;
}

.skill-modal.is-open {
    opacity: 1;
    backdrop-filter: blur(10px);
    pointer-events: auto;
}

.skill-modal-card {
    width: min(520px, 92vw);
    background: rgba(10, 14, 24, 0.68);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 24px;
    display: grid;
    gap: 14px;
    position: relative;
    transform: translateY(20px) scale(0.96);
    opacity: 0;
    transition: transform 320ms ease, opacity 320ms ease;
    text-align: center;
}

body.light-theme .skill-modal-card {
    background: rgba(255, 255, 255, 0.9);
}

.skill-modal.is-open .skill-modal-card {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.skill-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card-strong);
    color: var(--text-0);
    font-weight: 700;
    cursor: pointer;
}

.skill-modal-emoji {
    font-size: 2.6rem;
}

.skill-modal-title {
    font-size: 1.4rem;
    font-weight: 800;
}

.skill-modal-subtitle,
.skill-modal-detail {
    color: var(--text-1);
}

.skill-modal-canvas {
    width: 160px;
    height: 160px;
    justify-self: center;
}

.skill-modal-detail {
    max-width: 360px;
    margin: 0 auto;
    line-height: 1.6;
}

section {
    position: relative;
    z-index: 1;
}

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 720px) {
    .nav-menu {
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    .hero {
        padding: 70px 0 50px;
    }

    .hero-actions,
    .hero-badges {
        justify-content: flex-start;
    }

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

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}

@keyframes scrollDot {
    0% { transform: translateY(-6px); opacity: 0.4; }
    60% { transform: translateY(6px); opacity: 1; }
    100% { transform: translateY(10px); opacity: 0; }
}

@keyframes bgShift {
    0%, 100% { background-position: 0% 0%, 100% 0%, 0% 0%; }
    50% { background-position: 10% 8%, 90% 10%, 0% 0%; }
}

@keyframes glowFloat {
    0% {
        transform: translate3d(-8%, -6%, 0) scale(1);
        background-position: -6% -6%, 106% 2%, 76% 88%;
    }
    50% {
        transform: translate3d(8%, 8%, 0) scale(1.04);
        background-position: 30% 20%, 70% 2%, 56% 76%;
    }
    100% {
        transform: translate3d(-8%, -6%, 0) scale(1);
        background-position: -6% -6%, 106% 2%, 76% 88%;
    }
}

@media (prefers-reduced-motion: reduce) {
    body,
    body::before {
        animation: none;
    }
}