:root[data-theme="dark"] {
    --bg: #0a0a0f;
    --bg2: #111118;
    --bg3: #1a1a24;
    --surface: #16161f;
    --border: #ffffff0f;
    --border-accent: #ffffff1a;
    --text: #f0f0f5;
    --text-muted: #8888a0;
    --text-dim: #55556a;
    --accent: #7c6aff;
    --accent2: #ff6a7c;
    --accent3: #6affd4;
    --glow: #7c6aff33;
    --card-bg: #13131c;
    --tag-bg: #7c6aff15;
    --tag-border: #7c6aff30;
    --switcher-bg: #1a1a24;
    --switcher-knob: #f0f0f5;
}

:root[data-theme="light"] {
    --bg: #f5f4f8;
    --bg2: #eeedf5;
    --bg3: #e6e4f0;
    --surface: #ffffff;
    --border: #00000010;
    --border-accent: #00000018;
    --text: #0f0f1a;
    --text-muted: #5a5a78;
    --text-dim: #9999b0;
    --accent: #5a48e8;
    --accent2: #e8486a;
    --accent3: #00b898;
    --glow: #5a48e820;
    --card-bg: #ffffff;
    --tag-bg: #5a48e810;
    --tag-border: #5a48e825;
    --switcher-bg: #e0deec;
    --switcher-knob: #0f0f1a;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
}

/* ---- NOISE OVERLAY ---- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 999;
}

/* ---- SCROLL PROGRESS ---- */
#progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: var(--accent);
    width: 0%;
    z-index: 1001;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px var(--accent);
}

/* ---- NAV ---- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 clamp(1.5rem, 5vw, 4rem);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    transition: background 0.4s, border-color 0.4s;
    backdrop-filter: blur(12px);
}

.nav-logo {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-family: 'DM Mono', monospace;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color 0.2s;
}

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

/* ---- THEME TOGGLE ---- */
.theme-toggle {
    width: 48px;
    height: 26px;
    background: var(--switcher-bg);
    border-radius: 13px;
    border: 1px solid var(--border-accent);
    cursor: pointer;
    position: relative;
    transition: background 0.4s;
    flex-shrink: 0;
}

.theme-toggle::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--switcher-knob);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.4s;
}

[data-theme="light"] .theme-toggle::after {
    transform: translateX(22px);
}

.toggle-icon {
    position: absolute;
    font-size: 10px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

.toggle-icon.moon {
    left: 5px;
}

.toggle-icon.sun {
    right: 4px;
}

/* ---- MAIN LAYOUT ---- */
main {
    padding-top: 64px;
}

section {
    padding: clamp(4rem, 10vw, 8rem) clamp(1.5rem, 8vw, 10rem);
}

/* ---- HERO ---- */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: calc(64px + clamp(4rem, 8vw, 6rem));
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.orb1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    opacity: 0.07;
    top: -100px;
    right: -100px;
    animation: drift1 12s ease-in-out infinite;
}

.orb2 {
    width: 350px;
    height: 350px;
    background: var(--accent3);
    opacity: 0.05;
    bottom: 0;
    left: -80px;
    animation: drift2 15s ease-in-out infinite;
}

@keyframes drift1 {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(-30px, 40px);
    }
}

@keyframes drift2 {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(40px, -30px);
    }
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'DM Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    border-radius: 100px;
    padding: 0.35rem 0.9rem;
    margin-bottom: 2rem;
    animation: fadeUp 0.8s ease both;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent3);
    box-shadow: 0 0 6px var(--accent3);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.hero-name {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: clamp(3rem, 8vw, 6.5rem);
    line-height: 1;
    letter-spacing: -0.04em;
    color: var(--text);
    animation: fadeUp 0.8s 0.1s ease both;
    margin-bottom: 0.3rem;
}

.hero-name .accent-word {
    color: var(--accent);
}

.hero-role {
    font-family: 'DM Mono', sans-serif;
    font-size: clamp(1.1rem, 2.5vw, 1.6rem);
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
    animation: fadeUp 0.8s 0.15s ease both;
}

.hero-title {
    font-family: 'DM Mono', monospace;
    font-size: clamp(0.9rem, 2.5vw, 1.2rem);
    color: var(--text-muted);
    margin-bottom: 1.8rem;
    animation: fadeUp 0.8s 0.2s ease both;
    letter-spacing: 0.02em;
}

.hero-desc {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--text-muted);
    max-width: 560px;
    line-height: 1.75;
    margin-bottom: 3rem;
    animation: fadeUp 0.8s 0.3s ease both;
    font-weight: 300;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeUp 0.8s 0.4s ease both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    background: var(--accent);
    color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 8px;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
    box-shadow: 0 0 0 0 var(--glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--glow);
    filter: brightness(1.1);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    background: transparent;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 8px;
    text-decoration: none;
    border: 1px solid var(--border-accent);
    transition: transform 0.2s, border-color 0.2s, background 0.2s;
}

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

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border-accent);
    animation: fadeUp 0.8s 0.5s ease both;
    /* position: absolute;
    right: clamp(1.5rem, 8vw, 8rem);
    bottom: clamp(3rem, 6vw, 5rem);
    display: flex;
    gap: 3rem;
    animation: fadeUp 0.8s 0.5s ease both; */
}

.stat {
    text-align: center;
}

.stat-num {
    font-family: 'Syne', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    display: block;
}

.stat-label {
    font-family: 'DM Mono', monospace;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    margin-top: 0.3rem;
    display: block;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

/* ---- SECTION HEADER ---- */
.section-header {
    margin-bottom: 3.5rem;
}

.section-tag {
    font-family: 'DM Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}

.section-tag::after {
    content: '';
    display: block;
    height: 1px;
    width: 40px;
    background: var(--accent);
    opacity: 0.5;
}

.section-title {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.03em;
    color: var(--text);
    line-height: 1.15;
}

/* ---- ABOUT ---- */
#about {
    background: var(--bg2);
    position: relative;
    overflow: hidden;
}

#about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-text p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.2rem;
    font-weight: 300;
}

.about-text p strong {
    color: var(--text);
    font-weight: 500;
}

.about-traits {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.trait-tag {
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    padding: 0.4rem 0.9rem;
    border-radius: 6px;
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    color: var(--accent);
    letter-spacing: 0.04em;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: default;
}

.trait-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--glow);
}

.about-lang-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.about-lang-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: var(--accent);
    opacity: 0.04;
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.lang-card-title {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.lang-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.lang-name {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text);
    width: 80px;
    flex-shrink: 0;
}

.lang-bar-track {
    flex: 1;
    height: 6px;
    background: var(--border-accent);
    border-radius: 3px;
    overflow: hidden;
}

.lang-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent3));
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.lang-bar-fill.animated {
    transform: scaleX(1);
}

.lang-level {
    font-family: 'DM Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-dim);
    width: 24px;
    text-align: right;
}

/* ---- EXPERIENCE ---- */
#experience {
    position: relative;
}

.exp-timeline {
    position: relative;
    padding-left: 2rem;
}

.exp-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

.exp-item {
    position: relative;
    margin-bottom: 3.5rem;
    padding-left: 2rem;
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.exp-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.exp-dot {
    position: absolute;
    left: -2.5rem;
    top: 4px;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent);
}

.exp-period {
    font-family: 'DM Mono', monospace;
    font-size: 0.72rem;
    color: var(--accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.exp-role {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 0.2rem;
}

.exp-company {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.exp-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.exp-bullets li {
    display: flex;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 300;
    line-height: 1.65;
}

.exp-bullets li::before {
    content: '→';
    color: var(--accent3);
    flex-shrink: 0;
    font-size: 0.85rem;
    margin-top: 0.15rem;
}

.exp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.exp-tag {
    font-family: 'DM Mono', monospace;
    font-size: 0.7rem;
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
    background: var(--tag-bg);
    border: 1px solid var(--tag-border);
    color: var(--accent);
}

/* ---- SKILLS ---- */
#skills {
    background: var(--bg2);
    position: relative;
    overflow: hidden;
}

#skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.6rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    cursor: default;
    opacity: 0;
    transform: translateY(20px);
}

.skill-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s, box-shadow 0.3s;
}

.skill-card:hover {
    transform: translateY(-4px) !important;
    border-color: var(--accent);
    box-shadow: 0 16px 40px var(--glow);
}

.skill-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    border-radius: inherit;
}

.skill-card:hover::after {
    opacity: 0.04;
}

.skill-icon {
    font-size: 1.6rem;
    margin-bottom: 0.9rem;
    display: block;
}

.skill-name {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.skill-desc {
    font-size: 0.83rem;
    color: var(--text-muted);
    line-height: 1.55;
    font-weight: 300;
}

.skill-level-bar {
    height: 3px;
    background: var(--border-accent);
    border-radius: 2px;
    margin-top: 1rem;
    overflow: hidden;
}

.skill-level-fill {
    height: 100%;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent3));
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-level-fill.animated {
    transform: scaleX(1);
}

/* ---- CONTACT ---- */
#contact {
    position: relative;
    text-align: center;
    overflow: hidden;
}

.contact-orb {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.04;
    filter: blur(100px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.contact-inner {
    position: relative;
    z-index: 1;
    max-width: 560px;
    margin: 0 auto;
}

.contact-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    font-weight: 300;
}

.contact-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--border-accent);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.25s;
    background: var(--card-bg);
}

.contact-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px var(--glow);
}

/* ---- FOOTER ---- */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem clamp(1.5rem, 8vw, 10rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: gap;
    gap: 1rem;
}

.footer-copy {
    font-family: 'DM Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
}

.footer-made {
    font-family: 'DM Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-dim);
    letter-spacing: 0.05em;
}

.footer-made span {
    color: var(--accent2);
}

/* ---- SCROLL REVEAL ---- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- CURSOR DOT ---- */
.cursor {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s;
    mix-blend-mode: normal;
}

.cursor-ring {
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--accent);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.4;
    transition: width 0.3s, height 0.3s, opacity 0.3s;
}

/* ---- MOBILE MENU ---- */
.menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: all 0.3s;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .hero-stats {
        position: static;
        margin-top: 3rem;
    }

    #hero {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        display: none;
    }

    .menu-btn {
        display: flex;
    }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 1.5rem 2rem;
        gap: 1.5rem;
    }

    .cursor,
    .cursor-ring {
        display: none;
    }
}