/* ==============================================
   DESIGN TOKENS
   ============================================== */

:root {
    --font-sans: 'Outfit', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    /* Spacing scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 100px;
    --transition: 0.25s ease;
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}


/* --- DARK THEME (default) --- */

[data-theme="dark"] {
    --bg-0: #09090b;
    --bg-1: #0f0f13;
    --bg-2: #17171c;
    --bg-3: #1e1e25;
    --surface: #1a1a21;
    --surface-hover: #22222b;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --text-0: #f0f0f2;
    --text-1: #a1a1aa;
    --text-2: #63636e;
    --accent: #818cf8;
    --accent-dim: rgba(129, 140, 248, 0.1);
    --accent-border: rgba(129, 140, 248, 0.2);
    --icon-filter: brightness(0) invert(1) opacity(0.55);
    --icon-filter-hover: brightness(0) invert(1) opacity(0.9);
}


/* --- LIGHT THEME --- */

[data-theme="light"] {
    --bg-0: #fafafa;
    --bg-1: #f4f4f5;
    --bg-2: #e8e8ec;
    --bg-3: #dddde3;
    --surface: #ffffff;
    --surface-hover: #f8f8fa;
    --border: rgba(0, 0, 0, 0.06);
    --border-hover: rgba(0, 0, 0, 0.12);
    --text-0: #18181b;
    --text-1: #52525b;
    --text-2: #a1a1aa;
    --accent: #6366f1;
    --accent-dim: rgba(99, 102, 241, 0.08);
    --accent-border: rgba(99, 102, 241, 0.18);
    --icon-filter: brightness(0) opacity(0.45);
    --icon-filter-hover: brightness(0) opacity(0.85);
}


/* ==============================================
   RESET & BASE
   ============================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-0);
    color: var(--text-0);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background var(--transition), color var(--transition);
}

::selection {
    background: var(--accent);
    color: #fff;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}


/* ==============================================
   NAVIGATION
   ============================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all var(--transition);
}

.nav-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav.scrolled {
    background: color-mix(in srgb, var(--bg-0) 80%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav.scrolled .nav-inner {
    padding: var(--space-md) var(--space-xl);
}

.nav-logo {
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.3px;
    color: var(--text-0);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.nav-links a {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-1);
    letter-spacing: 0.3px;
    transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-0);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: all var(--transition);
}

.nav-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-0);
    background: var(--surface);
}

.lang-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
}

.mobile-toggle span {
    width: 20px;
    height: 1.5px;
    background: var(--text-0);
    transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}


/* ==============================================
   HERO
   ============================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.hero-overline {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent);
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: enter 0.6s ease 0.15s forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: var(--space-lg);
    opacity: 0;
    animation: enter 0.6s ease 0.3s forwards;
}

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

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-1);
    max-width: 560px;
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    opacity: 0;
    animation: enter 0.6s ease 0.45s forwards;
    text-align: center;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    opacity: 0;
    animation: enter 0.6s ease 0.6s forwards;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    border: none;
    transition: all var(--transition);
}

.btn-fill {
    background: var(--accent);
    color: #fff;
}

.btn-fill:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--border-hover);
    color: var(--text-0);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn svg {
    width: 15px;
    height: 15px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.hero-socials {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    opacity: 0;
    animation: enter 0.6s ease 0.75s forwards;
    justify-content: center;
}

.social-link {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    transition: all var(--transition);
}

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

.social-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.hero-scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    opacity: 0;
    animation: enter 0.6s ease 1s forwards;
    cursor: pointer;
    z-index: 1;
}

.hero-scroll span {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-2);
}

.scroll-bar {
    width: 1px;
    height: 32px;
    background: var(--border-hover);
    position: relative;
    overflow: hidden;
}

.scroll-bar::after {
    content: '';
    position: absolute;
    top: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent);
    animation: scroll-pulse 2.2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0% {
        top: -100%;
    }
    100% {
        top: 100%;
    }
}


/* ==============================================
   SECTIONS
   ============================================== */

.section {
    padding: var(--space-3xl) 0;
}

.section-alt {
    background: var(--bg-1);
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-sm);
    display: block;
}

.section-heading {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.8px;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.section-desc {
    color: var(--text-1);
    font-size: 0.95rem;
    max-width: 540px;
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.divider {
    width: 40px;
    height: 2px;
    background: var(--accent);
    margin-bottom: var(--space-2xl);
    border: none;
}


/* ==============================================
   ABOUT
   ============================================== */

.about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about-text {
    font-size: 0.95rem;
    color: var(--text-1);
    line-height: 1.85;
}

.about-text p+p {
    margin-top: var(--space-lg);
}

.about-text strong {
    color: var(--text-0);
    font-weight: 600;
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.about-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    transition: all var(--transition);
}

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

.about-card-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: var(--space-xs);
}

.about-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.about-card p {
    font-size: 0.78rem;
    color: var(--text-2);
}

.cv-btn {
    margin-top: var(--space-xl);
}


/* ==============================================
   TIMELINE
   ============================================== */

.timeline {
    position: relative;
    max-width: 700px;
    padding-left: 28px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 1px;
    background: var(--border-hover);
}

.tl-item {
    position: relative;
    padding-bottom: var(--space-2xl);
}

.tl-item:last-child {
    padding-bottom: 0;
}

.tl-dot {
    position: absolute;
    left: -32px;
    top: 5px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--bg-0);
    border: 2px solid var(--text-2);
    transition: all var(--transition);
}

.tl-item:hover .tl-dot {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent-dim);
}

.tl-date {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-2);
    margin-bottom: 0.3rem;
    letter-spacing: 0.5px;
}

.tl-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.tl-place {
    font-size: 0.82rem;
    color: var(--accent);
    margin-bottom: 0.4rem;
}

.tl-desc {
    font-size: 0.85rem;
    color: var(--text-1);
    line-height: 1.7;
}


/* Tooltip */

.skill-chip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: var(--bg-3);
    color: var(--text-0);
    font-size: 0.68rem;
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
    border: 1px solid var(--border);
}

.skill-chip:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


/* ==============================================
   PROJECTS — Card layout with images
   ============================================== */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.project-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.03);
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
}

.project-image-placeholder svg {
    width: 40px;
    height: 40px;
    stroke: var(--text-2);
    fill: none;
    stroke-width: 1.5;
    opacity: 0.4;
}

.project-body {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-featured {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin-bottom: var(--space-sm);
}

.project-featured::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
}

.project-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    margin-bottom: var(--space-sm);
}

.project-desc {
    font-size: 0.88rem;
    color: var(--text-1);
    line-height: 1.65;
    margin-bottom: var(--space-md);
}

.project-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-top: auto;
}

.project-stack {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
    flex: 1;
}

.stack-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid var(--accent-border);
}

.project-links {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.project-icon-link {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    transition: all var(--transition);
}

.project-icon-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

.project-icon-link svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.project-icon-link.outline-icon svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}


/* ==============================================
   CONTACT
   ============================================== */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: var(--space-3xl);
}

.contact-intro p {
    color: var(--text-1);
    line-height: 1.8;
    font-size: 0.95rem;
    margin-bottom: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.contact-item-text small {
    display: block;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-2);
    margin-bottom: 0.1rem;
    font-weight: 500;
}

.contact-item-text a {
    font-size: 0.88rem;
    color: var(--text-0);
    font-weight: 500;
    transition: color var(--transition);
}

.contact-item-text a:hover {
    color: var(--accent);
}

.contact-form-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-1);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-0);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-dim);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.form-group select {
    appearance: none;
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-1);
    color: var(--text-0);
}

.form-hint {
    font-size: 0.7rem;
    color: var(--text-2);
    margin-top: var(--space-sm);
}


/* ==============================================
   FOOTER
   ============================================== */

.footer {
    border-top: 1px solid var(--border);
    padding: var(--space-xl) 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    font-size: 0.78rem;
    color: var(--text-2);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    color: var(--text-2);
    font-size: 0.78rem;
    transition: color var(--transition);
}

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


/* ==============================================
   ANIMATIONS
   ============================================== */

@keyframes enter {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--transition-slow), transform 0.6s var(--transition-slow);
}

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

.reveal-d1 {
    transition-delay: 0.1s;
}

.reveal-d2 {
    transition-delay: 0.2s;
}

.reveal-d3 {
    transition-delay: 0.3s;
}


/* ==============================================
   BACK TO TOP
   ============================================== */

.to-top {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
    z-index: 90;
    cursor: pointer;
}

.to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.to-top:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.to-top svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}


/* ==============================================
   RESPONSIVE
   ============================================== */

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
    }
    .hero-photo {
        display: none;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        inset: 0;
        background: color-mix(in srgb, var(--bg-0) 97%, transparent);
        backdrop-filter: blur(30px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-xl);
        transform: translateX(100%);
        transition: transform 0.4s var(--transition-slow);
        z-index: 999;
    }
    .nav-links.open {
        transform: translateX(0);
    }
    .nav-links a {
        font-size: 1.2rem;
    }
    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }
    .container {
        padding: 0 var(--space-lg);
    }
    .section {
        padding: var(--space-2xl) 0;
    }
    .hero-inner {
        padding: 0 var(--space-lg);
    }
    .nav-inner {
        padding: var(--space-md) var(--space-lg);
    }
    .about-cards {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .skills-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    }
    .project-header {
        flex-direction: column;
    }
    .footer-inner {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}


/* ==============================================
   SKILLS CAROUSEL — frontend/skills-carousel.css
   ============================================== */

.skills-carousel-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

.skills-topic {
    position: relative;
}

.skills-topic-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.skills-topic-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-full);
    background: var(--accent-dim);
}

.carousel-nav {
    display: flex;
    gap: var(--space-xs);
}

.carousel-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
}

.carousel-btn svg {
    width: 14px;
    height: 14px;
}

.carousel-btn:hover:not(:disabled) {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--accent-dim);
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.carousel-track-container {
    overflow: hidden;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
    mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
}

.carousel-track {
    display: flex;
    gap: var(--space-md);
    transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: grab;
    user-select: none;
    will-change: transform;
}

.carousel-track.is-dragging {
    cursor: grabbing;
    transition: none;
}

.skill-card {
    flex: 0 0 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: var(--space-lg) var(--space-md);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.skill-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, var(--accent-dim) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.skill-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-4px);
    background: var(--surface-hover);
}

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

.skill-card svg {
    width: 30px;
    height: 30px;
    color: var(--text-2);
    fill: var(--text-2);
    flex-shrink: 0;
    transition: color 0.25s ease, fill 0.25s ease, transform 0.3s ease;
}

.skill-card:hover svg {
    color: var(--accent);
    fill: var(--accent);
    transform: scale(1.1);
}

.skill-card svg[stroke="currentColor"] {
    fill: none;
    stroke: var(--text-2);
    transition: stroke 0.25s ease, transform 0.3s ease;
}

.skill-card:hover svg[stroke="currentColor"] {
    stroke: var(--accent);
    fill: none;
}

.skill-card-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-0);
    line-height: 1.2;
    transition: color 0.25s ease;
}

.skill-card-desc {
    font-size: 0.65rem;
    color: var(--text-2);
    line-height: 1.4;
    font-family: var(--font-mono);
    transition: color 0.25s ease;
}

.skill-card:hover .skill-card-desc {
    color: var(--text-1);
}

.carousel-dots {
    display: flex;
    gap: 5px;
    justify-content: center;
    margin-top: var(--space-md);
}

.carousel-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--border-hover);
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    padding: 0;
}

.carousel-dot.active {
    background: var(--accent);
    width: 18px;
    border-radius: var(--radius-full);
}

.skills-topic+.skills-topic {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .skill-card {
        flex: 0 0 115px;
        padding: var(--space-md) var(--space-sm);
    }
    .skill-card svg {
        width: 24px;
        height: 24px;
    }
    .skill-card-name {
        font-size: 0.72rem;
    }
    .skill-card-desc {
        font-size: 0.6rem;
    }
    .carousel-track-container {
        -webkit-mask-image: linear-gradient(to right, transparent 0%, black 3%, black 97%, transparent 100%);
        mask-image: linear-gradient(to right, transparent 0%, black 3%, black 97%, transparent 100%);
    }
}