/* ===== CSS Variables ===== */
:root {
    /* Colors - Dark Theme (Default) - Black & White */
    --color-bg: #0a0a0a;
    --color-bg-alt: #111111;
    --color-bg-elevated: #181818;
    --color-surface: #1f1f1f;
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(255, 255, 255, 0.2);
    
    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #707070;
    
    --color-accent: #ffffff;
    --color-accent-hover: #e0e0e0;
    --color-accent-muted: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Sizing */
    --container-max: 1200px;
    --header-height: 72px;
    --section-padding: 120px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
}

/* Light Theme - Black & White */
[data-theme="light"] {
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-bg-elevated: #ffffff;
    --color-surface: #fafafa;
    --color-border: rgba(0, 0, 0, 0.1);
    --color-border-hover: rgba(0, 0, 0, 0.2);
    
    --color-text: #0a0a0a;
    --color-text-secondary: #404040;
    --color-text-muted: #808080;
    
    --color-accent: #0a0a0a;
    --color-accent-hover: #333333;
    --color-accent-muted: rgba(0, 0, 0, 0.08);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Selection */
::selection {
    background: var(--color-text);
    color: var(--color-bg);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* ===== Layout ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

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

/* ===== Loading Screen ===== */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

#loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.loader-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loader-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
}

/* ===== WebGL Canvas ===== */
#webgl-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

#app {
    position: relative;
    z-index: 1;
}

/* ===== Navigation ===== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 100;
    background: rgba(15, 15, 18, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-base);
}

[data-theme="light"] #header {
    background: rgba(250, 250, 250, 0.85);
}

.nav-container {
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-weight: 600;
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-accent);
    color: rgb(37, 37, 37);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
}

.logo-text {
    color: var(--color-text);
    font-size: 18px;
}

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

.nav-link {
    display: block;
    padding: 8px 16px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-accent-muted);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-cta {
    padding: 10px 20px;
    font-size: 14px;
}

/* Buttons */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--color-text-secondary);
    transform: translateY(-1px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Theme Toggle Icons */
.icon-sun { display: none; }
.icon-moon { display: block; }

[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

/* Mobile Menu */
.mobile-only { display: none; }

@media (max-width: 768px) {
    .nav-menu,
    .nav-cta { display: none; }
    .mobile-only { display: flex; }
    
    .nav-menu.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg-elevated);
        border-bottom: 1px solid var(--color-border);
        padding: 16px;
        gap: 4px;
    }
}

/* ===== Hero Section ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: var(--header-height);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.hero-text {
    max-width: 560px;
}

.hero-greeting {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.hero-title {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 24px);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

.hero-description {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--color-text-muted);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.05em;
    animation: float 3s ease-in-out infinite;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        max-width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
}

/* ===== Section Headers ===== */
.section-header {
    margin-bottom: 60px;
}

.section-header.centered {
    text-align: center;
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-description {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section-header.centered .section-description {
    margin: 0 auto;
}

/* ===== About Section ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.about-content .lead {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.about-content .lead strong {
    color: var(--color-accent);
}

.about-content p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: 
        transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-hover);
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
    transition: transform var(--transition-base);
}

.stat-item:hover .stat-number {
    transform: scale(1.1);
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-muted);
}

.about-image {
    position: sticky;
    top: calc(var(--header-height) + 40px);
    display: flex;
    justify-content: center;
}

.image-frame {
    position: relative;
    width: 340px;
    height: 340px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Glowing Circling Border Effect ===== */
.image-frame::after {
    content: '';
    position: absolute;
    width: 290px;
    height: 290px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent 0%,
        var(--color-text) 10%,
        transparent 20%,
        transparent 40%,
        var(--color-text) 50%,
        transparent 60%,
        transparent 80%,
        var(--color-text) 90%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
    pointer-events: none;
}

.image-frame:hover::after {
    opacity: 1;
    animation: border-glow-rotate 3s linear infinite;
}

@keyframes border-glow-rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Inner mask to create ring effect */
.image-placeholder::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    background: var(--color-bg);
    z-index: -1;
}

/* ===== Orbiting Atoms Effect ===== */

/* Orbit rings */
.atom-orbit {
    position: absolute;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s ease, border-color 0.4s ease;
}

.image-frame:hover .atom-orbit {
    opacity: 1;
    border-color: var(--color-text-muted);
}

/* Orbit 1 - Horizontal ellipse */
.orbit-1 {
    width: 420px;
    height: 150px;
    animation: orbit-rotate-1 8s linear infinite;
    animation-play-state: paused;
}

.image-frame:hover .orbit-1 {
    animation-play-state: running;
}

/* Orbit 2 - Tilted ellipse */
.orbit-2 {
    width: 400px;
    height: 170px;
    transform: rotate(60deg);
    animation: orbit-rotate-2 10s linear infinite;
    animation-play-state: paused;
}

.image-frame:hover .orbit-2 {
    animation-play-state: running;
}

/* Orbit 3 - Opposite tilt */
.orbit-3 {
    width: 380px;
    height: 160px;
    transform: rotate(-60deg);
    animation: orbit-rotate-3 12s linear infinite;
    animation-play-state: paused;
}

.image-frame:hover .orbit-3 {
    animation-play-state: running;
}

/* Electrons (orbiting particles) */
.electron {
    position: absolute;
    width: 14px;
    height: 14px;
    background: var(--color-text);
    border-radius: 50%;
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    box-shadow: 
        0 0 10px var(--color-text),
        0 0 20px var(--color-text),
        0 0 30px rgba(255, 255, 255, 0.5);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.image-frame:hover .electron {
    opacity: 1;
}

/* Different electron positions */
.orbit-1 .electron {
    animation: electron-move 2s linear infinite;
    animation-play-state: paused;
}

.orbit-2 .electron {
    animation: electron-move 2.5s linear infinite;
    animation-delay: -0.8s;
    animation-play-state: paused;
}

.orbit-3 .electron {
    animation: electron-move 3s linear infinite;
    animation-delay: -1.5s;
    animation-play-state: paused;
}

.image-frame:hover .orbit-1 .electron,
.image-frame:hover .orbit-2 .electron,
.image-frame:hover .orbit-3 .electron {
    animation-play-state: running;
}

@keyframes electron-move {
    0% {
        left: 0%;
        top: 50%;
    }
    25% {
        left: 50%;
        top: 0%;
    }
    50% {
        left: 100%;
        top: 50%;
    }
    75% {
        left: 50%;
        top: 100%;
    }
    100% {
        left: 0%;
        top: 50%;
    }
}

@keyframes orbit-rotate-1 {
    0% { transform: rotateX(75deg) rotateZ(0deg); }
    100% { transform: rotateX(75deg) rotateZ(360deg); }
}

@keyframes orbit-rotate-2 {
    0% { transform: rotateX(75deg) rotateZ(60deg); }
    100% { transform: rotateX(75deg) rotateZ(420deg); }
}

@keyframes orbit-rotate-3 {
    0% { transform: rotateX(75deg) rotateZ(-60deg); }
    100% { transform: rotateX(75deg) rotateZ(300deg); }
}

/* Nucleus glow effect */
.image-frame::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(255, 255, 255, 0.1) 0%,
        transparent 70%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 0;
}

.image-frame:hover::before {
    opacity: 1;
    animation: nucleus-pulse 2s ease-in-out infinite;
}

@keyframes nucleus-pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

/* Image placeholder - the nucleus */
.image-placeholder {
    width: 270px;
    height: 270px;
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    border-radius: 50%;
    border: 3px solid var(--color-border);
    transition: 
        border-color 0.4s ease,
        box-shadow 0.4s ease,
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
}

.image-frame:hover .image-placeholder {
    border-color: transparent;
    box-shadow: 
        0 0 40px rgba(255, 255, 255, 0.15),
        0 0 80px rgba(255, 255, 255, 0.08),
        inset 0 0 40px rgba(255, 255, 255, 0.05);
    transform: scale(1.02);
}

/* Image inside placeholder */
.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: transform 0.4s ease, filter 0.4s ease;
    filter: grayscale(20%);
}

.image-frame:hover .image-placeholder img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

/* Fallback for emoji/text */
.image-placeholder span {
    font-size: 80px;
    transition: transform 0.4s ease;
}

.image-frame:hover .image-placeholder span {
    transform: scale(1.1);
}

/* ===== Mobile Responsive for Image Frame ===== */
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
        position: relative;
        top: 0;
        margin: 0 auto 40px;
        width: 100%;
        max-width: 100%;
        overflow: visible;
    }
    
    .image-frame {
        width: 260px;
        height: 260px;
        margin: 0 auto;
    }
    
    .image-placeholder {
        width: 200px;
        height: 200px;
    }
    
    /* Smaller orbits on mobile */
    .orbit-1 {
        width: 320px;
        height: 110px;
    }
    
    .orbit-2 {
        width: 300px;
        height: 130px;
    }
    
    .orbit-3 {
        width: 280px;
        height: 120px;
    }
    
    .electron {
        width: 10px;
        height: 10px;
    }
    
    .image-frame::after {
        width: 220px;
        height: 220px;
    }
    
    .image-frame::before {
        width: 230px;
        height: 230px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ===== Skills Section ===== */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.skill-group {
    padding: 28px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.skill-group:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

.skill-group-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-group-title .skill-icon {
    font-size: 24px;
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.skill-bar-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.skill-bar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.skill-percent {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    font-family: 'JetBrains Mono', monospace;
}

.skill-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-bar-fill {
    height: 100%;
    width: var(--skill-level, 0%);
    background: linear-gradient(90deg, var(--color-text-muted), var(--color-text));
    border-radius: 4px;
    transition: width 1s ease-out;
    position: relative;
}

.skill-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

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

/* ===== Coding Competency Section ===== */
.competency-section {
    margin-top: 60px;
    padding: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.competency-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.competency-description {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.competency-bars {
    max-width: 600px;
    margin: 0 auto;
}

.competency-item {
    margin-bottom: 24px;
}

.competency-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.competency-label-left,
.competency-label-right {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text);
}

.competency-bar {
    height: 24px;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.05) 50%,
        rgba(255, 255, 255, 0.1) 100%);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--color-border);
}

.competency-bar-fill {
    height: 100%;
    width: var(--competency-level, 50%);
    border-radius: 12px;
    transition: width 1.5s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.competency-bar-fill.vibe-side {
    background: linear-gradient(90deg, 
        var(--color-text) 0%, 
        var(--color-text-secondary) 60%,
        transparent 100%);
}

.competency-center-marker {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-text-muted);
    transform: translateX(-50%);
    opacity: 0.5;
}

.competency-center-marker::before {
    content: '50%';
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.competency-info {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.competency-hint {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Competency animation on scroll */
.competency-section .competency-bar-fill {
    width: 0% !important;
}

.competency-section.is-visible .competency-bar-fill {
    width: var(--competency-level, 50%) !important;
}

/* Light theme adjustments */
[data-theme="light"] .competency-bar {
    background: linear-gradient(90deg, 
        rgba(0, 0, 0, 0.05) 0%, 
        rgba(0, 0, 0, 0.02) 50%,
        rgba(0, 0, 0, 0.05) 100%);
}

[data-theme="light"] .competency-bar-fill.vibe-side {
    background: linear-gradient(90deg, 
        var(--color-text) 0%, 
        var(--color-text-secondary) 60%,
        transparent 100%);
}

/* ===== Projects Section ===== */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

.project-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

.project-card.featured {
    background: linear-gradient(135deg, var(--color-accent-muted), transparent);
}

.project-card:nth-child(even) {
    direction: rtl;
}

.project-card:nth-child(even) > * {
    direction: ltr;
}

.project-image {
    aspect-ratio: 16/10;
    background: var(--color-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    border: 1px solid var(--color-border);
}

.project-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-label {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.project-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tech-tag {
    padding: 6px 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-secondary);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-weight: 500;
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.project-link:hover {
    gap: 12px;
}

@media (max-width: 768px) {
    .project-card,
    .project-card:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .project-image {
        order: -1;
    }
}

/* ===== Creative Section ===== */
.creative-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.creative-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    cursor: pointer;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.creative-item:hover .creative-overlay {
    opacity: 1;
}

.creative-preview {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    background: linear-gradient(135deg, var(--color-surface), var(--color-bg));
}

.creative-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
    padding: 24px;
    text-align: center;
}

.creative-overlay h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: white;
}

.creative-overlay p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

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

.contact-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

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

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

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

.footer-text {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.footer-tech {
    font-size: 14px;
    color: var(--color-text-muted);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.open {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.open .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 1;
}

.modal-close:hover {
    color: var(--color-text);
    border-color: var(--color-border-hover);
}

.modal-body {
    padding: 48px;
}

.modal-header {
    margin-bottom: 32px;
}

.modal-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.modal-subtitle {
    color: var(--color-text-secondary);
}

.modal-section {
    margin-bottom: 32px;
}

.modal-section h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.modal-section p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.modal-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}


.creative-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-image {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--color-surface);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    margin-bottom: 32px;
    overflow: hidden;
}

.modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* YOLO Demo Visualization */
.yolo-demo {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 24px;
}

.detection-box {
    position: absolute;
    border: 2px solid;
    border-radius: 4px;
    animation: pulse-border 2s ease-in-out infinite;
}

.detection-box.box-1 {
    top: 15%;
    left: 10%;
    width: 25%;
    height: 40%;
    border-color: #10b981;
}

.detection-box.box-2 {
    top: 30%;
    right: 15%;
    width: 20%;
    height: 35%;
    border-color: #3b82f6;
    animation-delay: 0.5s;
}

.detection-box.box-3 {
    bottom: 15%;
    left: 40%;
    width: 18%;
    height: 25%;
    border-color: #f59e0b;
    animation-delay: 1s;
}

.detection-label {
    position: absolute;
    top: -24px;
    left: 0;
    padding: 2px 8px;
    background: inherit;
    font-family: var(--font-mono);
    font-size: 11px;
    color: white;
    border-radius: 4px;
}

.detection-box.box-1 .detection-label { background: #10b981; }
.detection-box.box-2 .detection-label { background: #3b82f6; }
.detection-box.box-3 .detection-label { background: #f59e0b; }

@keyframes pulse-border {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 currentColor; }
    50% { opacity: 0.7; box-shadow: 0 0 20px currentColor; }
}

/* ===== Utilities ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ===== Enhanced Hover Effects ===== */

/* Universal Card Styles for Consistency */
.card-base {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: 
        transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
}

.card-base:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border-hover);
}

/* Skill Group Enhanced Hover */
.skill-group {
    position: relative;
    overflow: hidden;
}

.skill-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-text-muted), var(--color-text));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-group:hover::before {
    transform: scaleX(1);
}

.skill-group:hover {
    transform: translateY(-6px);
}

/* Skill Bar Item Hover */
.skill-bar-item {
    padding: 8px 12px;
    margin: -8px -12px;
    border-radius: 8px;
    transition: background var(--transition-fast);
}

.skill-bar-item:hover {
    background: var(--color-accent-muted);
}

.skill-bar-item:hover .skill-name {
    color: var(--color-text);
}

/* Project Card Enhanced Hover */
.project-card {
    position: relative;
    overflow: hidden;
}

.project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, var(--color-accent-muted) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

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

.project-card:hover {
    transform: translateY(-8px);
}

.project-card:hover .project-image {
    transform: scale(1.02);
}

.project-image {
    transition: transform var(--transition-base);
}

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

.project-card:hover .project-link {
    gap: 14px;
}

/* Tech Tags Hover */
.tech-tag {
    transition: 
        background var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast);
}

.tech-tag:hover {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
    transform: translateY(-2px);
}

/* Creative Item Enhanced Hover */
.creative-item {
    transition: 
        transform var(--transition-base),
        box-shadow var(--transition-base);
}

.creative-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.creative-item:hover .creative-preview {
    transform: scale(1.1);
}

.creative-preview {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Social Links Enhanced Hover */
.social-link {
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-text);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.social-link svg {
    position: relative;
    z-index: 1;
    transition: transform var(--transition-fast);
}

.social-link:hover::before {
    transform: translateY(0);
}

.social-link:hover {
    color: var(--color-bg);
    border-color: var(--color-text);
}

.social-link:hover svg {
    transform: scale(1.1);
}

/* Navigation Links Hover */
.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 16px;
    right: 16px;
    height: 2px;
    background: var(--color-text);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Button Hover Enhancements */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.btn-primary:hover::before {
    transform: translateX(100%);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

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

/* Logo Hover */
.nav-logo:hover .logo-mark {
    transform: rotate(-5deg) scale(1.05);
}

.logo-mark {
    transition: transform var(--transition-base);
}

/* Scroll Hint Animation */
.scroll-hint {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Modal Hover Effects */
.modal-close:hover {
    transform: rotate(90deg);
    background: var(--color-accent-muted);
}

/* ===== Focus States for Accessibility ===== */
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-icon:focus-visible,
.nav-link:focus-visible,
.social-link:focus-visible {
    outline: 2px solid var(--color-text);
    outline-offset: 2px;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-animate {
        opacity: 1 !important;
        transform: none !important;
    }
}