:root {
    /* Terminal Color Palette */
    --bg-primary: #0d0d0f;
    --bg-secondary: #1a1d23;
    --bg-card: #1f2329;
    --border-color: #2a2d35;
    
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a0;
    --text-muted: #606060;
    
    --accent-green: #00ff7f;
    --accent-cyan: #00d9ff;
    --accent-coral: #ff6b6b;
    --accent-yellow: #ffeb3b;
    --accent-purple: #b17ef7;
    
    /* Typography */
    --font-display: 'Source Code Pro', monospace;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --section-padding: 120px;
    --container-width: 1200px;
    --topbar-height: 112px;
    --sidebar-width: 320px;
    
    /* Effects */
    --glow-green: 0 0 20px rgba(0, 255, 127, 0.4);
    --glow-cyan: 0 0 20px rgba(0, 217, 255, 0.4);
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.6);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    line-height-step: 3px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.75;
    overflow-x: hidden;
    padding-bottom: 120px;
    position: relative;
}

/* CRT and Scanline Effects */
.scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0) 50%,
        rgba(0, 0, 0, 0.03) 50%
    );
    background-size: 100% 4px;
    z-index: 9999;
    pointer-events: none;
    animation: scanline 8s linear infinite;
}

@keyframes scanline {
    0% { transform: translateY(0); }
    100% { transform: translateY(4px); }
}

.crt-effect {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
    z-index: 9998;
    pointer-events: none;
}

/* Grid Background */
.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 127, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 127, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
    pointer-events: none;
}

.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top left, rgba(0, 255, 127, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at bottom right, rgba(0, 217, 255, 0.05) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Top Bar */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--topbar-height);
    background: rgba(26, 29, 35, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--border-color);
    box-shadow: 0 0 20px rgba(0, 255, 127, 0.1);
    z-index: 1000;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 12px 40px 0 40px;
    overflow: visible;
    transition: height 0.35s ease, box-shadow 0.3s ease, background 0.3s ease;
    animation: slideDown 0.6s ease;
}

.topbar:hover {
    height: min(50vh, 460px);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.menu-toggle {
    background: transparent;
    border: 2px solid var(--accent-green);
    cursor: pointer;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    margin-top: 6px;
}

.menu-toggle:hover {
    box-shadow: var(--glow-green);
    background: rgba(0, 255, 127, 0.1);
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--accent-green);
    transition: all 0.3s ease;
    display: block;
}

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

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

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

.topbar-name {
    position: absolute;
    left: 50%;
    top: 10px;
    transform: translateX(-50%);
    text-align: center;
    width: min(780px, calc(100% - 220px));
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding-top: 6px;
    transition: transform 0.35s ease;
}

.topbar:hover .topbar-name {
    transform: translateX(calc(-50% - 24px));
}

.topbar-main {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 55px;
}

.header-profile-pic {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    opacity: 0.9;
    transform: scale(1.15);
    transition: width 0.35s ease, height 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease, margin-top 0.35s ease;
    box-shadow: 0 0 0 rgba(0, 0, 0, 0);
    margin-top: 12px;
}

.topbar:hover .header-profile-pic {
    width: min(25vh, 210px);
    height: min(25vh, 210px);
    margin-top: 18px;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 16px color-mix(in srgb, var(--accent-cyan) 45%, transparent);
}

.topbar-identity {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.topbar-section-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.28s ease, opacity 0.24s ease, transform 0.24s ease;
    transform: translateY(-6px);
}

.topbar:hover .topbar-section-nav {
    max-height: 40px;
    opacity: 1;
    transform: translateY(0);
}

.topbar-expanded-info {
    width: min(760px, 96%);
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 14px;
    padding: 0 18px;
    border: 1px solid transparent;
    background: transparent;
    transition: max-height 0.3s ease, opacity 0.25s ease, padding 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.topbar:hover .topbar-expanded-info {
    max-height: 180px;
    opacity: 1;
    padding: 14px 18px 12px 18px;
    border-color: color-mix(in srgb, var(--accent-cyan) 35%, var(--border-color));
    background: color-mix(in srgb, var(--bg-secondary) 86%, transparent);
}

.expanded-info-row {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 12px;
    font-size: 11px;
    letter-spacing: 0.7px;
    margin: 6px 0;
}

.expanded-info-label {
    color: var(--accent-green);
    font-weight: 700;
}

.expanded-info-value {
    color: var(--text-primary);
}

.section-nav-current {
    min-width: 170px;
    text-align: center;
    font-size: 12px;
    color: var(--accent-cyan);
    letter-spacing: 1px;
    font-weight: 700;
}

.section-nav-arrow {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--accent-green);
    width: 28px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    line-height: 1;
    transition: all 0.25s ease;
}

.section-nav-arrow:hover {
    border-color: var(--accent-green);
    background: rgba(0, 255, 127, 0.08);
}

.section-nav-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.terminal-prompt {
    font-size: 11px;
    color: var(--accent-green);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.topbar-name h1 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.topbar:hover .topbar-name h1 {
    font-size: 30px;
}

.topbar-name p {
    font-size: 11px;
    color: var(--accent-cyan);
    margin: 2px 0 0 0;
    font-weight: 400;
}

.topbar-actions {
    display: flex;
    gap: 12px;
    margin-top: 6px;
}

.theme-toggle {
    background: transparent;
    border: 2px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 8px 16px;
    font-family: var(--font-mono);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.35s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    --sheen-duration: 4.2s;
    --cube-color: var(--theme-preview-green, var(--accent-green));
    animation: theme-attention 3.8s ease-in-out infinite;
}

.theme-toggle:hover {
    background: var(--theme-preview-cyan, var(--accent-cyan));
    color: var(--bg-primary);
    box-shadow: 0 0 18px color-mix(in srgb, var(--theme-preview-cyan, var(--accent-cyan)) 50%, transparent);
    --cube-color: var(--accent-yellow);
}

.theme-toggle::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        120deg,
        transparent 15%,
        color-mix(in srgb, var(--theme-preview-green, var(--accent-green)) 30%, transparent) 40%,
        color-mix(in srgb, var(--theme-preview-cyan, var(--accent-cyan)) 35%, transparent) 55%,
        transparent 80%
    );
    transform: translateX(-120%);
    animation: theme-sheen var(--sheen-duration) ease-in-out infinite;
    pointer-events: none;
}

.theme-toggle.previewing {
    border-color: var(--theme-preview-cyan, var(--accent-cyan));
    color: var(--theme-preview-cyan, var(--accent-cyan));
    box-shadow: 0 0 12px color-mix(in srgb, var(--theme-preview-green, var(--accent-green)) 40%, transparent);
}

.theme-icon {
    position: relative;
    display: inline-block;
    width: 12px;
    height: 12px;
    font-size: 0;
    transform-style: preserve-3d;
    animation: cube-spin 3.2s linear infinite;
    filter: drop-shadow(0 0 4px color-mix(in srgb, var(--cube-color) 50%, transparent));
}

.theme-icon::before,
.theme-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--cube-color);
    background: color-mix(in srgb, var(--cube-color) 22%, transparent);
}

.theme-icon::after {
    transform: translate(3px, -3px);
    opacity: 0.9;
}

@keyframes theme-attention {
    0%, 100% {
        transform: translateY(0);
        filter: brightness(1);
    }
    50% {
        transform: translateY(-1px);
        filter: brightness(1.08);
    }
}

@keyframes theme-sheen {
    0%, 30% {
        transform: translateX(-120%);
        opacity: 0;
    }
    45% {
        opacity: 1;
    }
    70%, 100% {
        transform: translateX(140%);
        opacity: 0;
    }
}

@keyframes cube-spin {
    0% {
        transform: rotateX(-24deg) rotateY(0deg);
    }
    100% {
        transform: rotateX(-24deg) rotateY(360deg);
    }
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 2px solid var(--border-color);
    z-index: 1100;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-soft);
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-content {
    padding: 40px 30px;
    padding-top: 100px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.terminal-window-header {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.close { background: #ff5f56; }
.terminal-dot.minimize { background: #ffbd2e; }
.terminal-dot.maximize { background: #27c93f; }

.sidebar-header h3 {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--accent-green);
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.sidebar-close {
    position: absolute;
    top: 40px;
    right: 30px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 32px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: all 0.3s ease;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-close:hover {
    color: var(--accent-coral);
    text-shadow: 0 0 10px var(--accent-coral);
}

.sidebar-links {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.sidebar-links li {
    margin-bottom: 12px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    padding: 14px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid transparent;
}

.link-prompt {
    color: var(--accent-green);
    font-weight: 700;
}

.link-text {
    flex-grow: 1;
}

.sidebar-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--accent-green);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.sidebar-link:hover,
.sidebar-link.active {
    color: var(--accent-green);
    background: rgba(0, 255, 127, 0.05);
    border-color: var(--accent-green);
}

.sidebar-link:hover::before,
.sidebar-link.active::before {
    transform: scaleY(1);
}

.sidebar-footer {
    border-top: 2px solid var(--border-color);
    padding-top: 20px;
}

.system-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-line {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
}

.info-key {
    color: var(--text-muted);
}

.info-value {
    color: var(--accent-cyan);
    font-weight: 600;
}

.status-online {
    color: var(--accent-green);
    animation: pulse-text 2s ease-in-out infinite;
}

@keyframes pulse-text {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Section Styling */
section {
    position: relative;
    z-index: 2;
    padding: var(--section-padding) 0;
    min-height: 100vh;
    scroll-margin-top: var(--topbar-height);
}

.section-header {
    margin-bottom: 72px;
}

.section-prompt {
    color: var(--accent-green);
    font-size: 13px;
    font-weight: 600;
    display: block;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

.bracket-spacer {
    visibility: hidden;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: calc(var(--topbar-height) + 50px) 0 100px 0;
}

.hero-content {
    flex: 1;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 255, 127, 0.05);
    border: 2px solid var(--accent-green);
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 11px;
    color: var(--accent-green);
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    --title-column-offset: 0.66em;
    font-family: var(--font-display);
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 40px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.title-line {
    display: block;
}

.title-word {
    display: inline-block;
    margin-left: var(--title-column-offset);
}

.title-glitch {
    color: var(--hero-glitch-base, var(--accent-yellow));
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 1.32em;
    padding-left: calc(var(--title-column-offset) + 1.1999ch);
    padding-right: 0.42em;
    overflow: hidden;
    vertical-align: middle;
    perspective: 1200px;
    transform-style: preserve-3d;
    min-width: 21.4ch;
}

.title-glitch-track {
    position: relative;
    width: 100%;
    height: 1.32em;
    transform-style: preserve-3d;
    transform-origin: center center;
    transition: transform 1.15s cubic-bezier(0.24, 0.8, 0.28, 1);
    will-change: transform;
}

.title-glitch-item {
    position: absolute;
    inset: 0;
    line-height: 1.2;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    backface-visibility: hidden;
    white-space: nowrap;
    opacity: 0.36;
    filter: blur(1.2px);
    transition: opacity 0.6s ease, filter 0.6s ease;
}

.title-glitch-item.is-active {
    opacity: 1;
    filter: blur(0);
}

@keyframes glitch-anim {
    0% { clip: rect(10px, 9999px, 31px, 0); }
    10% { clip: rect(70px, 9999px, 71px, 0); }
    20% { clip: rect(60px, 9999px, 40px, 0); }
    30% { clip: rect(20px, 9999px, 90px, 0); }
    40% { clip: rect(80px, 9999px, 20px, 0); }
    50% { clip: rect(50px, 9999px, 60px, 0); }
    60% { clip: rect(30px, 9999px, 80px, 0); }
    70% { clip: rect(90px, 9999px, 10px, 0); }
    80% { clip: rect(40px, 9999px, 70px, 0); }
    90% { clip: rect(15px, 9999px, 85px, 0); }
    100% { clip: rect(65px, 9999px, 35px, 0); }
}

.command-output {
    margin-bottom: 48px;
}

.output-line {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    gap: 12px;
    line-height: 1.9;
}

.output-prompt {
    color: var(--accent-green);
}

.hero-cta {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 16px 32px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-green);
    box-shadow: var(--glow-green);
}

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

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
}

.btn-icon {
    font-weight: 700;
}

.btn-cursor {
    animation: blink-cursor 1s step-end infinite;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    padding-left: 430px;
    padding-top: 0;
    animation: fadeInUp 0.8s ease 0.4s backwards;
    transform: translateX(64px) translateY(-88px);
}

/* Code Window */
.code-window {
    width: 100%;
    max-width: 520px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.code-header {
    background: var(--bg-card);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border-color);
}

.code-tabs {
    display: flex;
    gap: 8px;
}

.code-tab {
    font-size: 11px;
    padding: 6px 12px;
    background: transparent;
    color: var(--text-muted);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.code-tab.active {
    background: var(--bg-primary);
    color: var(--accent-green);
}

.code-actions {
    color: var(--accent-cyan);
    font-size: 14px;
}

.code-body {
    padding: 24px;
    font-size: 13px;
    line-height: 1.8;
}

.code-line {
    margin-bottom: 4px;
    display: flex;
    gap: 16px;
    animation: typeLine 0.5s ease;
}

@keyframes typeLine {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.code-line:nth-child(1) { animation-delay: 0.5s; }
.code-line:nth-child(2) { animation-delay: 0.6s; }
.code-line:nth-child(3) { animation-delay: 0.7s; }
.code-line:nth-child(4) { animation-delay: 0.8s; }
.code-line:nth-child(5) { animation-delay: 0.9s; }
.code-line:nth-child(6) { animation-delay: 1s; }
.code-line:nth-child(7) { animation-delay: 1.1s; }
.code-line:nth-child(8) { animation-delay: 1.2s; }
.code-line:nth-child(9) { animation-delay: 1.3s; }
.code-line:nth-child(10) { animation-delay: 1.4s; }

.line-number {
    color: var(--text-muted);
    min-width: 24px;
}

.code-keyword {
    color: var(--accent-cyan);
}

.code-string {
    color: var(--accent-green);
}

.code-value {
    color: var(--accent-yellow);
}

.code-comment {
    color: var(--text-muted);
    font-style: italic;
}

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

/* About Section */
.about {
    background: var(--bg-secondary);
}

.about-content {
    max-width: 1000px;
}

.about-text p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-text .lead {
.output-text-multiline {
    white-space: pre-line;
}
    font-size: 20px;
    color: var(--text-primary);
}

.about-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.about-bullets li {
    color: var(--text-secondary);
    line-height: 1.95;
    display: flex;
    align-items: flex-start;
}

.command-prefix {
    color: var(--accent-green);
    margin-right: 12px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.stat-item {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    padding: 30px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    border-color: var(--accent-green);
    box-shadow: var(--glow-green);
    transform: translateY(-5px);
}

.stat-label {
    font-size: 11px;
    color: var(--accent-cyan);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--accent-green);
    line-height: 1;
}

.stat-unit {
    font-size: 28px;
    color: var(--text-secondary);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.skill-category {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 30px;
    transition: all 0.3s ease;
}

.skill-category:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-color);
}

.category-icon {
    font-size: 24px;
}

.skill-category h3 {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: var(--bg-secondary);
    color: var(--accent-green);
    padding: 8px 14px;
    border-radius: 3px;
    font-size: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: default;
}

.tag:hover {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
    transform: scale(1.05);
}

/* Experience Section */
.experience {
    background: var(--bg-secondary);
}

/* Certifications Section */
.certifications {
    background: var(--bg-primary);
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.cert-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.cert-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-5px);
    box-shadow: var(--glow-green);
}

.cert-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.cert-card h3 {
    font-family: var(--font-display);
    font-size: 20px;
    color: var(--accent-cyan);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cert-issuer {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.cert-number {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.timeline {
    position: relative;
    padding-left: 2px;
    --timeline-line-x: -25px;
    --timeline-marker-size: 29px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: var(--timeline-line-x);
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--accent-green) 0%, var(--accent-cyan) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 72px;
    padding-left: 40px;
}

.timeline-marker {
    position: absolute;
    left: calc(var(--timeline-line-x) - (var(--timeline-marker-size) / 2));
    top: 50%;
    transform: translateY(-50%);
    width: var(--timeline-marker-size);
    height: var(--timeline-marker-size);
    display: flex;
    align-items: center;
    justify-content: center;
}

.marker-icon {
    color: var(--accent-green);
    font-size: 16px;
    z-index: 2;
    position: relative;
}

.marker-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: var(--timeline-marker-size);
    height: var(--timeline-marker-size);
    border: 2px solid var(--accent-green);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}

.timeline-content {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    padding: 36px;
    transition: all 0.3s ease;
}

.timeline-content:hover {
    border-color: var(--accent-green);
    transform: translateX(10px);
    box-shadow: var(--glow-green);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.project-title-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.project-index {
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--accent-cyan);
    font-weight: 700;
}

.timeline-content h3 {
    font-family: var(--font-display);
    font-size: 20px;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-year {
    color: var(--accent-cyan);
    font-size: 13px;
    font-weight: 600;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.95;
    margin-bottom: 24px;
}

.project-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 24px;
    font-size: 12px;
}

.project-stats .stat {
    color: var(--accent-cyan);
}

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

.project-tags span {
    background: var(--bg-secondary);
    color: var(--accent-yellow);
    padding: 6px 12px;
    border-radius: 3px;
    font-size: 11px;
    border: 1px solid var(--border-color);
}

/* Contact Section */
.contact {
    text-align: left;
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 56px;
}

.contact-link {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 28px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-link:hover {
    border-color: var(--accent-green);
    background: var(--bg-secondary);
    transform: translateX(10px);
    box-shadow: var(--glow-green);
}

.contact-prefix {
    color: var(--accent-green);
    font-size: 18px;
    font-weight: 700;
}

.contact-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-value {
    font-size: 16px;
    color: var(--accent-cyan);
    font-weight: 600;
}

.contact-arrow {
    color: var(--accent-green);
    font-size: 20px;
    transition: transform 0.3s ease;
}

.contact-link:hover .contact-arrow {
    transform: translateX(5px);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
    padding: 24px 0;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    z-index: 950;
    backdrop-filter: blur(8px);
}

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

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-text {
    color: var(--text-primary);
    font-size: 12px;
}

.footer-subtext {
    color: var(--text-muted);
    font-size: 10px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 11px;
    transition: color 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.back-to-about {
    position: fixed;
    right: 24px;
    bottom: 140px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 2px solid var(--accent-green);
    background: color-mix(in srgb, var(--bg-secondary) 86%, transparent);
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 28px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 0 rgba(0, 255, 127, 0);
    opacity: 0;
    transform: translateY(14px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    z-index: 980;
}

.back-to-about.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-about:hover {
    background: rgba(0, 255, 127, 0.15);
    box-shadow: var(--glow-green);
}

.back-to-about:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 3px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 60px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-visual {
        justify-content: center;
        padding-left: 0;
        padding-top: 0;
        transform: none;
    }
    
    .hero-cta {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .topbar {
        padding: 12px 20px 0 20px;
    }

    .topbar-name h1 {
        font-size: 16px;
    }

    .topbar-name p {
        font-size: 9px;
    }
    
    .terminal-prompt {
        display: none;
    }
    
    .sidebar {
        width: 280px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .theme-toggle {
        padding: 6px 12px;
        font-size: 12px;
    }

    .topbar-name {
        width: min(92%, calc(100% - 120px));
    }

    .topbar:hover {
        height: 300px;
    }

    .topbar-main {
        gap: 24px;
    }

    .topbar:hover .header-profile-pic {
        width: min(26vh, 150px);
        height: min(26vh, 150px);
    }

    .expanded-info-row {
        flex-direction: column;
        gap: 2px;
        margin: 8px 0;
    }

    .topbar:hover .topbar-expanded-info {
        max-height: 220px;
    }

    .section-nav-current {
        min-width: 120px;
        font-size: 10px;
    }
}

@media (hover: none) {
    .topbar {
        height: 156px;
    }

    .topbar-section-nav {
        max-height: 40px;
        opacity: 1;
        transform: translateY(0);
    }

    .header-profile-pic {
        width: 72px;
        height: 72px;
        transform: scale(1);
    }

    .topbar-expanded-info {
        max-height: 170px;
        opacity: 1;
        padding: 8px 12px;
        border-color: color-mix(in srgb, var(--accent-cyan) 28%, var(--border-color));
        background: color-mix(in srgb, var(--bg-secondary) 86%, transparent);
    }
}

@media (max-width: 480px) {
    .topbar-name h1 {
        font-size: 14px;
    }

    .topbar-name p {
        display: none;
    }

    .sidebar {
        width: 85%;
        max-width: 280px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .code-window {
        max-width: 100%;
    }
    
    .code-body {
        padding: 16px;
        font-size: 11px;
    }

    .back-to-about {
        right: 14px;
        bottom: 132px;
        width: 46px;
        height: 46px;
        font-size: 24px;
    }
}