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

:root {
    --bg: #ffffff;
    --text: #000000;
    --text-light: #666666;
    --border: #e5e5e5;
    --hover: #000000;
    transition: background-color 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg: #000000;
    --text: #ffffff;
    --text-light: #999999;
    --border: #333333;
    --hover: #ffffff;
}

[data-theme="blue"] {
    --bg: #0a192f;
    --text: #64ffda;
    --text-light: #8892b0;
    --border: #233554;
    --hover: #64ffda;
}

html {
    scroll-behavior: smooth;
}

/* Smooth scroll container */
body {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 2rem 3rem;
    z-index: 1000;
    background: var(--bg);
    transition: background-color 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                border-color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-img {
    height: 2.2rem;
    width: auto;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
}

.logo:hover .logo-img {
    transform: scale(1.05);
}

/* Theme-specific logo text color */
.logo-text {
    fill: var(--text);
    transition: fill 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] .logo-text {
    fill: #000000;
}

[data-theme="dark"] .logo-text {
    fill: #ffffff;
}

[data-theme="blue"] .logo-text {
    fill: #64ffda;
}

.nav-right {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.theme-switcher {
    display: flex;
    gap: 0.3rem;
    background: rgba(0, 0, 0, 0.05);
    padding: 0.3rem;
    border-radius: 8px;
    transition: background 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] .theme-switcher {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="blue"] .theme-switcher {
    background: rgba(100, 255, 218, 0.1);
}

.theme-btn {
    background: transparent;
    border: none;
    color: var(--text);
    padding: 0.5rem 0.9rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 6px;
    font-family: inherit;
    min-width: 2.5rem;
    text-align: center;
}

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

.theme-btn.active {
    background: var(--text);
    color: var(--bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-link {
    color: var(--text);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    position: relative;
    transition: color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Vertical Menu */
.vertical-menu {
    position: fixed;
    right: 3rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    opacity: 0;
    animation: fadeInRight 0.8s ease 0.5s forwards;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}

.menu-item {
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding: 0.5rem 0;
    opacity: 0.6;
}

.menu-item:hover {
    opacity: 1;
    transform: translateX(-5px);
}

.menu-item::before {
    content: '';
    position: absolute;
    right: -15px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 1px;
    background: var(--text);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-item:hover::before,
.menu-item.active::before {
    opacity: 1;
    width: 12px;
}

.menu-item.active {
    opacity: 1;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 3rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero-dots {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, var(--text) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: 0 0;
    opacity: 0.1;
    pointer-events: none;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                background-image 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

[data-theme="dark"] .hero-dots {
    opacity: 0.15;
    background-image: radial-gradient(circle, var(--text) 1px, transparent 1px);
}

[data-theme="blue"] .hero-dots {
    opacity: 0.12;
    background-image: radial-gradient(circle, var(--text) 1px, transparent 1px);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.hero-name {
    font-size: clamp(3rem, 12vw, 8rem);
    font-weight: 400;
    letter-spacing: 0.15em;
    line-height: 1.1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    font-family: 'SF Mono', 'Monaco', 'Menlo', 'Courier New', 'Consolas', monospace;
    min-height: 1.2em;
    font-variant-ligatures: none;
    cursor: text;
    user-select: none;
}

.hero-name:hover {
    transform: scale(1.02);
}

.hero-name:hover .typing-cursor {
    animation: blinkCursor 1s infinite,
               fadeInCursor 0.3s ease forwards;
}

.hero-hint {
    position: absolute;
    top: -2.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--text-light);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 300;
    letter-spacing: 0.1em;
    white-space: nowrap;
    font-family: 'SF Mono', 'Monaco', 'Menlo', 'Courier New', 'Consolas', monospace;
    background: var(--bg);
    padding: 0.3rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero-name:hover .hero-hint {
    opacity: 0.8;
    transform: translateX(-50%) translateY(-5px);
}

.hero-name.typing-active {
    cursor: text;
    animation: typingPulse 2s ease-in-out infinite;
}

.hero-name.typing-active .hero-hint {
    opacity: 1;
    color: var(--text);
    border-color: var(--text);
    transform: translateX(-50%) translateY(-5px);
}

@keyframes typingPulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
    }
    50% {
        box-shadow: 0 0 20px 5px rgba(102, 126, 234, 0.2);
    }
}

.hero-name.typing-active .typing-text {
    color: var(--text);
    text-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

.hero-name.typing-error {
    animation: shakeError 0.5s ease;
}

.hero-name.typing-error .typing-text {
    color: #ef4444;
    text-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
}

@keyframes shakeError {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

.typing-text {
    display: inline-block;
    opacity: 0;
    animation: fadeInText 0.3s ease 0.5s forwards;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-name.typing-active .typing-text {
    animation: none;
    opacity: 1;
    letter-spacing: 0.1em;
}

.typing-cursor {
    display: inline-block;
    opacity: 0;
    animation: blinkCursor 1s infinite 1.8s,
               fadeInCursor 0.3s ease 1.8s forwards;
    margin-left: 0.1em;
    font-weight: 300;
    color: var(--text);
}

@keyframes fadeInText {
    to {
        opacity: 1;
    }
}

@keyframes fadeInCursor {
    to {
        opacity: 1;
    }
}

@keyframes blinkCursor {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0.3;
    }
}

.hero-tagline {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: var(--text-light);
    font-weight: 300;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(20px);
    animation: taglineReveal 1s cubic-bezier(0.4, 0, 0.2, 1) 0.7s forwards;
    transition: color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Content Container */
.content-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* Bio Section */
.bio {
    padding: 8rem 0;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.section-label {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 3rem;
    transition: color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.bio-text {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 300;
    line-height: 1.8;
    max-width: 900px;
    color: var(--text);
    letter-spacing: 0.02em;
    transition: color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 2rem;
}

.bio-text:last-child {
    margin-bottom: 0;
}

/* Services Section */
.projects {
    padding: 8rem 0;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.services-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 3rem;
    max-width: 900px;
}

.service-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateX(-20px);
    cursor: default;
}

.service-item:first-child {
    border-top: 1px solid var(--border);
}

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

.service-item:hover {
    padding-left: 1.5rem;
}

.service-item:hover .service-line {
    width: 100%;
    opacity: 1;
}

.service-name {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 300;
    letter-spacing: 0.02em;
    color: var(--text);
    transition: color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.service-item:hover .service-name {
    color: var(--hover);
}

.service-line {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 1px;
    width: 0;
    background: var(--text);
    opacity: 0;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

/* Contact Section */
.contact {
    padding: 8rem 0 12rem;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.contact-info {
    margin-top: 2rem;
}

.contact-location {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    font-weight: 300;
    color: var(--text-light);
    letter-spacing: 0.02em;
    margin-bottom: 1.5rem;
    transition: color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-link {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 300;
    color: var(--text);
    text-decoration: none;
    letter-spacing: 0.02em;
    position: relative;
    display: inline-block;
    transition: color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-link:hover::after {
    width: 100%;
}

/* Work Section */
.work {
    padding: 8rem 0;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.work-card {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 0;
    padding: 3rem 2.5rem;
    text-decoration: none;
    color: var(--text);
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
    display: flex;
    flex-direction: column;
    min-height: 320px;
}

.work-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.work-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--text);
    opacity: 0.05;
    transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.work-card:hover::before {
    left: 0;
}

.work-card:hover {
    border-color: var(--text);
    transform: translateY(-5px);
}

.work-number {
    font-size: 4rem;
    font-weight: 300;
    line-height: 1;
    color: var(--text);
    opacity: 0.15;
    position: absolute;
    top: 2rem;
    right: 2.5rem;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.work-card:hover .work-number {
    opacity: 0.3;
    transform: scale(1.1);
}

.work-content {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.work-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 400;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
    transition: color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.work-description {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-weight: 300;
    transition: color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.work-link {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text);
    opacity: 0.7;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    align-self: flex-start;
}

.work-card:hover .work-link {
    opacity: 1;
    transform: translateX(5px);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 1.5rem 1.5rem;
    }

    .nav-right {
        gap: 1.5rem;
        flex-wrap: wrap;
    }

    .theme-switcher {
        order: -1;
        width: 100%;
        justify-content: center;
        margin-bottom: 1rem;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .content-container {
        padding: 0 1.5rem;
    }

    .vertical-menu {
        right: 1rem;
        gap: 1rem;
    }

    .menu-item {
        font-size: 0.7rem;
    }

    .bio,
    .projects,
    .work,
    .contact {
        padding: 5rem 0;
    }

    .service-item {
        padding: 1.25rem 0;
    }

    .service-item:hover {
        padding-left: 1rem;
    }

    .work-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .work-card {
        padding: 2rem 1.5rem;
        min-height: 280px;
    }

    .work-number {
        font-size: 3rem;
        top: 1.5rem;
        right: 1.5rem;
    }

    .hero-name {
        letter-spacing: 0.2em;
    }

    .hero-content {
        gap: 1rem;
    }
}

/* Terminal Interface */
.terminal {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(calc(100% + 2rem));
    width: 90%;
    max-width: 700px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 2000;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'SF Mono', 'Monaco', 'Menlo', 'Courier New', 'Consolas', monospace;
    font-size: 14px;
    overflow: hidden;
}

.terminal.active {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--text);
    color: var(--bg);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 0.5rem;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
}

.terminal-title {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.terminal-body {
    padding: 1rem;
    max-height: 400px;
    overflow-y: auto;
    background: var(--bg);
}

.terminal-output {
    margin-bottom: 0.5rem;
    min-height: 1.5rem;
}

.terminal-line {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    color: var(--text);
}

.terminal-prompt {
    color: var(--text-light);
    margin-right: 0.5rem;
}

.terminal-welcome {
    color: var(--text-light);
    font-style: italic;
}

.terminal-input-line {
    display: flex;
    align-items: center;
    position: relative;
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: inherit;
    font-size: inherit;
    padding: 0;
    margin: 0;
    caret-color: var(--text);
}

.terminal-cursor {
    color: var(--text);
    animation: terminalBlink 1s infinite;
    margin-left: 2px;
}

@keyframes terminalBlink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

.terminal-output .terminal-line {
    color: var(--text);
}

.terminal-output .terminal-line.error {
    color: #ef4444;
}

.terminal-output .terminal-line.success {
    color: #10b981;
}

/* Terminal scrollbar */
.terminal-body::-webkit-scrollbar {
    width: 6px;
}

.terminal-body::-webkit-scrollbar-track {
    background: transparent;
}

.terminal-body::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

@media (max-width: 768px) {
    .terminal {
        width: 95%;
        bottom: 1rem;
        font-size: 12px;
    }

    .terminal-body {
        max-height: 300px;
        padding: 0.75rem;
    }
}