/* ================================================
   INTERACTIVE TERMINAL PORTFOLIO
   Apple Terminal-inspired with command simulation
   ================================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Apple Terminal Inspired */
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-text: #111111;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-border: #e0e0e0;
    --color-border-dark: #cccccc;
    --color-accent: #222222;
    
    /* Terminal Window Colors */
    --color-red: #ff5f56;
    --color-yellow: #ffbd2e;
    --color-green: #27c93f;
    
    /* Font Stack - SF Mono / Menlo / System Monospace */
    --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Monaco', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-window: 10px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    max-width: 100vw;
}

/* === ASCII BACKGROUND PATTERN === */
.ascii-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.03;
    background-image: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 20px,
        var(--color-text-tertiary) 20px,
        var(--color-text-tertiary) 21px
    );
}

/* === TERMINAL WINDOW === */
.terminal-window {
    position: relative;
    max-width: 1200px;
    min-height: calc(100vh - 4rem);
    margin: 2rem auto;
    background-color: var(--color-bg);
    border-radius: var(--radius-window);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.08),
        0 0 0 1px var(--color-border);
    z-index: 10;
    overflow: hidden;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* === WINDOW HEADER === */
.window-header {
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.window-controls {
    display: flex;
    gap: 0.5rem;
}

.control-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    transition: transform var(--transition-fast);
    cursor: pointer;
}

.control-btn:hover {
    transform: scale(1.1);
}

.control-red {
    background-color: var(--color-red);
}

.control-yellow {
    background-color: var(--color-yellow);
}

.control-green {
    background-color: var(--color-green);
}

.window-title {
    color: var(--color-text-secondary);
    font-size: 12px;
    letter-spacing: 0.5px;
}

/* === TABS === */
.tabs-container {
    display: flex;
    flex: 1;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.tabs-container::-webkit-scrollbar {
    display: none;
}

.tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 1rem;
    background-color: rgba(0, 0, 0, 0.05);
    border-right: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.tab:hover {
    background-color: rgba(0, 0, 0, 0.08);
}

.tab.active {
    background-color: var(--color-bg);
}

.tab-title {
    color: var(--color-text-secondary);
    font-size: 12px;
    letter-spacing: 0.5px;
}

.tab.active .tab-title {
    color: var(--color-text);
}

.tab-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    color: var(--color-text-tertiary);
    font-size: 10px;
    transition: all var(--transition-fast);
    margin-left: 0.25rem;
}

.tab-close:hover {
    background-color: var(--color-border-dark);
    color: var(--color-text);
}

/* === TERMINAL CONTENT WRAPPER === */
.terminal-content-wrapper {
    position: relative;
    flex: 1;
    overflow: hidden;
}

/* === TERMINAL CONTENT === */
.terminal-content {
    padding: var(--spacing-md);
    flex: 1;
    display: none;
    flex-direction: column;
    overflow: hidden;
    overflow-x: hidden;
    max-width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.terminal-content.active {
    display: flex;
}

/* === HEADER / NAVIGATION === */
.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
    gap: var(--spacing-sm);
}

.logo {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--color-text);
    text-align: center;
}

.logo-divider {
    color: var(--color-text-tertiary);
    margin: 0 0.5rem;
}

.nav {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: color var(--transition-base);
    position: relative;
    padding: 0.25rem 0.5rem;
}

.nav-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text);
    transition: width var(--transition-base);
}

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

.nav-btn:hover::after {
    width: 100%;
}

.nav-btn.active {
    color: var(--color-text);
    font-weight: 600;
}

.nav-btn[data-command="home"] {
    display: none;
}

/* === TERMINAL OUTPUT AREA === */
.terminal-output-area {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-sm);
    max-width: 100%;
}

/* Custom scrollbar */
.terminal-output-area::-webkit-scrollbar {
    width: 8px;
}

.terminal-output-area::-webkit-scrollbar-track {
    background-color: var(--color-bg-alt);
}

.terminal-output-area::-webkit-scrollbar-thumb {
    background-color: var(--color-border-dark);
    border-radius: 4px;
}

.terminal-output-area::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-text-tertiary);
}

/* === COMMAND BLOCKS === */
.command-block {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.4s ease;
}

.command-block.initial-block {
    text-align: center;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.command-line {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
}

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

.typed-command {
    color: var(--color-text);
    font-weight: 500;
}

.command-output {
    padding-left: var(--spacing-sm);
    color: var(--color-text-secondary);
    overflow-x: auto;
    max-width: 100%;
}

.command-output::-webkit-scrollbar {
    height: 4px;
}

.command-output::-webkit-scrollbar-track {
    background-color: var(--color-bg-alt);
}

.command-output::-webkit-scrollbar-thumb {
    background-color: var(--color-border-dark);
    border-radius: 2px;
}

/* === ASCII ART === */
.ascii-art {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.ascii-logo {
    font-size: 10px;
    line-height: 1.2;
    color: var(--color-text);
    font-weight: 500;
    display: inline-block;
    text-align: left;
    max-width: 100%;
    overflow: hidden;
}

.ascii-logo-small {
    font-size: 8px;
    line-height: 1.2;
    color: var(--color-text);
    font-weight: 500;
    display: inline-block;
    text-align: left;
}

/* === WELCOME TEXT === */
.welcome-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    text-align: center;
}

.welcome-text p {
    margin-bottom: 0.5rem;
}

.hint {
    margin-top: var(--spacing-sm);
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.cmd-hint {
    color: var(--color-text);
    padding: 0.15rem 0.4rem;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

/* === COMMAND LIST === */
.command-list {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.command-list li {
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
}

.cmd-name {
    color: var(--color-text);
    font-weight: 500;
    padding: 0.15rem 0.4rem;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

/* === CONTENT SECTIONS === */
.content-section {
    line-height: 1.8;
}

.content-section h3 {
    color: var(--color-text-tertiary);
    font-size: 13px;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.content-text p {
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

/* === CODE BLOCK === */
.code-block {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    font-size: 13px;
    line-height: 1.8;
    color: var(--color-text);
    margin: var(--spacing-sm) 0;
    overflow-x: auto;
    white-space: pre;
    max-width: 100%;
}

.code-block::-webkit-scrollbar {
    height: 6px;
}

.code-block::-webkit-scrollbar-track {
    background-color: var(--color-bg-alt);
    border-radius: 3px;
}

.code-block::-webkit-scrollbar-thumb {
    background-color: var(--color-border-dark);
    border-radius: 3px;
}

.code-block::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-text-tertiary);
}

/* === PROJECTS LIST === */
.projects-list {
    display: grid;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.project-item {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs);
    transition: all var(--transition-base);
}

.project-item {
    cursor: pointer;
}

.project-item:hover {
    border-color: var(--color-border-dark);
    transform: translateX(4px);
}

.project-header {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    align-items: flex-start;
}

.project-icon {
    font-size: 8px;
    line-height: 1.2;
    color: var(--color-text);
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.project-info {
    flex: 1;
}

.project-info h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.15rem;
    line-height: 1.3;
}

.project-date {
    font-size: 10px;
    color: var(--color-text-tertiary);
    margin-bottom: 0.2rem;
}

.project-desc {
    color: var(--color-text-secondary);
    font-size: 11px;
    line-height: 1.5;
    margin-bottom: var(--spacing-xs);
    overflow-x: auto;
    white-space: nowrap;
    padding-right: var(--spacing-xs);
}

.project-desc::-webkit-scrollbar {
    height: 4px;
}

.project-desc::-webkit-scrollbar-track {
    background-color: var(--color-bg-alt);
}

.project-desc::-webkit-scrollbar-thumb {
    background-color: var(--color-border-dark);
    border-radius: 2px;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.project-link {
    font-size: 12px;
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
}

.project-link:hover {
    color: var(--color-text-secondary);
    transform: translateX(2px);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    font-size: 11px;
    padding: 0.2rem 0.6rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
}

/* === CONTACT INFO === */
.contact-info {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.contact-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 13px;
    transition: all var(--transition-base);
    display: inline-block;
}

.contact-link:hover {
    transform: translateX(4px);
    color: var(--color-text-secondary);
}

/* === ASCII DECORATION === */
.ascii-decoration {
    margin-top: var(--spacing-sm);
}

.ascii-decoration pre {
    font-size: 10px;
    line-height: 1.2;
    color: var(--color-border-dark);
}

/* === ERROR MESSAGE === */
.error-output {
    color: var(--color-red);
    padding-left: var(--spacing-sm);
    font-size: 13px;
}

/* === TYPING CURSOR === */
.typing-cursor {
    display: inline-block;
    width: 8px;
    height: 14px;
    background-color: var(--color-text);
    margin-left: 2px;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 1024px) {
    .terminal-window {
        margin: 1rem;
        min-height: calc(100vh - 2rem);
    }
}

@media (max-width: 768px) {
    .terminal-window {
        margin: 0.5rem;
        min-height: calc(100vh - 1rem);
    }
    
    .terminal-content {
        padding: var(--spacing-sm);
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-btn {
        padding: 0.25rem 0;
        font-size: 12px;
    }
    
    .ascii-logo {
        font-size: 7px;
    }
    
    .ascii-logo-small {
        font-size: 6px;
    }
    
    /* Project cards adjustments for tablets */
    .project-item {
        padding: var(--spacing-xs);
    }
    
    .project-info h4 {
        font-size: 11px;
    }
    
    .project-desc {
        font-size: 10px;
    }
    
    .project-tags {
        flex-wrap: wrap;
    }
    
    .tag {
        font-size: 9px;
        padding: 0.15rem 0.4rem;
    }
}

@media (max-width: 480px) {
    .terminal-window {
        border-radius: var(--radius-md);
        margin: 0.25rem;
    }
    
    .window-header {
        padding: 0.5rem;
    }
    
    .window-title {
        font-size: 10px;
    }
    
    .logo {
        font-size: 12px;
    }
    
    .ascii-logo {
        font-size: 5px;
    }
    
    .ascii-logo-small {
        font-size: 4px;
    }
    
    /* Project cards adjustments for mobile */
    .projects-list {
        gap: 0.5rem;
    }
    
    .project-item {
        padding: 0.5rem;
        border-radius: var(--radius-sm);
    }
    
    .project-header {
        gap: 0.4rem;
    }
    
    .project-icon {
        width: 24px;
        height: 24px;
        font-size: 7px;
    }
    
    .project-info h4 {
        font-size: 11px;
        margin-bottom: 0.1rem;
    }
    
    .project-date {
        font-size: 9px;
        margin-bottom: 0.15rem;
    }
    
    .project-desc {
        font-size: 10px;
        line-height: 1.4;
        margin-bottom: 0.4rem;
    }
    
    .project-tags {
        gap: 0.25rem;
        flex-wrap: wrap;
    }
    
    .tag {
        font-size: 8px;
        padding: 0.15rem 0.35rem;
    }
    
    .project-links {
        gap: 0.4rem;
        flex-wrap: wrap;
    }
    
    .project-link {
        font-size: 9px;
        padding: 0.2rem 0.4rem;
    }
    
    /* Tab system adjustments */
    .tabs-container {
        gap: 0;
    }
    
    .tab {
        padding: 0.4rem 0.6rem;
        min-width: auto;
    }
    
    .tab-title {
        font-size: 10px;
    }
    
    .tab-close {
        font-size: 12px;
        width: 16px;
        height: 16px;
    }
    
    /* Content sections adjustments */
    .content-section {
        line-height: 1.6;
    }
    
    .content-section h3 {
        font-size: 12px;
        margin-bottom: 0.5rem;
    }
    
    .content-section p {
        font-size: 11px;
        line-height: 1.6;
    }
    
    .code-block {
        font-size: 10px;
        padding: 0.5rem;
        line-height: 1.5;
    }
    
    /* Header adjustments */
    .header {
        padding: var(--spacing-sm) 0;
        margin-bottom: var(--spacing-sm);
    }
    
    .welcome-text {
        font-size: 11px;
        line-height: 1.6;
    }
}

/* === SELECTION STYLING === */
::selection {
    background-color: var(--color-text);
    color: var(--color-bg);
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}