style.css

/* =============================================
   GLOBAL STYLES & RESET
   ============================================= */

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

:root {
    /* Color Palette - Dark Technical Theme */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-tertiary: #707070;
    --accent-primary: #f7931a;  /* Bitcoin orange */
    --accent-secondary: #ff9933;
    --accent-tertiary: #ffb366;
    --border-color: #2a2a2a;
    --border-accent: #3a3a3a;
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
    --font-sans: 'Work Sans', -apple-system, system-ui, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Layout */
    --max-width: 1200px;
    --nav-height: 70px;
    
    /* Effects */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(247, 147, 26, 0.15);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

::selection {
    background-color: var(--accent-primary);
    color: var(--bg-primary);
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.nav.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.logo-name {
    color: var(--text-primary);
    margin: 0 0.25rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-primary);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--accent-primary);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + 2rem) 2rem 2rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    animation: gridPulse 20s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.4; }
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-greeting {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.highlight {
    color: var(--accent-primary);
    font-weight: 500;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-tertiary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 4px;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    cursor: pointer;
}

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

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

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

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

/* Code Window */
.code-window {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.window-header {
    background-color: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

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

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--border-accent);
}

.window-dots span:nth-child(1) { background-color: #ff5f56; }
.window-dots span:nth-child(2) { background-color: #ffbd2e; }
.window-dots span:nth-child(3) { background-color: #27c93f; }

.window-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.code-content {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
}

.code-content code {
    display: block;
    color: var(--text-primary);
}

.code-keyword { color: #ff79c6; }
.code-class { color: #8be9fd; }
.code-string { color: #f1fa8c; }
.code-function { color: #50fa7b; }
.code-comment { color: var(--text-tertiary); font-style: italic; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 2px solid var(--border-accent);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    width: 4px;
    height: 8px;
    background-color: var(--accent-primary);
    border-radius: 2px;
    animation: scrollAnimation 2s infinite;
}

@keyframes scrollAnimation {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(16px); opacity: 0; }
}

/* Fade In Animations */
.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.fade-in-delay-1 {
    animation: fadeIn 0.8s ease-out 0.2s backwards;
}

.fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.4s backwards;
}

.fade-in-delay-3 {
    animation: fadeIn 0.8s ease-out 0.6s backwards;
}

.fade-in-delay-4 {
    animation: fadeIn 0.8s ease-out 0.8s backwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent-primary);
}

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

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-intro {
    font-size: 1.15rem;
    color: var(--text-primary);
    font-weight: 500;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.8;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-tertiary);
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.frame-corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-primary);
}

.frame-corner.tl { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.frame-corner.tr { top: -1px; right: -1px; border-left: none; border-bottom: none; }
.frame-corner.bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.frame-corner.br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.profile-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    border: 2px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
}

.location-tag {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.location-tag svg {
    color: var(--accent-primary);
}

/* =============================================
   SKILLS SECTION
   ============================================= */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.skill-category {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.skill-category:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.category-icon {
    width: 48px;
    height: 48px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.category-icon.learning {
    background-color: rgba(247, 147, 26, 0.1);
    border-color: var(--accent-primary);
}

.category-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-accent);
    border-radius: 4px;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background-color: rgba(247, 147, 26, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.skill-tag.learning {
    background-color: rgba(247, 147, 26, 0.05);
    border-color: var(--accent-primary);
    color: var(--accent-secondary);
}

/* =============================================
   PROJECTS SECTION
   ============================================= */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

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

.project-icon {
    width: 40px;
    height: 40px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-accent);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.project-link {
    color: var(--text-tertiary);
    transition: var(--transition-fast);
}

.project-link:hover {
    color: var(--accent-primary);
}

.project-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.tech-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background-color: rgba(247, 147, 26, 0.1);
    border: 1px solid var(--accent-primary);
    border-radius: 3px;
    color: var(--accent-secondary);
}

/* =============================================
   GOALS SECTION
   ============================================= */

.goals-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.goal-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
}

.goal-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.goal-card.primary {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(247, 147, 26, 0.05), var(--bg-secondary));
    border-color: var(--accent-primary);
}

.goal-icon {
    width: 56px;
    height: 56px;
    background-color: rgba(247, 147, 26, 0.1);
    border: 2px solid var(--accent-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.goal-card h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.goal-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.goal-card strong {
    color: var(--accent-primary);
    font-weight: 600;
}

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

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-intro {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.contact-link:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
    transform: translateX(8px);
}

.link-icon {
    width: 48px;
    height: 48px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.link-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.link-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.link-value {
    font-size: 1rem;
    color: var(--text-primary);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn-primary {
    align-self: flex-start;
}

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

.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: var(--spacing-xl);
}

.footer-content {
    text-align: center;
    color: var(--text-tertiary);
}

.footer-content p {
    margin: 0.5rem 0;
}

.footer-note {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-primary);
}

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

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .goals-content {
        grid-template-columns: 1fr;
    }
    
    .goal-card.primary {
        grid-column: span 1;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background-color: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transition: left 0.3s ease;
        border-right: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-tagline {
        font-size: 1.1rem;
    }
    
    .code-content {
        font-size: 0.8rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .nav-container {
        padding: 0 1.5rem;
    }
    
    .hero {
        padding: calc(var(--nav-height) + 1rem) 1.5rem 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-number {
        font-size: 1.2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* =============================================
   UTILITY CLASSES
   ============================================= */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}
.profile-placeholder {
    width: 180px;
    height: 180px;
    overflow: hidden;
    border: 2px solid #f7931a;
}
.profile-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}