/* ==========================================
   VARIABLES & RESET
   ========================================== */
:root {
    --color-bg: #0a0a0a;
    --color-text: #e8e8e8;
    --color-text-muted: #888888;
    --color-accent: #00ff88;
    --color-accent-dim: #00cc6a;
    --color-card-bg: #141414;
    --color-border: #222222;
    
    --font-mono: 'Courier New', Courier, monospace;
    --font-pixel: 'Press Start 2P', cursive;
    --font-retro: 'VT323', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 18px;
    overflow-x: hidden;
}

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

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-sm);
}

.large-text {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.highlight {
    color: var(--color-accent);
    position: relative;
    display: inline-block;
}

strong {
    color: var(--color-accent);
    font-weight: 600;
}

/* ==========================================
   LAYOUT
   ========================================== */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.content-block {
    max-width: 800px;
    margin: 0 auto;
}

/* ==========================================
   LOGO
   ========================================== */
.logo-container {
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    z-index: 1000;
    opacity: 0;
    animation: fadeIn 1s ease forwards 0.5s;
}

.ascii-logo {
    font-family: var(--font-mono);
    font-size: clamp(0.5rem, 1vw, 0.7rem);
    color: var(--color-accent);
    line-height: 1;
    margin: 0;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
    font-weight: bold;
    transition: var(--transition-fast);
    cursor: pointer;
}

.ascii-logo:hover {
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.8);
    transform: scale(1.05);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-text .cycling-text {
    font-family: var(--font-pixel);
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--color-accent);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    min-height: 5em;
    display: block;
    text-align: center;
    text-transform: none;
    font-weight: 400;
}

.cycling-text .text-constant {
    display: block;
    margin-bottom: var(--spacing-sm);
}

.cycling-text .text-typewriter {
    display: inline-block;
    min-width: 400px;
    min-height: 1.8em;
    text-align: left;
    margin-top: var(--spacing-sm);
    transition: opacity 0.2s ease-in-out;
}

@media (max-width: 768px) {
    .cycling-text .text-typewriter {
        min-width: 280px;
    }
}

.cycling-text .cursor {
    display: inline-block;
    animation: blink 1s step-end infinite;
    margin-left: 2px;
}

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

.fade-in {
    animation: fadeInUp 1s ease forwards 0.3s;
}

.fade-in-delay {
    animation: fadeInUp 1s ease forwards 0.8s;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease forwards 1.5s;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-accent);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* ==========================================
   ASCII DECORATIONS
   ========================================== */
.ascii-decoration {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.ascii-decoration pre,
.ascii-signature pre {
    font-family: var(--font-mono);
    font-size: clamp(0.5rem, 1vw, 0.75rem);
    color: var(--color-accent);
    line-height: 1.2;
    display: inline-block;
    margin: 0;
    text-align: center;
}

.ascii-bracket {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 1.2em;
}

.ascii-divider {
    color: var(--color-accent);
    font-family: var(--font-mono);
    margin: var(--spacing-sm) 0;
    letter-spacing: 0.2em;
}

/* ==========================================
   SECTION STYLES
   ========================================== */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

/* Intro Section */
.intro {
    background: linear-gradient(180deg, var(--color-bg) 0%, #0f0f0f 100%);
}

/* Current Work Section */
.current {
    background: #0f0f0f;
}

/* Interests Section */
.interests {
    background: var(--color-bg);
    padding: var(--spacing-xl) var(--spacing-md);
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.interest-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    transition: var(--transition-fast);
    cursor: default;
}

.interest-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    filter: grayscale(1);
    transition: var(--transition-fast);
}

.interest-card:hover .card-icon {
    filter: grayscale(0);
    transform: scale(1.1);
}

/* Philosophy Section */
.philosophy {
    background: linear-gradient(180deg, var(--color-bg) 0%, #0a0a0a 100%);
    padding: var(--spacing-xl) var(--spacing-md);
}

.philosophy-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.philosophy-cards {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.phil-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    border-radius: 12px;
    position: relative;
    transition: var(--transition-smooth);
}

.phil-card:hover {
    border-color: var(--color-accent);
    transform: translateX(10px);
}

.card-number {
    font-family: var(--font-mono);
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.3;
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-weight: 700;
}

/* Contact Section */
.contact {
    min-height: 70vh;
    background: var(--color-bg);
}

.contact-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1.2rem 2.5rem;
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    margin-top: var(--spacing-lg);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    transition: var(--transition-fast);
    z-index: -1;
}

.cta-button:hover::before {
    left: 0;
}

.cta-button:hover {
    color: var(--color-bg);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 255, 136, 0.3);
}

.button-arrow {
    transition: transform 0.3s ease;
    display: inline-block;
}

.cta-button:hover .button-arrow {
    transform: translateX(5px);
}

/* Footer */
.footer {
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    border-top: 1px solid var(--color-border);
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: var(--transition-smooth);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 768px) {
    .logo-container {
        top: var(--spacing-sm);
        left: var(--spacing-sm);
    }
    
    .ascii-logo {
        font-size: 0.45rem;
    }
    
    .section {
        padding: var(--spacing-lg) var(--spacing-sm);
        min-height: auto;
    }
    
    .interests-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .phil-card {
        padding: var(--spacing-md);
    }
    
    .card-number {
        font-size: 2rem;
    }
    
    .ascii-art {
        font-size: 0.3rem;
    }
    
    .ascii-decoration pre {
        font-size: 0.5rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 16px;
    }
    
    .cta-button {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

/* ==========================================
   CURSOR EFFECTS (OPTIONAL DELIGHT)
   ========================================== */
@media (hover: hover) and (pointer: fine) {
    .cursor-dot {
        width: 8px;
        height: 8px;
        background: var(--color-accent);
        border-radius: 50%;
        position: fixed;
        pointer-events: none;
        z-index: 9999;
        transition: transform 0.15s ease;
    }
    
    .cursor-outline {
        width: 40px;
        height: 40px;
        border: 2px solid var(--color-accent);
        border-radius: 50%;
        position: fixed;
        pointer-events: none;
        z-index: 9998;
        transition: all 0.2s ease;
    }
}

/* Print Styles */
@media print {
    .scroll-indicator,
    .cursor-dot,
    .cursor-outline {
        display: none;
    }
}