/* Variables */
:root {
    /* Colors */
    --bg-primary: #0f1115;
    --bg-secondary: #1a1d23;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a9b8;
    --accent-primary: #4a9eff;
    --accent-hover: #5aa5ff;
    --border-color: #2a2f39;
    --success: #4ade80;
    --warning: #facc15;
    --danger: #f87171;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Container width */
    --container-width: 1200px;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
}

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

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

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    background-image: 
        radial-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

.section-title {
    font-size: clamp(2rem, 6vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    position: relative;
    margin-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-primary), transparent);
    margin-top: var(--spacing-sm);
    border-radius: 2px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

strong {
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-md) * 1.2) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(74, 158, 255, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

/* Hero section */
.hero {
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 0;
    padding-bottom: 0;
}

.hero-content .name {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
}

.hero-content .title {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
    position: relative;
}

.hero-content .title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), transparent);
    margin-top: var(--spacing-sm);
    border-radius: 2px;
}

.hero-content .positioning {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    color: var(--text-secondary);
}

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

/* Projects section */
.projects {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(350px, 100%), 1fr));
    gap: var(--spacing-lg);
}

.project {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}

.project::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), transparent);
    opacity: 0;
    transform: scaleX(0);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

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

.project:hover::before {
    opacity: 1;
    transform: scaleX(1);
}

.project-name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    display: block;
    line-height: 1.3;
}

.project-status {
    display: inline-flex;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid currentColor;
}

.project-status.live {
    background-color: rgba(74, 158, 255, 0.1);
    color: var(--accent-primary);
}

.project-status.live::before {
    background-color: var(--accent-primary) !important;
}

.project-status.building {
    background-color: rgba(250, 204, 21, 0.1);
    color: var(--warning);
}

.project-status.building::before {
    background-color: var(--warning) !important;
}

.project-status.building::before {
    background-color: var(--warning) !important;
}

.project-description {
    margin: var(--spacing-sm) 0;
    font-size: 1.1rem;
    overflow-wrap: break-word;
    hyphens: auto;
}

.project-role,
.project-tech {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.project-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Thinking section */
.thinking-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.thinking-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.thinking-item p {
    margin-bottom: 0;
}

/* Capabilities section */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
    gap: var(--spacing-md);
}

.capability {
    position: relative;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.capability:hover {
    background-color: rgba(74, 158, 255, 0.05);
}

.capability:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.capability:hover::after {
    transform: scaleX(1);
}

.capability h3 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding-left: 1.5rem;
}

.capability h3::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: 1.5rem;
    line-height: 1;
}

/* About section */
.about-content {
    max-width: 700px;
}

.about-content p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    overflow-wrap: break-word;
    hyphens: auto;
}

/* Contact section */
.contact-content {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.contact-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
}

.contact-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.contact-link {
    display: inline-block;
    padding: calc(var(--spacing-md) * 1.2) var(--spacing-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.contact-link:hover {
    background-color: rgba(74, 158, 255, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* Footer */
.site-footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-md: 1.25rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .section-title {
        font-size: clamp(1.8rem, 5vw, 2rem);
    }
    
    .hero-content .name {
        font-size: clamp(2.5rem, 7vw, 3rem);
    }
    
    .hero-content .title {
        font-size: 1.5rem;
    }
    
    .cta-group {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        padding: calc(var(--spacing-md) * 1.4) var(--spacing-md);
    }
    
    .thinking-content {
        grid-template-columns: 1fr;
    }
    
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-sm: 0.5rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 1.5rem;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-content .name {
        font-size: clamp(2rem, 7vw, 3rem);
    }
    
    .section-title {
        font-size: clamp(1.8rem, 5vw, 2rem);
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .animate-on-scroll {
        transition: opacity 0.4s ease-out, transform 0.4s ease-out;
    }
    
    .project-status {
        display: block;
        margin-left: 0;
        margin-top: var(--spacing-xs);
    }
    
    .contact-links {
        flex-direction: column;
    }
    
    .email-wrapper,
    .contact-link:not(.email-main) {
        width: 100%;
    }
    
    .email-main {
        flex-grow: 1;
    }
    
    .toast-notification {
        bottom: 80px;
    }
}

/* Focus styles for accessibility */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Scroll Progress Bar */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent-primary);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* Live Status Pulse Animation */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.project-status.live::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    margin-right: 8px;
    animation: pulse 1.5s infinite;
}

/* Interactive Tech Stack Pills */
.tech-pill {
    display: inline-block;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin: 0 0.25rem;
    transition: all 0.3s ease;
}

.tech-pill:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: 0 0 8px rgba(74, 158, 255, 0.3);
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.toast-notification.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Copy Button */
.email-wrapper {
    display: flex;
    align-items: stretch;
}

.email-main {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: none;
}

.copy-trigger {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.copy-trigger:hover {
    color: var(--accent-primary);
    background: rgba(74, 158, 254, 0.1);
}

/* Animation classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}