/* CSS Variables */
:root {
    --bg-color: #111827;
    --text-color: #f3f4f6;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-text-color: #f3f4f6;
    --card-subtext-color: #9ca3af;
    --input-bg: #1f2937;
    --input-border: #374151;
    --header-text: #ffffff;
    --link-color: #a78bfa;
    --link-hover: #c4b5fd;
}

.light-mode {
    --bg-color: #f9fafb;
    --text-color: #111827;
    --glass-bg: rgba(0, 0, 0, 0.05);
    --glass-border: rgba(0, 0, 0, 0.1);
    --card-text-color: #1f2937;
    --card-subtext-color: #4b5563;
    --input-bg: #e5e7eb;
    --input-border: #d1d5db;
    --header-text: #111827;
    --link-color: #8b5cf6;
    --link-hover: #6d28d9;
}

/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    cursor: none;
    overflow-x: hidden;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Container */
.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .container {
        max-width: 640px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

/* Custom Cursor */
.custom-cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 20px;
    height: 20px;
    border: 2px solid var(--link-color);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
    z-index: 9999;
}

.custom-cursor.grow {
    width: 40px;
    height: 40px;
    background-color: rgba(167, 139, 250, 0.2);
}

/* Gradient Background */
.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at top left, rgba(12, 74, 110, 0.5), transparent 40%),
                radial-gradient(circle at bottom right, rgba(107, 33, 168, 0.5), transparent 40%);
    animation: gradient-move 20s ease-in-out infinite alternate;
}

@keyframes gradient-move {
    from {
        transform: translate(0, 0);
    }
    to {
        transform: translate(20%, 20%);
    }
}

/* Glass Effect */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    transition: background-color 0.3s, border-color 0.3s;
}

/* Scene Container */
#scene-container {
    width: 100%;
    height: 400px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    filter: drop-shadow(0 0 2rem #9333ea);
    cursor: grab;
}

#scene-container:active {
    cursor: grabbing;
}

/* Hero Title */
.hero-title {
    text-shadow: 0 0 15px rgba(167, 139, 250, 0.5), 0 0 30px rgba(167, 139, 250, 0.3);
}

/* Theme Toggle Button */
.theme-toggle-button svg {
    transition: transform 0.3s ease-in-out;
}

.light-mode .theme-toggle-button .moon-icon {
    transform: scale(0);
}

.light-mode .theme-toggle-button .sun-icon {
    transform: scale(1);
}

.theme-toggle-button .sun-icon {
     transform: scale(0);
}

/* Success Modal */
#success-modal.hidden {
    display: none;
}

/* Scroll Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Code Box Styles */
.code-box {
    background-color: #282c34;
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    font-family: 'Fira Code', monospace;
}

.code-header {
    display: flex;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid #4a5568;
    margin-bottom: 1rem;
}

.code-dot {
    height: 12px;
    width: 12px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.code-dot.red { background-color: #fc5c65; }
.code-dot.yellow { background-color: #fdbb2d; }
.code-dot.green { background-color: #26de81; }

.code-content .token-keyword { color: #c678dd; }
.code-content .token-variable { color: #61afef; }
.code-content .token-string { color: #98c379; }
.code-content .token-boolean { color: #d19a66; }
.code-content .token-function { color: #e5c07b; }
.code-content .token-comment { color: #5c6370; font-style: italic; }
.code-content .token-punctuation { color: #abb2bf; }

/* Mobile Menu */
.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.mobile-menu.active {
    max-height: 500px;
}

/* Skills Progress Bar */
.skill-bar {
    height: 8px;
    background: var(--input-bg);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #8b5cf6, #c084fc);
    border-radius: 4px;
    transition: width 1s ease-out;
    width: 0;
}

.skill-progress.animate {
    width: var(--progress-width);
}

/* Timeline */
.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #8b5cf6, transparent);
}

.timeline-dot {
    width: 12px;
    height: 12px;
    background: #8b5cf6;
    border-radius: 50%;
    position: absolute;
    left: -5px;
    top: 8px;
    box-shadow: 0 0 0 4px var(--bg-color), 0 0 0 6px #8b5cf6;
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #8b5cf6, #c084fc);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loading-screen.hide {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid var(--glass-border);
    border-top-color: #8b5cf6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Tech Badge */
.tech-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
    font-size: 0.75rem;
    color: #c084fc;
    margin: 4px;
}

/* Particle Canvas */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
}

/* Typing Animation */
.typing-animation::after {
    content: '|';
    animation: blink 0.7s infinite;
}

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

/* Project Image */
.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="40" fill="white" opacity="0.3">💻</text></svg>') center/50% no-repeat;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Media Queries */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    #scene-container {
        height: 300px;
    }
    
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    /* Better spacing on tablets */
    section {
        padding: 3rem 0;
    }
    
    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
    
    /* Adjust grid layouts */
    .grid {
        gap: 1.5rem;
    }
    
    /* Adjust code box */
    .code-box {
        font-size: 0.75rem;
    }
    
    /* Make buttons full width on mobile */
    .flex.flex-wrap.gap-4 a {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem !important;
        line-height: 1.2;
    }
    
    #scene-container {
        height: 250px;
    }
    
    /* Reduce padding on mobile */
    section {
        padding: 2rem 0;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    /* Adjust font sizes */
    h2 {
        font-size: 1.875rem !important;
    }
    
    h3 {
        font-size: 1.25rem !important;
    }
    
    p {
        font-size: 0.95rem;
    }
    
    /* Better spacing for cards */
    .glass-effect {
        padding: 1rem;
    }
    
    /* Stack timeline better */
    .timeline-item {
        padding-left: 1.5rem !important;
    }
    
    /* Adjust buttons */
    a.bg-purple-600,
    a.border-2 {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    /* Project images */
    .project-image {
        height: 150px;
    }
    
    /* Scroll to top button */
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    /* Code box adjustments */
    .code-box {
        padding: 0.75rem;
        font-size: 0.7rem;
    }
    
    .code-header {
        padding-bottom: 0.5rem;
        margin-bottom: 0.5rem;
    }
    
    /* Tech badges */
    .tech-badge {
        padding: 3px 8px;
        font-size: 0.65rem;
    }
    
    /* Modal adjustments */
    #success-modal .glass-effect {
        margin: 1rem;
        max-width: calc(100% - 2rem);
    }
}

@media (max-width: 480px) {
    /* Extra small devices */
    .hero-title {
        font-size: 1.5rem !important;
    }
    
    h2 {
        font-size: 1.5rem !important;
    }
    
    /* Navigation adjustments */
    nav {
        padding: 0.5rem 1rem !important;
    }
    
    nav a.text-xl {
        font-size: 1rem !important;
    }
    
    /* Hero buttons */
    .flex.flex-wrap.gap-4 {
        gap: 0.75rem !important;
    }
    
    /* Form inputs */
    input, textarea {
        font-size: 16px !important; /* Prevents zoom on iOS */
    }
    
    /* Reduce scene container further */
    #scene-container {
        height: 200px;
    }
    
    /* Footer text */
    footer p {
        font-size: 0.85rem;
    }
}

/* Landscape mode on mobile */
@media (max-height: 600px) and (orientation: landscape) {
    main.h-screen {
        height: auto;
        min-height: 100vh;
        padding: 6rem 0 2rem;
    }
    
    #scene-container {
        height: 200px;
        position: relative;
        transform: none;
    }
}

/* Large screens */
@media (min-width: 1280px) {
    .container {
        max-width: 1280px;
    }
}

@media (min-width: 1536px) {
    .container {
        max-width: 1400px;
    }
}

/* Print styles */
@media print {
    .custom-cursor,
    .gradient-bg,
    #particles-canvas,
    .scroll-top,
    .hamburger,
    #theme-toggle {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}