/* ===================================
   CSS Reset & Base Styles
   =================================== */
:root {
    /* Color Palette - Dark Theme (Default) */
    --primary-color: #00e8e8;
    --primary-dark: #00b0b0;
    --secondary-color: #ff47c7;
    --accent-color: #fdff00;
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --section-padding: 100px;
    --container-max-width: 1200px;

    /* Transitions */
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(0, 232, 232, 0.3);
}

/* Cyberpunk Theme */
body[data-theme="cyberpunk"] {
    --primary-color: #ff00ff;
    --primary-dark: #cc00cc;
    --secondary-color: #00ffff;
    --accent-color: #ffff00;
    --bg-primary: #000000;
    --bg-secondary: #0d0015;
    --bg-card: #1a0028;
    --text-primary: #ffffff;
    --text-secondary: #d4a0ff;
    --shadow-glow: 0 0 30px rgba(255, 0, 255, 0.5);
}

/* Minimal Theme */
body[data-theme="minimal"] {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #7c3aed;
    --accent-color: #06b6d4;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.2);
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
    transition: background-color 0.5s ease, color 0.5s ease;
}

body.loaded {
    overflow-x: hidden;
}

/* ===================================
   Preloader
   =================================== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    text-align: center;
}

.preloader-logo {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.preloader-letter {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: letterFloat 1s ease-in-out infinite alternate;
}

.preloader-letter:nth-child(2) {
    animation-delay: 0.2s;
}

@keyframes letterFloat {
    from {
        transform: translateY(0px);
    }
    to {
        transform: translateY(-20px);
    }
}

.preloader-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto 1rem;
}

.preloader-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    animation: progressLoad 2s ease-in-out forwards;
}

@keyframes progressLoad {
    to {
        width: 100%;
    }
}

.preloader-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

/* ===================================
   Custom Cursor
   =================================== */
.custom-cursor {
    pointer-events: none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10000;
    mix-blend-mode: difference;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    position: absolute;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background 0.2s;
}

.cursor-outline {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: absolute;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s, border-color 0.3s;
}

.custom-cursor.hover .cursor-dot {
    width: 30px;
    height: 30px;
    background: var(--secondary-color);
}

.custom-cursor.hover .cursor-outline {
    width: 60px;
    height: 60px;
    border-color: var(--secondary-color);
}

@media (max-width: 768px) {
    body {
        cursor: auto;
    }
    .custom-cursor {
        display: none;
    }
}

/* ===================================
   Utility Classes
   =================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 4rem;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 232, 232, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-secondary);
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* ===================================
   Navigation Bar
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--primary-color);
    transition: all var(--transition-base);
}

.nav-logo:hover {
    color: var(--primary-dark);
}

.logo-text {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    position: relative;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* Theme Toggle Button */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    font-size: 1.125rem;
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: rotate(180deg) scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* Theme Modal */
.theme-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.theme-modal.active {
    opacity: 1;
    visibility: visible;
}

.theme-modal-content {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.theme-modal.active .theme-modal-content {
    transform: scale(1);
}

.theme-modal-content h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.theme-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.theme-option {
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.theme-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.theme-option.active {
    border-color: var(--primary-color);
    background: rgba(0, 232, 232, 0.1);
}

.theme-preview {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
}

.theme-dark {
    background: linear-gradient(135deg, #00e8e8, #ff47c7);
}

.theme-cyberpunk {
    background: linear-gradient(135deg, #ff00ff, #00ffff);
}

.theme-minimal {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.theme-option span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

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

#particles-canvas {
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}

.hero-greeting {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.8s ease;
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-roles {
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-weight: 400;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    animation: fadeInUp 0.8s ease 0.4s backwards;
    min-height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.typing-text {
    color: var(--primary-color);
    font-weight: 600;
    min-width: 200px;
    display: inline-block;
}

.typing-cursor {
    color: var(--accent-color);
    font-weight: 300;
    animation: blink 0.7s infinite;
    margin-left: 3px;
}

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

.role-separator {
    margin: 0 0.75rem;
    color: var(--accent-color);
}

.hero-tagline {
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--primary-color);
    max-width: 700px;
    margin: 0 auto 1rem;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease 0.5s backwards;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.btn-collaborate {
    position: relative;
    overflow: hidden;
}

.btn-collaborate::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.8s backwards;
}

.hero-social {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 3rem;
    animation: fadeInUp 0.8s ease 1s backwards;
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1.25rem;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: fadeInUp 0.8s ease 1.2s backwards;
}

.scroll-text {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-arrow {
    font-size: 1.5rem;
    color: var(--accent-color);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

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

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--bg-secondary);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-paragraph {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

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

.about-interests {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.interest-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 12px;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.interest-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.interest-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 232, 232, 0.1);
    border-radius: 12px;
    color: var(--primary-color);
    font-size: 1.75rem;
}

.interest-content h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.interest-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Philosophy / Why I Build Section
   =================================== */
.philosophy {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.philosophy::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 232, 232, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255, 71, 199, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.philosophy-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: start;
    position: relative;
    z-index: 1;
}

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

.philosophy-quote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--primary-color);
    line-height: 1.6;
    margin: 0;
    padding: 2rem;
    background: rgba(0, 232, 232, 0.05);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 12px 12px 0;
    position: relative;
}

.philosophy-quote::before {
    content: '"';
    font-size: 4rem;
    position: absolute;
    top: -10px;
    left: 15px;
    color: var(--primary-color);
    opacity: 0.3;
    font-family: Georgia, serif;
}

.philosophy-paragraph {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.philosophy-paragraph strong {
    color: var(--primary-color);
}

.philosophy-paragraph em {
    color: var(--secondary-color);
    font-style: italic;
}

.philosophy-pillars {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pillar-item {
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.pillar-item:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.pillar-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 232, 232, 0.1);
    border-radius: 10px;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pillar-item h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.pillar-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .philosophy-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .philosophy-quote {
        font-size: 1.25rem;
        padding: 1.5rem;
    }

    .pillar-item:hover {
        transform: translateY(-5px);
    }
}

/* ===================================
   Skills Section
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.category-header h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--text-primary);
}

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

.skill-tag {
    padding: 0.5rem 1rem;
    background: rgba(0, 232, 232, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(0, 232, 232, 0.2);
    transition: all var(--transition-base);
}

.skill-tag:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

/* ===================================
   Projects Section
   =================================== */
.projects {
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

/* 3D Tilt Effect */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.tilt-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
                rgba(0, 232, 232, 0.15),
                transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 1;
    border-radius: 12px;
}

.tilt-card:hover::before {
    opacity: 1;
}

.project-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 232, 232, 0.1), rgba(255, 71, 199, 0.1));
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(0, 232, 232, 0.3);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--bg-primary);
    border-radius: 50%;
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.project-link:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.project-content {
    padding: 2rem;
}

.project-label {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 232, 232, 0.15);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 20px;
    margin-bottom: 0.75rem;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-description {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Case Study Styling */
.project-case-study {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.case-study-item {
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.case-study-item:nth-child(2) {
    border-left-color: var(--secondary-color);
}

.case-study-item:nth-child(3) {
    border-left-color: var(--accent-color);
}

.case-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.case-study-item:nth-child(2) .case-label {
    color: var(--secondary-color);
}

.case-study-item:nth-child(3) .case-label {
    color: var(--accent-color);
}

.case-study-item p {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin: 0;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    padding: 0.375rem 0.75rem;
    background: rgba(255, 71, 199, 0.1);
    color: var(--secondary-color);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(255, 71, 199, 0.2);
}

.projects-cta {
    text-align: center;
    padding: 3rem 0;
}

.projects-cta p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* ===================================
   Contact Section
   =================================== */
.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.method-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 232, 232, 0.1);
    border-radius: 12px;
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.method-details h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.method-details a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.method-details a:hover {
    color: var(--primary-color);
}

.contact-form-container {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group label {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 232, 232, 0.1);
}

.form-group input.valid,
.form-group textarea.valid {
    border-color: var(--primary-color);
}

.form-group input.invalid,
.form-group textarea.invalid {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(255, 71, 199, 0.1);
}

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

.btn-submit {
    margin-top: 1rem;
    width: 100%;
}

.form-status {
    text-align: center;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 500;
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(0, 232, 232, 0.1);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.form-status.error {
    display: block;
    background: rgba(255, 71, 199, 0.1);
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

.form-privacy {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 1rem;
}

.form-privacy::before {
    content: '\f023';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--bg-secondary);
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-quote {
    font-style: italic;
    margin-top: 0.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-size: 1.125rem;
    transition: all var(--transition-base);
}

.footer-link:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--bg-primary);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ===================================
   Enhanced Scroll Animations
   =================================== */
.section {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Hero section should be visible immediately */
.hero {
    opacity: 1 !important;
    transform: none !important;
}

/* Skill Tags Animation */
.skill-tag {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease forwards;
}

.skill-category:hover .skill-tag {
    animation: tagPop 0.3s ease;
}

@keyframes tagPop {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.skill-tag:nth-child(1) { animation-delay: 0.1s; }
.skill-tag:nth-child(2) { animation-delay: 0.15s; }
.skill-tag:nth-child(3) { animation-delay: 0.2s; }
.skill-tag:nth-child(4) { animation-delay: 0.25s; }
.skill-tag:nth-child(5) { animation-delay: 0.3s; }
.skill-tag:nth-child(6) { animation-delay: 0.35s; }
.skill-tag:nth-child(7) { animation-delay: 0.4s; }
.skill-tag:nth-child(8) { animation-delay: 0.45s; }

/* Animated Gradient Background */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle,
        rgba(0, 232, 232, 0.03) 0%,
        transparent 50%);
    animation: gradientRotate 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes gradientRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Section specific animations */
.about-interests .interest-item {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

.about-interests .interest-item:nth-child(1) { animation-delay: 0.1s; }
.about-interests .interest-item:nth-child(2) { animation-delay: 0.2s; }
.about-interests .interest-item:nth-child(3) { animation-delay: 0.3s; }
.about-interests .interest-item:nth-child(4) { animation-delay: 0.4s; }

/* Project cards stagger animation */
.project-card {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }

/* Glowing text effect for headings */
.section-title {
    position: relative;
    text-shadow: 0 0 20px rgba(0, 232, 232, 0.3);
}

.section-title::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(10px);
    opacity: 0.5;
}

/* Hero name glitch effect on hover */
.hero-name {
    position: relative;
}

.hero-name:hover {
    animation: glitch 0.3s ease;
}

@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
    100% {
        transform: translate(0);
    }
}

/* Particle effect enhancement */
#particles-canvas {
    filter: blur(0.5px);
    opacity: 0.8;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    /* Theme Modal Mobile */
    .theme-options {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .theme-modal-content {
        padding: 2rem 1.5rem;
    }

    .theme-toggle {
        margin-left: 0.5rem;
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(10px);
        width: 70%;
        max-width: 300px;
        height: 100vh;
        padding: 5rem 2rem 2rem;
        transition: right var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* Hero */
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    /* About */
    .about-interests {
        grid-template-columns: 1fr;
    }

    /* Skills */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    /* Projects */
    .projects-grid {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-form-container {
        padding: 1.5rem;
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-social {
        flex-wrap: wrap;
    }

    .interest-item {
        flex-direction: column;
        text-align: center;
    }

    .scroll-indicator {
        display: none;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .navbar,
    .scroll-indicator,
    .back-to-top,
    .hero-social {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        page-break-inside: avoid;
    }
}