/* CSS Variables for Theme Support */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --surface-primary: rgba(255, 255, 255, 0.05);
    --surface-secondary: rgba(255, 255, 255, 0.02);
    --surface-tertiary: rgba(255, 255, 255, 0.1);
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --particle-opacity: 0.6;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --text-primary: #1a202c;
    --text-secondary: #2d3748;
    --text-muted: #4a5568;
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --surface-primary: rgba(255, 255, 255, 0.98);
    --surface-secondary: rgba(248, 250, 252, 0.95);
    --surface-tertiary: rgba(226, 232, 240, 0.9);
    --border-color: rgba(203, 213, 225, 0.8);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --particle-opacity: 0.3;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(102, 126, 234, 0.2);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: all 0.3s ease;
}

/* Three.js Background Canvas */
#threejs-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: var(--particle-opacity);
    transition: opacity 0.3s ease;
}

/* Floating Geometric Shapes */
.floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    backdrop-filter: blur(2px);
    animation: float-around 20s infinite linear;
    transition: all 0.3s ease;
}

[data-theme="light"] .floating-shape {
    background: linear-gradient(45deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    backdrop-filter: blur(1px);
}

.floating-shape.shape-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-duration: 25s;
    animation-delay: 0s;
}

.floating-shape.shape-2 {
    width: 120px;
    height: 120px;
    top: 20%;
    right: 15%;
    animation-duration: 30s;
    animation-delay: -5s;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
}

.floating-shape.shape-3 {
    width: 60px;
    height: 60px;
    top: 60%;
    left: 5%;
    animation-duration: 35s;
    animation-delay: -10s;
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    border-radius: 0;
}

.floating-shape.shape-4 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    right: 10%;
    animation-duration: 40s;
    animation-delay: -15s;
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
    border-radius: 0;
}

.floating-shape.shape-5 {
    width: 90px;
    height: 90px;
    top: 80%;
    left: 80%;
    animation-duration: 28s;
    animation-delay: -20s;
    border-radius: 20px;
    transform: rotate(45deg);
}

@keyframes float-around {
    0% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(30px, -30px) rotate(90deg); }
    50% { transform: translate(-20px, -60px) rotate(180deg); }
    75% { transform: translate(-40px, -20px) rotate(270deg); }
    100% { transform: translate(0, 0) rotate(360deg); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    z-index: 10000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo Design */
.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon {
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    animation: logo-pulse 3s ease-in-out infinite;
}

.logo-icon:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.logo-a {
    position: relative;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.a-left, .a-right {
    position: absolute;
    width: 3px;
    height: 18px;
    background: white;
    border-radius: 1.5px;
    transform-origin: bottom center;
}

.a-left {
    transform: rotate(20deg);
    left: 3px;
    top: 3px;
}

.a-right {
    transform: rotate(-20deg);
    right: 3px;
    top: 3px;
}

.a-crossbar {
    position: absolute;
    width: 10px;
    height: 3px;
    background: white;
    border-radius: 1.5px;
    top: 23px;
    left: 50%;
    transform: translateX(-50%);
}



@keyframes logo-pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    }
    50% { 
        transform: scale(1.02);
        box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    }
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    transition: width 0.3s ease;
}

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

/* Theme Toggle Button */
.theme-toggle {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    outline: none;
}

.theme-toggle-track {
    width: 60px;
    height: 30px;
    background: var(--surface-primary);
    border: 2px solid var(--border-color);
    border-radius: 30px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.theme-toggle:hover .theme-toggle-track {
    background: var(--surface-tertiary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.theme-toggle-thumb {
    width: 24px;
    height: 24px;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 50%;
    position: absolute;
    top: 1px;
    left: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .theme-toggle-thumb {
    transform: translateX(30px);
}

.theme-toggle-thumb i {
    font-size: 10px;
    color: white;
    position: absolute;
    transition: all 0.3s ease;
}

.moon-icon {
    opacity: 1;
    transform: scale(1);
}

.sun-icon {
    opacity: 0;
    transform: scale(0.5);
}

[data-theme="light"] .moon-icon {
    opacity: 0;
    transform: scale(0.5);
}

[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: scale(1);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Tech Stack Chips */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-chip {
    background: var(--surface-primary);
    color: var(--accent-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 0.3rem; /* Buffer for hover movement */
}

.tech-chip:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-1px) scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.1) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
    grid-template-areas: "text image";
}

.hero-text {
    grid-area: text;
}

.hero-image {
    grid-area: image;
}

.hero-greeting {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    animation: slideInLeft 1s ease-out;
}

.hero-title-container {
    margin-bottom: 1.5rem;
}

.hero-title-main {
    font-family: 'Fira Code', monospace;
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, #ff6b6b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideInLeft 1s ease-out 0.001s both, title-glow 0.8s ease-in-out infinite alternate;
    letter-spacing: -0.02em;
    text-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
    position: relative;
    line-height: 1.1;
}

.hero-title-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 50%, #ff6b6b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(20px);
    opacity: 0.3;
    z-index: -1;
}

.hero-title-sub {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    animation: slideInLeft 1s ease-out 0.4s both;
    letter-spacing: -0.01em;
    opacity: 0.9;
    position: relative;
}

@keyframes title-glow {
    0% {
        filter: brightness(1) drop-shadow(0 0 5px rgba(102, 126, 234, 0.5));
        transform: translateY(0px);
    }
    100% {
        filter: brightness(1.1) drop-shadow(0 0 20px rgba(102, 126, 234, 0.8));
        transform: translateY(-2px);
    }
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    animation: slideInLeft 1s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: slideInLeft 1s ease-out 0.6s both;
    padding: 1.5rem; /* Extra space all around */
    margin-bottom: 1rem; /* Buffer zone */
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease-out;
    display: inline-block;
    position: relative;
    overflow: hidden;
    margin: 0.75rem 0.5rem; /* All-around buffer zone */
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    color: white;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.4);
}

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

.btn-secondary:hover {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.05);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.3);
}

.btn-download {
    background: linear-gradient(45deg, #10b981, #059669);
    color: white;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-download:hover {
    background: linear-gradient(45deg, #059669, #047857);
    transform: scale(1.05);
    box-shadow: 0 12px 30px rgba(16, 185, 129, 0.4);
}

.btn-download i {
    margin-right: 0.5rem;
    transition: transform 0.3s ease;
}

.btn-download:hover i {
    transform: scale(1.1);
}

.hero-image {
    animation: slideInRight 1s ease-out 0.8s both;
}

.hero-avatar {
    position: relative;
}

.avatar-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    position: relative;
    overflow: hidden;
    padding: 4px; /* Creates border effect */
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    filter: contrast(1.1) brightness(1.05);
    transition: all 0.3s ease;
}

.avatar-circle:hover .avatar-img {
    transform: scale(1.05);
    filter: contrast(1.2) brightness(1.1);
}

.avatar-circle:hover {
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

/* Section Styles */
section {
    padding: 5rem 0;
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* About Section */
.about {
    background: var(--surface-secondary);
    position: relative;
    z-index: 2;
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
}

.about-main {
    background: var(--surface-primary);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-intro {
    text-align: left;
}

.intro-header h3 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 2rem;
}

.intro-text {
    margin-bottom: 3rem;
}

.intro-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: left;
}

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

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-highlights {
    text-align: left;
}

.about-highlights h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    position: relative;
    padding-left: 1.5rem;
}

.about-highlights h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
}

.highlights-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-card {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    margin-bottom: 0.5rem; /* Buffer for hover movement */
}

.highlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.highlight-card:hover {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
    border-color: var(--accent-primary);
}

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

.highlight-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.highlight-icon i {
    font-size: 1.8rem;
    color: white;
}

.highlight-content h5 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.highlight-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Experience Section */
.experience-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #667eea, #764ba2);
    transform: translateX(-50%);
}

.experience-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 2rem;
    width: 15px;
    height: 15px;
    background: #667eea;
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.experience-date {
    text-align: right;
    padding-right: 2rem;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.experience-content {
    padding-left: 2rem;
}

.experience-content h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.experience-content h4 {
    color: var(--accent-primary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.experience-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.experience-content ul {
    list-style: none;
    padding-left: 0;
}

.experience-content li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.experience-content li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

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

.project-card {
    background: var(--surface-primary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    margin-bottom: 1rem; /* Buffer for hover movement */
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #667eea, transparent);
    transition: left 0.5s ease;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    transform: translateY(-3px) scale(1.02);
    background: var(--surface-tertiary);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.project-image {
    text-align: center;
    margin-bottom: 1.5rem;
}

.project-image i {
    font-size: 3rem;
    color: var(--accent-primary);
}

.project-content h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.tech-tag {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(102, 126, 234, 0.3);
}

/* Skills Section - Row-based Layout */
.skills {
    background: var(--surface-secondary);
}

.skill-row {
    margin-bottom: 3rem;
    position: relative;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding-top: 0.5rem;
}

.row-title {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: left;
    padding-left: 1rem;
    border-left: 4px solid var(--accent-primary);
    position: relative;
}

.row-title::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
}

.skills-row-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    padding: 0.5rem 1rem;
    width: 100%;
    box-sizing: border-box;
    max-width: 100%;
}

.skill-card {
    background: var(--surface-primary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.2rem 0.8rem;
    margin-bottom: 0.5rem;
    text-align: center;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    transition: left 0.5s ease;
}

.skill-card:hover::before {
    left: 100%;
}

.skill-card:hover {
    transform: translateY(-3px) scale(1.05);
    background: var(--surface-tertiary);
    border-color: var(--accent-primary);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.25);
}

.skill-card:active {
    transform: translateY(-1px) scale(1.03);
}

.skill-card i {
    font-size: 1.8rem;
    color: var(--accent-primary);
    margin-bottom: 0.8rem;
    display: block;
    transition: all 0.3s ease;
}

.skill-card:hover i {
    transform: scale(1.1);
    filter: drop-shadow(0 0 8px rgba(102, 126, 234, 0.6));
}

.skill-card span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.85rem;
    display: block;
    line-height: 1.2;
}



/* Contact Section */
.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 1.5rem; /* Extra space all around */
    margin-bottom: 1rem; /* Buffer zone */
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: var(--surface-primary);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease-out;
    margin: 0.75rem 0.5rem; /* All-around buffer zone */
    cursor: pointer;
}

.contact-item:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--accent-primary);
    transform: scale(1.03);
    color: var(--text-primary);
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--accent-primary);
}

/* Resume Modal */
.resume-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.resume-modal.active {
    display: flex;
    opacity: 1;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    margin: auto;
    background: var(--surface-primary);
    border-radius: 20px;
    width: 90%;
    max-width: 1000px;
    height: 85vh;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalSlideIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 10001;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: var(--surface-secondary);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    color: var(--text-primary);
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-header h3 i {
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.modal-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-download-modal {
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease-out;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(45deg, #10b981, #059669);
    color: white;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
}

.btn-download-modal:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.modal-close:hover {
    background: var(--surface-tertiary);
    color: var(--text-primary);
    transform: scale(1.1);
}

.modal-body {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.modal-body iframe {
    border: none;
    width: 100%;
    height: 100%;
}

.iframe-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    z-index: 10;
    background: var(--surface-primary);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.iframe-loading i {
    color: var(--accent-primary);
    font-size: 1.5rem;
}

/* Footer */
.footer {
    background: var(--surface-secondary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer p {
    color: var(--text-muted);
}

/* Enhanced Animations */
.reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.stagger-animation > * {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.stagger-animation.active > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-animation.active > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-animation.active > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-animation.active > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-animation.active > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-animation.active > *:nth-child(6) { transition-delay: 0.6s; }

.stagger-animation.active > * {
    opacity: 1;
    transform: translateY(0);
}

/* Mouse follow effect */
.mouse-follow {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(102, 126, 234, 0.5);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transition: all 0.1s ease;
    transform: translate(-50%, -50%);
}

/* Enhanced hover effects */
.enhanced-hover {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.enhanced-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.enhanced-hover:hover::before {
    left: 100%;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Section transition effects */
.section-transition {
    position: relative;
    overflow: hidden;
}

.section-transition::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #667eea, transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
        position: relative;
        overflow: visible;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        /* background: rgba(26, 26, 46, 0.95); */
        background: var(--surface-primary);
        backdrop-filter: blur(20px);
        width: 100%;
        height: calc(100vh - 70px);
        text-align: center;
        transition: left 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        padding: 3rem 0;
        border-top: 1px solid var(--border-color);
        z-index: 10001;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 0 0;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
        list-style: none;
    }
    
    .nav-menu.active li {
        opacity: 1;
        transform: translateY(0);
    }
    
    .nav-menu.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav-menu.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav-menu.active li:nth-child(4) { transition-delay: 0.4s; }
    .nav-menu.active li:nth-child(5) { transition-delay: 0.5s; }

    .nav-menu a {
        display: block;
        color: var(--text-primary);
        text-decoration: none;
        padding: 1rem 2rem;
        font-size: 1.1rem;
        font-weight: 500;
        border-radius: 8px;
        margin: 0 1rem;
        transition: all 0.3s ease;
    }

    .nav-menu a:hover {
        background: var(--accent-primary);
        color: white;
        transform: translateY(-1px) scale(1.01);
    }

    .nav-actions {
        gap: 0.8rem;
        display: flex;
        align-items: center;
        flex-shrink: 0;
    }
    
    .theme-toggle {
        order: 1;
    }
    
    .theme-toggle-track {
        width: 45px;
        height: 22px;
    }
    
    .theme-toggle-thumb {
        width: 18px;
        height: 18px;
    }
    
    [data-theme="light"] .theme-toggle-thumb {
        transform: translateX(23px);
    }

    .logo-container {
        flex-shrink: 0;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
        padding: 6px;
    }
    
    .logo-a {
        width: 20px;
        height: 20px;
    }
    
    .a-left, .a-right {
        width: 2.5px;
        height: 15px;
    }
    
    .a-left {
        left: 2.5px;
        top: 2.5px;
    }
    
    .a-right {
        right: 2.5px;
        top: 2.5px;
    }
    
    .a-crossbar {
        width: 8px;
        height: 2.5px;
        top: 17px;
    }

    .hamburger {
        display: flex;
        order: 2;
        flex-direction: column;
        width: 30px;
        height: 22px;
        justify-content: space-between;
        cursor: pointer;
        z-index: 10002;
        position: relative;
    }
    
    .hamburger .bar {
        width: 100%;
        height: 3px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        margin: 0;
        transform-origin: center;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

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

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        grid-template-areas: 
            "image"
            "text";
    }
    
    .hero-text {
        grid-area: text;
    }
    
    .hero-image {
        grid-area: image;
    }

    .hero-title-main {
        font-size: 2.8rem;
        text-shadow: 0 0 20px rgba(102, 126, 234, 0.2);
    }
    
    .hero-title-sub {
        font-size: 1.4rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
        padding-bottom: 1.5rem; /* Extra space for mobile hover */
        gap: 0.8rem; /* Slightly reduced gap for mobile */
    }

    .avatar-circle {
        width: 150px;
        height: 150px;
        font-size: 3rem;
        margin: 0 auto 2rem auto;
    }

    .about-main {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2rem;
    }
    
    .about-stats {
        justify-content: space-around;
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .intro-header h3 {
        font-size: 1.8rem;
    }
    
    .intro-subtitle {
        font-size: 1.1rem;
    }

    .experience-timeline::before {
        left: 20px;
    }

    .experience-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding-left: 3rem;
    }

    .experience-item::before {
        left: 20px;
    }

    .experience-date {
        text-align: left;
        padding-right: 0;
        padding-bottom: 0.5rem;
    }

    .experience-content {
        padding-left: 0;
    }

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

    .skills-row-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 0.8rem;
        padding: 0.5rem 0.5rem;
        width: 100%;
        box-sizing: border-box;
        max-width: 100%;
    }
    
    .skill-card {
        padding: 1rem 0.6rem;
        margin-bottom: 0.4rem;
        width: 100%;
        height: 110px;
        min-height: 110px;
    }
    
    .skill-card i {
        font-size: 1.5rem;
    }
    
    .skill-card span {
        font-size: 0.8rem;
    }
    
    .row-title {
        font-size: 1.2rem;
        padding-left: 0.5rem;
    }
    


    .contact-methods {
        flex-direction: column;
        align-items: center;
        padding-bottom: 1.5rem; /* Extra space for mobile hover */
        gap: 1rem; /* Reduced gap for mobile */
    }
    
    /* Resume Modal Mobile */
    .modal-content {
        width: 95%;
        height: 90vh;
        margin: 2.5vh auto;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .modal-controls {
        justify-content: space-between;
    }
    
    .modal-header h3 {
        font-size: 1.1rem;
        justify-content: center;
    }
    
    .btn-download-modal {
        padding: 0.5rem 1.2rem;
        font-size: 0.85rem;
    }

    .container {
        padding: 0 1rem;
    }

    .section-title {
        font-size: 2rem;
    }
}


@media (max-width: 768px) {
    [data-theme="dark"] .nav-menu {
        background: rgba(26, 26, 46, 0.97); /* Solid dark for dropdown */
        color: var(--text-primary);
    }
}

@media (max-width: 480px) {
    .hero-title-main {
        font-size: 2.2rem;
        text-shadow: 0 0 15px rgba(102, 126, 234, 0.2);
    }
    
    .hero-title-sub {
        font-size: 1.1rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .project-card,
    .skill-item {
        padding: 1.5rem;
    }

    .avatar-circle {
        width: 120px;
        height: 120px;
        font-size: 2.5rem;
    }
    
    .logo-icon {
        width: 32px;
        height: 32px;
        padding: 6px;
    }
    
    .logo-a {
        width: 20px;
        height: 20px;
    }
    
    .a-left, .a-right {
        width: 2.5px;
        height: 15px;
    }
    
    .a-left {
        left: 2.5px;
        top: 2.5px;
    }
    
    .a-right {
        right: 2.5px;
        top: 2.5px;
    }
    
    .a-crossbar {
        width: 8px;
        height: 2.5px;
        top: 17px;
    }
    
    .skills-row-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 0.6rem;
        padding: 0.5rem 0.25rem;
        width: 100%;
        box-sizing: border-box;
        max-width: 100%;
    }
    
    .skill-card {
        padding: 0.8rem 0.5rem;
        margin-bottom: 0.3rem;
        width: 100%;
        height: 100px;
        min-height: 100px;
    }
    
    .skill-card i {
        font-size: 1.3rem;
        margin-bottom: 0.5rem;
    }
    
    .skill-card span {
        font-size: 0.75rem;
    }
    
    .row-title {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    
    .nav-container {
        padding: 0 0.5rem;
    }
    
    .nav-actions {
        gap: 0.5rem;
    }
    
    .logo-container {
        /* No gap needed for icon-only logo */
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
        padding: 5px;
    }
    
    .logo-a {
        width: 18px;
        height: 18px;
    }
    
    .a-left, .a-right {
        width: 2px;
        height: 13px;
    }
    
    .a-left {
        left: 2px;
        top: 2px;
    }
    
    .a-right {
        right: 2px;
        top: 2px;
    }
    
    .a-crossbar {
        width: 6px;
        height: 2px;
        top: 17px;
    }
    
    .theme-toggle-track {
        width: 40px;
        height: 20px;
    }
    
    .theme-toggle-thumb {
        width: 16px;
        height: 16px;
    }
    
    [data-theme="light"] .theme-toggle-thumb {
        transform: translateX(20px);
    }
    
    .hamburger {
        width: 25px;
        height: 18px;
    }
    
    .about-main {
        padding: 1.5rem;
        gap: 2rem;
    }
    
    .intro-header h3 {
        font-size: 1.6rem;
    }
    
    .intro-subtitle {
        font-size: 1rem;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .highlight-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1.2rem;
    }
    
    .highlight-content h5 {
        font-size: 1.1rem;
    }
    
    .highlight-content p {
        font-size: 0.9rem;
    }
    
    /* Resume Modal Mobile */
    .modal-content {
        width: 98%;
        height: 92vh;
        margin: 4vh auto;
        border-radius: 15px;
    }
    
    .modal-header {
        padding: 0.8rem 1rem;
    }
    
    .modal-header h3 {
        font-size: 1rem;
    }
    
    .btn-download-modal {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }

}

/* Custom Scrollbar Styles */
body::-webkit-scrollbar {
    width: 12px;
    background: var(--bg-secondary);
}

body::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 8px;
    border: 2px solid var(--surface-primary);
}

body::-webkit-scrollbar-track {
    background: var(--surface-secondary);
    border-radius: 8px;
}