/* Base styles */
:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.1);
    --primary-dark: #4338ca;
    --secondary: #f97316;
    --secondary-hover: #ea580c;
    --background: #ffffff;
    --background-alt: #f9fafb;
    --text: #1f2937;
    --text-secondary: #4b5563;
    --text-light: #9ca3af;
    --border: #e5e7eb;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --card-hover-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
    --header-height: 4rem;
    --transition-speed: 0.3s;
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
    --gradient-secondary: linear-gradient(135deg, var(--secondary), #f59e0b);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--background);
    overflow-x: hidden;
    perspective: 1px; /* Enable 3D space for parallax */
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.3;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 2;
}

.relative {
    position: relative;
}

a {
    text-decoration: none;
    color: var(--primary);
    transition: color var(--transition-speed);
}

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

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

/* Dark Mode Theme */
.dark-mode {
    --primary: #818cf8;
    --primary-hover: #6366f1;
    --primary-light: rgba(129, 140, 248, 0.1);
    --primary-dark: #4f46e5;
    --secondary: #fb923c;
    --secondary-hover: #f97316;
    --background: #111827;
    --background-alt: #1f2937;
    --text: #f9fafb;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;
    --border: #374151;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    --card-hover-shadow: 0 10px 15px rgba(0, 0, 0, 0.3);
}

/* Parallax Styles */
.parallax-container {
    position: relative;
    height: 100vh;
    overflow: hidden;
    transform-style: preserve-3d;
}

.parallax-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    transform-style: preserve-3d;
}

.layer-bg {
    background: var(--primary-light);
    transform: translateZ(-0.5px) scale(1.5);
    z-index: -4;
}

.layer-1 {
    background: radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    transform: translateZ(-0.4px) scale(1.4);
    z-index: -3;
}

.layer-2 {
    background: radial-gradient(circle at 70% 60%, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
    transform: translateZ(-0.3px) scale(1.3);
    z-index: -2;
}

.layer-3 {
    background: radial-gradient(circle at 40% 80%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
    transform: translateZ(-0.2px) scale(1.2);
    z-index: -1;
}

.parallax-section {
    position: relative;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-light);
    opacity: 0.5;
    z-index: -1;
    transform: translateZ(-0.3px) scale(1.3);
}

.parallax-item {
    transition: transform 0.2s ease-out;
}

/* Header */
.sticky-header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: background var(--transition-speed), border-color var(--transition-speed);
}

.dark-mode .sticky-header {
    background: rgba(17, 24, 39, 0.95);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text);
    display: flex;
    align-items: center;
    position: relative;
    transition: color var(--transition-speed);
}

.logo-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    margin-left: 2px;
}

.nav-desktop {
    display: none;
}

.nav-link {
    background: none;
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    color: var(--text);
    cursor: pointer;
    transition: color var(--transition-speed);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-speed), left var(--transition-speed);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
    left: 0;
}

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

.nav-button, .mobile-nav-button {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-speed), transform var(--transition-speed);
    text-decoration: none;
    display: inline-block;
}

.nav-button:hover, .mobile-nav-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    color: white;
}

.menu-button {
    display: block;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text);
}

/* Dark Mode Toggle Button */
.dark-mode-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text);
    transition: transform var(--transition-speed);
    margin-left: 0.5rem;
}

.dark-mode-toggle:hover {
    transform: rotate(15deg);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-speed);
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-link {
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.75rem 0;
    text-align: left;
    color: var(--text);
    cursor: pointer;
    transition: color var(--transition-speed);
    border-bottom: 1px solid var(--border);
}

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

.mobile-nav-button {
    margin-top: 0.5rem;
    text-align: center;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: 4rem 0;
    overflow: hidden;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 3rem;
    z-index: 2;
}

.hero-text {
    max-width: 700px;
}

.hero-intro {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
    animation-delay: 0.2s;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
    animation-delay: 0.4s;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
    animation-delay: 0.6s;
}

.typing-text::after {
    content: '|';
    animation: blink 1s infinite;
}

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

.hero p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.125rem;
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
    animation-delay: 0.8s;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
    animation-delay: 1s;
}

.primary-button, .secondary-button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    font-size: 1rem;
    transition: all var(--transition-speed);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.primary-button {
    background: var(--primary);
    color: white;
    border: none;
}

.primary-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    color: white;
}

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

.secondary-button:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.hero-image {
    position: relative;
    opacity: 0;
    animation: fadeIn 1s forwards;
    animation-delay: 1.2s;
}

.profile-image-container {
    position: relative;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.profile-image-container:hover .profile-image {
    transform: scale(1.05);
}

.profile-backdrop {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--gradient-primary);
    z-index: -1;
    filter: blur(20px);
    opacity: 0.3;
    border-radius: 50%;
    animation: pulse 3s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.2; transform: scale(0.95); }
    100% { opacity: 0.4; transform: scale(1.05); }
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
    animation-delay: 1.4s;
    z-index: 2;
}

.social-link {
    color: var(--text-secondary);
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--background-alt);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.social-link:hover {
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Section Styles */
.section-header {
    padding: 2rem 0;
    text-align: center;
    background: var(--background-alt);
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.section-title-container {
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Projects Section */
.projects-section {
    padding-bottom: 5rem;
}

/* Tabs */
.tab-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.tab-button {
    font-size: 0.875rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: 9999px;
    background: var(--background);
    color: var(--text);
    cursor: pointer;
    transition: all var(--transition-speed);
    font-weight: 500;
}

.tab-button:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
    color: var(--primary);
}

.tab-button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.3);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

/* Project Card */
.project-card {
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all var(--transition-speed);
    background: var(--background);
    box-shadow: var(--card-shadow);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
    border-color: var(--primary-light);
}

.project-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-speed);
}

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

.view-project {
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all var(--transition-speed);
}

.view-project:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
    color: white;
}

.project-details {
    padding: 1.5rem;
}

.project-details h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.project-details p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    border-radius: 9999px;
    color: var(--primary);
    font-weight: 500;
}

.project-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    transition: all var(--transition-speed);
}

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

.arrow {
    transition: transform var(--transition-speed);
    display: inline-block;
    margin-left: 0.25rem;
}

.project-link:hover .arrow {
    transform: translateX(3px);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s;
}

/* Skills Section */
.skills-section {
    padding-bottom: 5rem;
    background: var(--background-alt);
}

.skills-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

.skill-card {
    padding: 2rem;
    border-radius: 0.75rem;
    background: var(--background);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    transition: width var(--transition-speed);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}

.skill-card:hover::before {
    width: 100%;
    opacity: 0.05;
}

.skill-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.skill-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.skill-card ul {
    list-style-type: none;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.skill-card li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.skill-card li::before {
    content: '•';
    color: var(--primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.skill-progress {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 1s ease-in-out;
}

/* About Section */
.about-section {
    padding-bottom: 5rem;
}

.about-content {
    display: grid;
    gap: 3rem;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-speed);
}

.about-image:hover img {
    transform: scale(1.03);
}

.about-image-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    z-index: -1;
}

.about-text h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--background-alt);
    border-radius: 0.75rem;
    transition: all var(--transition-speed);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Contact Section */
.contact-section {
    padding-bottom: 5rem;
    background: var(--background-alt);
}

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

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--background);
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-hover-shadow);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    flex-shrink: 0;
}

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

.contact-text p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.contact-form {
    background: var(--background);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--card-shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    background: var(--background);
    color: var(--text);
    font-family: inherit;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

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

/* Footer */
footer {
    background: var(--background-alt);
    color: var(--text);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    gap: 3rem;
    grid-template-columns: 1fr;
    margin-bottom: 3rem;
}

.footer-logo {
    max-width: 300px;
}

.footer-logo p {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.footer-links {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(2, 1fr);
}

.footer-column h3 {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    color: var(--text);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-secondary);
    transition: color var(--transition-speed);
    font-size: 0.9375rem;
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

.footer-social a {
    color: var(--text-secondary);
    transition: color var(--transition-speed), transform var(--transition-speed);
}

.footer-social a:hover {
    color: var(--primary);
    transform: translateY(-3px);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (min-width: 640px) {
    .tab-button {
        font-size: 0.9375rem;
        padding: 0.625rem 1.5rem;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.75rem;
    }
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
        gap: 1.5rem;
        align-items: center;
    }

    .menu-button {
        display: none;
    }

    .hero-content {
        flex-direction: row;
        text-align: left;
        justify-content: space-between;
    }
    
    .hero-buttons, .social-links {
        justify-content: flex-start;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 2fr;
    }
}

/* Utility Classes */
.min-h-screen {
    min-height: 100vh;
}