/* CSS Variables for Theme Colors */
:root {
    /* Light Theme (Default) */
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --background-color: #ffffff;
    --text-color: #1f2937;
    --card-bg: #f3f4f6;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --gradient-start: #f5f7fa;
    --gradient-end: #c3cfe2;
    --border-color: #e5e7eb;
    --input-bg: #ffffff;
    --input-text: #1f2937;
    --footer-bg: #2c3e50;
    --footer-text: #ffffff;
}

[data-theme="dark"] {
    --primary-color: #818cf8;
    --secondary-color: #6366f1;
    --background-color: #0f172a;
    --text-color: #f1f5f9;
    --card-bg: #1e293b;
    --nav-bg: rgba(15, 23, 42, 0.95);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --gradient-start: #1e293b;
    --gradient-end: #0f172a;
    --border-color: #334155;
    --input-bg: #1e293b;
    --input-text: #f1f5f9;
    --footer-bg: #0f172a;
    --footer-text: #f1f5f9;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px var(--shadow-color);
    z-index: 1000;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

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

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: rotate(30deg);
}

.theme-toggle .fa-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .fa-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .fa-sun {
    display: inline;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

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

/* Mobile Navigation Styles */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--nav-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transition: 0.3s ease-in-out;
        box-shadow: -2px 0 5px var(--shadow-color);
    }

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

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

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

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

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

/* Add overlay when mobile menu is active */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.menu-overlay.active {
    display: block;
    opacity: 1;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    text-align: center;
    padding: 0 1rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.hero-content h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #666;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    background: var(--secondary-color);
}

/* Add these styles after the hero section styles */

.profile-image {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #3498db;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Section Styles */
section {
    padding: 5rem 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* About Section */
.about {
    background: var(--background-color);
    padding: 5rem 2rem;
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    text-align: left;
    color: var(--text-color);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    opacity: 0.9;
}

.education {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 4px 6px var(--shadow-color);
}

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

.education p {
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.about-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 20px var(--shadow-color);
    border: 3px solid var(--primary-color);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

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

/* Projects Section */
.projects {
    background: var(--background-color);
    padding: 5rem 2rem;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, var(--card-bg) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover::after {
    opacity: 0.1;
}

.project-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 20px var(--shadow-color);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

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

.project-card h3 {
    padding: 1.5rem 1.5rem 0.5rem;
    color: var(--text-color);
    font-size: 1.3rem;
}

.project-card p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
}

.project-links {
    padding: 1rem 1.5rem;
    display: flex;
    gap: 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
}

.project-links a {
    color: var(--text-color);
    font-size: 1.2rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

.project-links a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Skills Section */
.skills {
    background: var(--background-color);
    padding: 5rem 2rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.skill-card {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--shadow-color);
}

.skill-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skill-card h3 {
    color: var(--text-color);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

/* Contact Section */
.contact {
    background: var(--background-color);
    padding: 5rem 2rem;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

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

input, textarea {
    width: 100%;
    padding: 1rem;
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input::placeholder, textarea::placeholder {
    color: var(--text-color);
    opacity: 0.7;
}

textarea {
    height: 150px;
    resize: vertical;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-color);
    opacity: 0.8;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.3s ease;
}

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

/* .submit-btn.submitting {
    opacity: 0.8;
    cursor: not-allowed;
} */

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.social-links a {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

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

/* Footer */
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 2rem;
}

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

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.about-content {
    animation: scaleIn 1s ease-out;
}

.project-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.project-card:nth-child(2) {
    animation-delay: 0.2s;
}

.project-card:nth-child(3) {
    animation-delay: 0.4s;
}

.skill-card {
    animation: scaleIn 0.5s ease-out;
    animation-fill-mode: both;
}

.skill-card:nth-child(2) {
    animation-delay: 0.1s;
}

.skill-card:nth-child(3) {
    animation-delay: 0.2s;
}

.skill-card:nth-child(4) {
    animation-delay: 0.3s;
}

.skill-card:nth-child(5) {
    animation-delay: 0.4s;
}

.skill-card:nth-child(6) {
    animation-delay: 0.5s;
}

/* Responsive styles for about section */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .about-text {
        text-align: center;
    }

    .about-image {
        max-width: 250px;
    }

    .education {
        text-align: left;
    }

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

    .project-card h3 {
        font-size: 1.2rem;
    }

    .skill-card {
        padding: 1.5rem;
    }

    .skill-card i {
        font-size: 2.5rem;
    }

    .contact-content {
        padding: 0 1rem;
    }
}