/* Custom Properties for easy theme changes */
 :root {
    --primary-color: #3f51b5; /* Deep Indigo - Professional feel */
    --secondary-color: white; /* Accent Pink - For highlights */
    --dark-bg: #212121; /* Dark Charcoal - For sections & header */
    --light-bg: #f5f5f5; /* Light Gray - For alternating sections */
    --text-color: #333333;
    --light-text-color: #ffffff;
    --card-bg: #ffffff;
    --border-radius-lg: 12px;
    --border-radius-md: 8px;
    --box-shadow-light: 0 4px 15px rgba(0, 0, 0, 0.08);
    --box-shadow-dark: 0 6px 20px rgba(0, 0, 0, 0.2);
    --transition-speed: 0.3s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Lato', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    overflow-x: hidden; /* Prevent horizontal scroll */
}

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

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

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 20px;
    color: inherit; /* Inherit color from parent section */
}

h1 {
    font-size: 3.5em;
    font-weight: 700;
}

h2 {
    font-size: 2.8em;
    font-weight: 700;
    margin-bottom: 60px;
    position: relative;
    display: inline-block; /* For the underline effect */
}

h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

section {
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden; /* For background effects */
}

.section-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

/* Alternating Section Backgrounds */
section:nth-of-type(even) { /* About, Skills, Contact */
    background-color: var(--dark-bg);
    color: var(--light-text-color);
}

section:nth-of-type(even) h2::after {
    background-color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--light-text-color);
    padding: 14px 30px;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-speed);
    margin: 10px;
    border: none;
    cursor: pointer;
    font-size: 1.05em;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    color: black;
    border: 1px solid black;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.btn i {
    margin-left: 8px;
    font-size: 1.1em;
}

.large-btn {
    padding: 18px 40px;
    font-size: 1.2em;
}

/* Header & Navigation */
.main-header {
    background-color: var(--dark-bg);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.2);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

.logo a {
    color: var(--light-text-color);
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8em;
    font-weight: 700;
    transition: color var(--transition-speed);
}

.logo a:hover {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 40px;
}

.nav-links a {
    color: var(--light-text-color);
    font-size: 1.1em;
    padding: 5px 0;
    position: relative;
    transition: all var(--transition-speed);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 3px;
    background-color: var(--primary-color);
    left: 0;
    bottom: -5px;
    transition: width var(--transition-speed);
}

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

/* Burger menu for mobile */
.burger {
    display: none;
    cursor: pointer;
    z-index: 1200; /* Ensure it's above the nav-links when open */
}

.burger div {
    width: 28px;
    height: 3px;
    background-color: var(--light-text-color);
    margin: 6px;
    transition: all var(--transition-speed);
    border-radius: 2px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(33, 33, 33, 0.85), rgba(33, 33, 33, 0.85)), url('images/hero-bg.jpg') no-repeat center center/cover; /* Add a striking background image */
    color: var(--light-text-color);
    min-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeIn 1.5s ease-out;
}

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

.profile-pic {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid var(--secondary-color);
    margin-bottom: 30px;
    box-shadow: 0 0 25px #987ef3;/* Glowing effect */
    transition: transform var(--transition-speed);
}

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

.hero-content h1 {
    font-size: 3.6em;
    margin-bottom: 10px;
    margin: 30px;
    line-height: 1.2;
    background: linear-gradient(90deg, var(--primary-color), rgb(90, 69, 72));
    
}

.tagline {
    font-size: 1.6em;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}


/* About Section */
.about-section {
    background-color: var(--light-bg);
    color: var(--text-color);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    text-align: left;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.15em;
    line-height: 1.8;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-dark);
    transition: transform var(--transition-speed);
}

.about-image img:hover {
    transform: scale(1.02);
}

/* Projects Section */
.projects-section {
    background-color: var(--dark-bg);
    color: var(--light-text-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    text-align: left;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.project-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-bottom: 1px solid #eee;
}

.project-card .card-content {
    padding: 25px;
    flex-grow: 1; /* Allows content to expand */
    display: flex;
    flex-direction: column;
}

.project-card h3 {
    font-size: 1.8em;
    margin-top: 0;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.project-card p {
    font-size: 1em;
    margin-bottom: 15px;
    flex-grow: 1;
    color: #555;
}

.project-tech-stack {
    margin-bottom: 20px;
}

.project-tech-stack span {
    display: inline-block;
    background-color: #e0e0e0;
    color: #555;
    font-size: 0.85em;
    padding: 6px 12px;
    border-radius: 5px;
    margin-right: 8px;
    margin-bottom: 8px;
    font-weight: 500;
}

.project-links {
    margin-top: auto; /* Push buttons to the bottom */
    display: flex;
    justify-content: space-between;
    gap: 15px;
}

.project-btn {
    flex: 1;
    padding: 10px 15px;
    font-size: 0.9em;
    box-shadow: none; /* Remove shadow for project buttons */
}

.project-btn:hover {
    transform: translateY(-2px);
    box-shadow: none;
}

/* Certifications Section */
.certifications-section {
    background-color: var(--light-bg);
    color: var(--text-color);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.cert-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-light);
    padding: 30px;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.cert-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.cert-card img {
    max-width: 120px;
    height: auto;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 5px rgba(0,0,0,0.1));
    color: black;
}

.cert-card h3 {
    font-size: 1.6em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.cert-card p {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 8px;
}

.cert-btn {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 0.9em;
    box-shadow: none;
}

/* Skills Section */
.skills-section {
    background-color: var(--dark-bg);
    color: var(--light-text-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.skill-category {
    background-color: rgba(255, 255, 255, 0.08); /* Slightly transparent white on dark background */
    border-radius: var(--border-radius-lg);
    padding: 35px;
    box-shadow: var(--box-shadow-dark);
    text-align: left;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.skill-category:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.skill-category h3 {
    color: var(--secondary-color);
    margin-bottom: 25px;
    font-size: 1.5em;
    display: flex;
    align-items: center;
}

.skill-category h3 i {
    margin-right: 15px;
    font-size: 1.3em;
    color: var(--primary-color);
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    font-size: 1.1em;
    margin-bottom: 12px;
    padding-left: 15px;
    position: relative;
    color: rgba(255, 255, 255, 0.85);
}

.skill-category li::before {
    content: "\f00c"; /* Font Awesome check-mark icon */
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    color: var(--primary-color);
    position: absolute;
    left: 0;
    top: 2px;
    font-size: 0.9em;
}

/* Resume Section */
.resume-section {
    background-color: var(--light-bg);
    color: var(--text-color);
}

.resume-text {
    font-size: 1.2em;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.resume-section .btn i {
    margin-right: 10px; /* Adjust margin for icon */
    margin-left: 0;
}

.resume-section .note {
    font-size: 0.9em;
    color: #777;
    margin-top: 20px;
}

/* Contact Section */
.contact-section {
    background-color: var(--dark-bg);
    color: var(--light-text-color);
}

.contact-section p {
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto 50px;
    line-height: 1.8;
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--box-shadow-dark);
    transition: transform var(--transition-speed), background-color var(--transition-speed);
}

.contact-card:hover {
    transform: translateY(-8px);
    background-color: rgba(255, 255, 255, 0.15);
    color: #030303;
}

.contact-icon {
    font-size: 3.5em;
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 1.6em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.contact-card p {
    font-size: 0.95em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.contact-btn {
    padding: 10px 25px;
    font-size: 0.95em;
}

/* Footer */
.main-footer {
    background-color: f7f3e3;
    color: rgba(255, 255, 255, 0.7);
    padding: 40px 0;
    font-size: 0.9em;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    
}



.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    color: #a8763e;
    justify-content: space-between;
    align-items: center;
    text-align: center;
    flex-wrap: wrap; /* Allow wrapping on small screens */
}

.footer-social-links a {
    color: black;
    transition: color var(--transition-speed);
    margin: 0 10px;
    text-decoration: none;
}

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

/* Responsive Design */
@media (max-width: 992px) {
    .nav-links {
        margin-left: 10px; /* Adjust nav spacing */
    }
    .nav-links li {
        margin-left: 25px;
    }

    .hero-content h1 {
        font-size: 3.5em;
    }
    .tagline {
        font-size: 1.4em;
    }
    h2 {
        font-size: 2.3em;
    }
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .about-image {
        order: -1; /* Move image above text on mobile */
        margin-bottom: 30px;
    }
    .projects-grid, .certifications-grid, .skills-grid, .contact-options {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0 20px;
    }
    .nav-links {
        position: fixed;
        right: 0;
        top: 0;
        height: 100vh;
        background-color: var(--dark-bg);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 70%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        padding-top: 100px;
        z-index: 1100; /* Below burger, above content */
    }

    .nav-links li {
        opacity: 0;
        margin: 25px 0;
    }

    .burger {
        display: block;
    }

    .nav-active {
        transform: translateX(0%);
    }

    .hero-content h1 {
        font-size: 2.8em;
    }
    .tagline {
        font-size: 1.2em;
    }
    .profile-pic {
        width: 160px;
        height: 160px;
    }

    h2 {
        font-size: 2em;
        margin-bottom: 40px;
    }
    section {
        padding: 80px 0;
    }
    .section-content {
        padding: 0 20px;
    }
    .project-card, .cert-card, .skill-category, .contact-card, .contact-form {
        margin: 0 10px; /* Add slight side margin */
    }
    .footer-content {
        flex-direction: column;
    }
    .footer-content p {
        margin-bottom: 15px;
    }
    .footer-social-links {
        margin-top: 15px;
    }
    .footer-social-links a {
        margin: 0 10px;
    } 
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.2em;
    }
    .tagline {
        font-size: 1em;
    }
    .social-links a {
        font-size: 2em;
        margin: 0 10px;
    }
    .btn {
        padding: 12px 25px;
        font-size: 0.95em;
    }
    .large-btn {
        padding: 15px 30px;
        font-size: 1em;
    }
    h2 {
        font-size: 1.8em;
    }
    .project-links {
        flex-direction: column;
        gap: 10px;
    }
    .project-btn {
        width: 100%;
    }
    .skill-category h3 {
        font-size: 1.5em;
    }
    .skill-category li {
        font-size: 1em;
    }
}

/* Keyframes for nav links animation (from script.js) */
@keyframes navLinkFade {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0px);
    }
}

/* Burger Animation for X */
.toggle .line1 {
    transform: rotate(-45deg) translate(-5px, 6px);
}
.toggle .line2 {
    opacity: 0;
}
.toggle .line3 {
    transform: rotate(45deg) translate(-5px, -6px);
}

.home{
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #ECD444;
    color: #030303;
    padding: 30px 20px;
    border-radius: 50%;
    border: 1px solid black;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}