/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    height: 100%;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #222222;
    background-color: #f5f5f5;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Dark Theme Colors */
body.dark-theme {
    color: #f0f0f0;
    background-color: #121212;
}

/* ===== BACKGROUND IMAGE FIX ===== */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    background-image: url('images/background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4); /* 40% black overlay */
    z-index: -1;
}
/* ===== THEME TOGGLE BUTTON ===== */
.theme-toggle {
    position: fixed;
    top: 25px;
    right: 25px;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background-color: #4a6fa5;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: #3a5a8a;
    transform: scale(1.1) rotate(15deg);
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Dark theme button styling */
.dark-theme .theme-toggle {
    background-color: #f1c40f;
    color: #333;
}

.dark-theme .theme-toggle:hover {
    background-color: #d4ac0d;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1.2rem 0;
    z-index: 999;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

body.dark-theme .navbar {
    background-color: rgba(30, 30, 30, 0.95);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
}

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

.logo {
    font-family: 'Raleway', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: #4a6fa5;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #3a5a8a;
}

body.dark-theme .logo {
    color: #f1c40f;
}

body.dark-theme .logo:hover {
    color: #d4ac0d;
}

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

.nav-menu li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
    position: relative;
}

body.dark-theme .nav-menu a {
    color: #f0f0f0;
}

.nav-menu a:hover {
    color: #4a6fa5;
}

body.dark-theme .nav-menu a:hover {
    color: #f1c40f;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #4a6fa5;
    transition: width 0.3s ease;
}

body.dark-theme .nav-menu a::after {
    background-color: #f1c40f;
}

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

/* ===== HAMBURGER MENU ===== */
.hamburger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease;
    background-color: #333;
    border-radius: 2px;
}

body.dark-theme .bar {
    background-color: #f0f0f0;
}

/* Mobile menu styles */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 0;
    }
    
    body.dark-theme .nav-menu {
        background-color: rgba(30, 30, 30, 0.95);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1.5rem 0;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 0;
    position: relative;
    background-color: rgba(255, 255, 255, 0.92);
    margin: 30px 20px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease-out;
}

body.dark-theme .section {
    background-color: rgba(30, 30, 30, 0.92);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.section-title {
    font-family: 'Raleway', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    color: #2c3e50;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: #4a6fa5;
    border-radius: 2px;
}

body.dark-theme .section-title {
    color: #f0f0f0;
}

body.dark-theme .section-title::after {
    background-color: #f1c40f;
}

.section-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 4rem;
    font-size: 1.2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

body.dark-theme .section-subtitle {
    color: #bdc3c7;
}

/* ===== HOME SECTION ===== */
.home-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background-color: transparent !important;
    box-shadow: none !important;
    margin: 0 !important;
    border-radius: 0 !important;
}

.home-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    flex-wrap: wrap;
}

.text-content {
    flex: 1;
    min-width: 300px;
    padding: 3rem;
    background-color: rgba(255, 255, 255, 0.92);
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    animation: slideInLeft 1s ease-out;
}

body.dark-theme .text-content {
    background-color: rgba(30, 30, 30, 0.92);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.image-container {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 1s ease-out;
}

.profile-img {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    border: 8px solid #4a6fa5;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}

.profile-img:hover {
    transform: scale(1.05);
    border-color: #3a5a8a;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

body.dark-theme .profile-img {
    border-color: #f1c40f;
}

body.dark-theme .profile-img:hover {
    border-color: #d4ac0d;
}

.animated-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.2s forwards;
    line-height: 1.2;
}

.animated-subtitle {
    font-size: 1.8rem;
    font-weight: 500;
    color: #4a6fa5;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.4s forwards;
}

body.dark-theme .animated-subtitle {
    color: #f1c40f;
}

.animated-text {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
    line-height: 1.8;
}

.highlight {
    color: #4a6fa5;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: rgba(74, 111, 165, 0.2);
    z-index: -1;
}

body.dark-theme .highlight {
    color: #f1c40f;
}

body.dark-theme .highlight::after {
    background-color: rgba(241, 196, 15, 0.2);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 1rem 2.2rem;
    background-color: #4a6fa5;
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    box-shadow: 0 5px 15px rgba(74, 111, 165, 0.3);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background-color: #3a5a8a;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(74, 111, 165, 0.4);
}

.btn:active {
    transform: translateY(-1px);
}

body.dark-theme .btn {
    background-color: #f1c40f;
    color: #333;
    box-shadow: 0 5px 15px rgba(241, 196, 15, 0.3);
}

body.dark-theme .btn:hover {
    background-color: #d4ac0d;
    box-shadow: 0 8px 20px rgba(241, 196, 15, 0.4);
}

.secondary-btn {
    background-color: transparent;
    border: 2px solid #4a6fa5;
    color: #4a6fa5;
    box-shadow: none;
}

.secondary-btn:hover {
    background-color: #4a6fa5;
    color: white;
    box-shadow: 0 5px 15px rgba(74, 111, 165, 0.3);
}

body.dark-theme .secondary-btn {
    border-color: #f1c40f;
    color: #f1c40f;
}

body.dark-theme .secondary-btn:hover {
    background-color: #f1c40f;
    color: #333;
    box-shadow: 0 5px 15px rgba(241, 196, 15, 0.3);
}

.animated-btn {
    opacity: 0;
    animation: fadeInUp 1s ease 0.8s forwards;
}

/* ===== ABOUT SECTION ===== */
.about-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.about-text p {
    margin-bottom: 1.8rem;
    font-size: 1.15rem;
    line-height: 1.9;
    color: #333;
}

body.dark-theme .about-text p {
    color: #f0f0f0;
}

.skills {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #eee;
}

body.dark-theme .skills {
    border-top-color: #444;
}

.skills h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #4a6fa5;
    font-family: 'Raleway', sans-serif;
}

body.dark-theme .skills h3 {
    color: #f1c40f;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-tag {
    background-color: #e8f4fc;
    color: #4a6fa5;
    padding: 0.7rem 1.2rem;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.skill-tag:hover {
    background-color: #4a6fa5;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(74, 111, 165, 0.3);
}

body.dark-theme .skill-tag {
    background-color: #2c3e50;
    color: #f1c40f;
    border-color: #34495e;
}

body.dark-theme .skill-tag:hover {
    background-color: #f1c40f;
    color: #333;
    border-color: #f1c40f;
}

/* ===== CVE SECTION ===== */
.cve-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.cve-item {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border-left: 5px solid #4a6fa5;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.cve-item:nth-child(1) { animation-delay: 0.1s; }
.cve-item:nth-child(2) { animation-delay: 0.2s; }
.cve-item:nth-child(3) { animation-delay: 0.3s; }

.cve-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

body.dark-theme .cve-item {
    background-color: #2c3e50;
    border-left-color: #f1c40f;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.cve-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.cve-header h3 {
    color: #4a6fa5;
    font-size: 1.5rem;
    font-weight: 600;
}

body.dark-theme .cve-header h3 {
    color: #f1c40f;
}

.cve-date {
    font-size: 0.95rem;
    color: #7f8c8d;
    background-color: #f5f5f5;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

body.dark-theme .cve-date {
    background-color: #34495e;
    color: #bdc3c7;
}

.cve-description {
    margin-bottom: 1.8rem;
    line-height: 1.7;
    color: #555;
}

body.dark-theme .cve-description {
    color: #ddd;
}

.cve-link {
    color: #4a6fa5;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.cve-link:hover {
    border-bottom-color: #4a6fa5;
    gap: 0.8rem;
}

body.dark-theme .cve-link {
    color: #f1c40f;
}

body.dark-theme .cve-link:hover {
    border-bottom-color: #f1c40f;
}

/* ===== BLOGS SECTION ===== */
.blogs-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.blog-card {
    background-color: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border-top: 5px solid #4a6fa5;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

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

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

body.dark-theme .blog-card {
    background-color: #2c3e50;
    border-top-color: #f1c40f;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.blog-header {
    margin-bottom: 1.5rem;
}

.blog-header h3 {
    color: #4a6fa5;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

body.dark-theme .blog-header h3 {
    color: #f1c40f;
}

.blog-date {
    font-size: 0.95rem;
    color: #7f8c8d;
}

body.dark-theme .blog-date {
    color: #bdc3c7;
}

.blog-excerpt {
    margin-bottom: 1.8rem;
    line-height: 1.7;
    color: #555;
}

body.dark-theme .blog-excerpt {
    color: #ddd;
}

.blog-link {
    color: #4a6fa5;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.blog-link:hover {
    border-bottom-color: #4a6fa5;
    gap: 0.8rem;
}

body.dark-theme .blog-link {
    color: #f1c40f;
}

body.dark-theme .blog-link:hover {
    border-bottom-color: #f1c40f;
}

/* ===== CERTIFICATIONS SECTION ===== */
.certifications-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.cert-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

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

.cert-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

body.dark-theme .cert-card {
    background-color: #2c3e50;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.cert-img {
    height: 200px;
    overflow: hidden;
}

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

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

.cert-info {
    padding: 1.5rem;
}

.cert-info h3 {
    color: #4a6fa5;
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    line-height: 1.3;
}

body.dark-theme .cert-info h3 {
    color: #f1c40f;
}

.cert-issuer {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

body.dark-theme .cert-issuer {
    color: #bdc3c7;
}

.cert-date {
    color: #888;
    font-size: 0.9rem;
}

body.dark-theme .cert-date {
    color: #95a5a6;
}

/* ===== CONTACT SECTION ===== */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem;
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

body.dark-theme .contact-info {
    background-color: #2c3e50;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

body.dark-theme .contact-item {
    background-color: #34495e;
}

.contact-item:hover {
    transform: translateX(10px);
    background-color: #e9ecef;
}

body.dark-theme .contact-item:hover {
    background-color: #3d566e;
}

.contact-item i {
    font-size: 1.5rem;
    color: #4a6fa5;
    width: 30px;
    text-align: center;
}

body.dark-theme .contact-item i {
    color: #f1c40f;
}

.contact-item span,
.contact-item a {
    font-size: 1.1rem;
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

body.dark-theme .contact-item span,
body.dark-theme .contact-item a {
    color: #f0f0f0;
}

.contact-item a:hover {
    color: #4a6fa5;
}

body.dark-theme .contact-item a:hover {
    color: #f1c40f;
}

/* ===== FOOTER ===== */
.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

body.dark-theme .footer {
    background-color: #1a252f;
}

.footer p {
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.footer p:last-child {
    margin-bottom: 0;
    color: #bdc3c7;
    font-size: 0.9rem;
}

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

@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);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 992px) {
    .home-content {
        flex-direction: column;
        text-align: center;
    }
    
    .animated-title {
        font-size: 2.8rem;
    }
    
    .section-title {
        font-size: 2.4rem;
    }
    
    .profile-img {
        width: 280px;
        height: 280px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .section {
        padding: 80px 0;
        margin: 20px 15px;
    }
    
    .animated-title {
        font-size: 2.3rem;
    }
    
    .animated-subtitle {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .text-content {
        padding: 2rem;
    }
    
    .cve-container,
    .blogs-container,
    .certifications-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .profile-img {
        width: 250px;
        height: 250px;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .contact-info {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .section {
        padding: 60px 0;
        margin: 15px 10px;
    }
    
    .animated-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .profile-img {
        width: 220px;
        height: 220px;
    }
    
    .theme-toggle {
        top: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
}