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

:root {
    --primary-color: #4361ee;
    --primary-dark: #3045c8;
    --secondary-color: #2ec4b6;
    --dark-color: #1a1a2e;
    --dark-secondary: #232946;
    --light-color: #f8f9fa;
    --text-color: #222831;
    --text-secondary: #495057;
    --background-light: #ffffff;
    --background-alt: #f4f4f6;
    --shadow-light: 0 3px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.15);
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --border-radius-sm: 5px;
    --border-radius-md: 10px;
    --border-radius-lg: 20px;
}

html {
    scroll-behavior: smooth;
    font-size: 62.5%; /* 1rem = 10px */
}

body {
    font-family: 'Roboto', sans-serif;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-light);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul, ol {
    list-style: none;
}

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

section {
    padding: 10rem 5%;
    position: relative;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 3.6rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 6rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 4px;
    background: var(--primary-color);
    bottom: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 5px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 3rem;
    font-size: 1.6rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    cursor: pointer;
    text-align: center;
}

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

.primary-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* ===== PRELOADER ===== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--background-light);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader {
    display: flex;
    gap: 1rem;
}

.dot {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--primary-color);
    animation: bounce 1.4s infinite ease-in-out both;
}

.dot:nth-child(1) {
    animation-delay: -0.32s;
}

.dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.highlight {
    color: #FF5F15; /* Apple-like orange accent color */
    font-weight: 600;
  }
  .main-heading {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
  }

/* ===== NAVBAR ===== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    background-color: transparent;
    z-index: 100;
    transition: background-color 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}

#navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.5rem 5%;
    box-shadow: var(--shadow-light);
}

.nav-left, .nav-right {
    display: flex;
    gap: 3rem;
}

.nav-center .logo {
    font-family: 'Poppins', sans-serif;
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary-color);
}

#navbar a {
    position: relative;
    font-weight: 500;
    font-size: 1.6rem;
    color: var(--text-color);
}

#navbar a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

#navbar a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: transform 0.3s ease, opacity 0.3s ease;
    background-color: var(--text-color);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--background-light);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    z-index: 99;
    transition: right 0.5s ease;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu a {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-color);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 10rem;
    background: linear-gradient(135deg, rgba(248,249,250,1) 0%, rgba(241,243,254,1) 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.text-content {
    flex: 1;
}

.main-heading {
    font-family: 'Poppins', sans-serif;
    font-size: 5.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.sub-heading {
    font-size: 2.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.highlight {
    color: var(--primary-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 30%;
    background-color: rgba(67, 97, 238, 0.15);
    bottom: 0;
    left: 0;
    z-index: -1;
}

.description {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    max-width: 600px;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    animation: fadeInUp 1s ease 0.6s;
    animation-fill-mode: both;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    animation: fadeIn 1.5s ease;
}

.profile-image-container {
    position: relative;
    width: 350px;
    height: 350px;
}

.profile-image {
    width: 350px;
    height: 350px;
    object-fit: cover;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    box-shadow: var(--shadow-medium);
    animation: morphAnimation 10s infinite alternate ease-in-out;
}

@keyframes morphAnimation {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    25% { border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%; }
    50% { border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%; }
    75% { border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%; }
    100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    animation: float 6s infinite ease-in-out;
}

.shape1 {
    width: 60px;
    height: 60px;
    background-color: rgba(67, 97, 238, 0.15);
    top: -20px;
    left: 30px;
    animation-delay: 0s;
}

.shape2 {
    width: 40px;
    height: 40px;
    background-color: rgba(46, 196, 182, 0.15);
    bottom: 30px;
    right: 30px;
    animation-delay: 1s;
}

.shape3 {
    width: 35px;
    height: 35px;
    background-color: rgba(255, 209, 102, 0.2);
    bottom: 80px;
    left: 20px;
    animation-delay: 2s;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-secondary);
    font-size: 1.4rem;
}

.bounce {
    animation: bounce 2s infinite;
    font-size: 1.8rem;
    margin-top: 1rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-15px); }
    60% { transform: translateY(-7px); }
}

/* ===== ABOUT SECTION ===== */
.about {
    background-color: var(--background-alt);
}

.about-container {
    display: flex;
    gap: 6rem;
    max-width: 1200px;
    margin: 0 auto;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-medium);
    transition: transform 0.5s ease;
}

.about-img:hover {
    transform: translateY(-10px);
}

.about-content {
    flex: 1;
}

.experience-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.about-text {
    font-size: 1.7rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.skills-container {
    margin-top: 4rem;
}

.skills-container h3 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
}

.skill-groups {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-group h4 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

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

.skill-tag {
    padding: 0.8rem 1.6rem;
    background-color: white;
    border-radius: var(--border-radius-sm);
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--text-color);
    box-shadow: var(--shadow-light);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
    background-color: var(--primary-color);
    color: white;
}


/* ====PROFILE SECTION ==== */

.profile-grid {
    display: flex; /* Use flexbox for horizontal layout */
    flex-wrap: wrap; /* Allow wrapping to the next line if necessary */
    gap: 20px; /* Space between cards */
    
}

.profile-card {
    flex: 1; /* Allow cards to grow and fill the space */
    min-width: 250px; /* Set a minimum width for each card */
    max-width: 300px; /* Set a maximum width for each card */
    border: 3px solid #141111; /* Optional: Add a border */
    border-radius: 8px; /* Optional: Add rounded corners */
    overflow: hidden; /* Optional: Hide overflow */
    transition: transform 0.2s; /* Optional: Add a hover effect */
}

.profile-card:hover {
    transform: scale(1.05); /* Optional: Scale up on hover */
}

.profile-img img {
    width: 100%; /* Make the image responsive */
    height: 150px;
    object-fit: contain;
    padding: 15px;
    background: #f8f9fa; /* Maintain aspect ratio */
}

.profile-info {
    padding: 20px; /* Padding on all sides */
}
.profile-title {
    margin: 0 0 12px 0;
    font-size: 1.3rem;
    color: #2c3e50;
}
.profile-desc {
    margin: 0;
    font-size: 1.3rem;
    color: #555;
    line-height: 1.5;
}


/* ===== PROJECTS SECTION ===== */
.projects {
    background-color: var(--background-light);
}

.project-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.filter-btn {
    padding: 1rem 2rem;
    background-color: transparent;
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition-medium);
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
}

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

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

.project-card:hover .project-img img {
    transform: scale(1.1);
}

.project-links {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-link {
    width: 45px;
    height: 45px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.project-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.project-info {
    padding: 2.5rem;
}

.project-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.project-desc {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-tech span {
    font-size: 1.3rem;
    padding: 0.6rem 1.2rem;
    background-color: var(--background-alt);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
}

.see-more-container {
    text-align: center;
    margin-top: 5rem;
}

.see-more-btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    background-color: transparent;
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--primary-color);
    transition: var(--transition-fast);
}

.see-more-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* ===== RESUME SECTION ===== */
.resume {
    background: linear-gradient(135deg, rgba(248,249,250,1) 0%, rgba(241,243,254,1) 100%);
}

.resume-container {
    max-width: 1000px;
    margin: 0 auto;
}

.resume-tabs {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
}

.tab-btn {
    padding: 1.2rem 3rem;
    background-color: var(--background-light);
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-light);
}

.tab-btn:hover, .tab-btn.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.tab-content {
    position: relative;
    min-height: 500px;
}

.tab-pane {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.tab-pane.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.timeline {
    position: relative;
    padding-left: 5rem;
}

.timeline::before {
    content: "";
    position: absolute;
    width: 2px;
    height: 100%;
    background-color: var(--primary-color);
    left: 0;
    top: 0;
}

.timeline-item {
    position: relative;
    margin-bottom: 5rem;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    top: 0;
    left: -6rem;
    border: 3px solid white;
    box-shadow: var(--shadow-light);
}

.timeline-date {
    position: absolute;
    left: -18rem;
    top: 0;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--primary-color);
    width: 10rem;
    text-align: right;
}

.timeline-content {
    background-color: white;
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-light);
    transition: var(--transition-medium);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.timeline-content h3 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.timeline-content p {
    font-size: 1.6rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.timeline-content ul {
    padding-left: 2rem;
}

.timeline-content ul li {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    position: relative;
    list-style-type: disc;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.certification-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2.5rem;
    background-color: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-light);
    transition: var(--transition-medium);
}

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

.certification-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.4rem;
    color: var(--primary-color);
}

.certification-details h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.certification-details p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.certification-date {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--primary-color);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.achievement-card {
    padding: 2.5rem;
    background-color: white;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-light);
    transition: var(--transition-medium);
}

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

.achievement-card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.achievement-card p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.achievement-card a {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.achievement-card a:hover {
    color: var(--primary-color-dark); /* Change to a darker shade on hover */
}

.resume-download {
    text-align: center;
    margin-top: 5rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 3rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1.6rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.download-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background-color: var(--background-light);
}

.contact-container {
    display: flex;
    gap: 5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.contact-info > p {
    font-size: 1.7rem;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    max-width: 400px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 4rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.contact-item i {
    font-size: 2.2rem;
    color: var(--primary-color);
}

.contact-item h4 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contact-item p {
    font-size: 1.6rem;
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background-color: var(--background-alt);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    color: var(--text-color);
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.contact-form-container {
    flex: 1;
}

.contact-form {
    background-color: white;
    padding: 4rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-medium);
}

.form-group {
    position: relative;
    margin-bottom: 3rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.5rem 2rem;
    font-family: 'Roboto', sans-serif;
    font-size: 1.6rem;
    color: var(--text-color);
    background-color: var(--background-alt);
    border: none;
    border-radius: var(--border-radius-md);
    transition: box-shadow 0.3s ease;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-color);
}

.input-focus-effect {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.form-group input:focus ~ .input-focus-effect,
.form-group textarea:focus ~ .input-focus-effect {
    width: 100%;
}

.submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    padding: 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.submit-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

.submit-btn i {
    transition: transform 0.3s ease;
}

.submit-btn:hover i {
    transform: translateX(5px);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--dark-secondary);
    color: white;
    padding: 5rem 5% 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo h2 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo p {
    font-size: 1.5rem;
    opacity: 0.8;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-nav a {
    font-size: 1.5rem;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-nav a:hover {
    opacity: 1;
    color: var(--primary-color);
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    transition: var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 1.4rem;
    opacity: 0.7;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    z-index: 90;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-dark);
}

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

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

/* ===== RESPONSIVE STYLES ===== */
@media screen and (max-width: 1200px) {
    html {
        font-size: 60%;
    }
    
    .hero-content {
        padding: 0 5%;
    }
}

@media screen and (max-width: 992px) {
    html {
        font-size: 55%;
    }
    
    .nav-left, .nav-right {
        display: none;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }
    
    .description {
        margin: 0 auto 4rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-container {
        flex-direction: column;
    }
    
    .timeline-date {
        position: relative;
        left: 0;
        top: 0;
        text-align: left;
        margin-bottom: 1rem;
    }
    
    .contact-container {
        flex-direction: column;
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 50%;
    }
    
    section {
        padding: 8rem 5%;
    }
    
    .main-heading {
        font-size: 4.5rem;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .resume-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 80%;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

@media screen and (max-width: 576px) {
    html {
        font-size: 45%;
    }
    
    .main-heading {
        font-size: 4rem;
    }
    
    .skills-container {
        margin-top: 3rem;
    }
    
    .contact-form {
        padding: 3rem 2rem;
    }
}