/* Base Styles */
:root {
    --primary-color: #0071e3;
    /* Apple Blue */
    --secondary-color: #4fbaff;
    --dark-color: #1d1d1f;
    --light-color: #f5f5f7;
    --text-color: #1d1d1f;

    /* Liquid Glass / macOS Variables */
    --bg-color: #f5f5f7;
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.5);
    --card-bg: rgba(255, 255, 255, 0.75);
    --shadow-color: rgba(0, 0, 0, 0.08);
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #2997ff;
    --secondary-color: #61c3ff;
    --dark-color: #f5f5f7;
    --light-color: #1d1d1f;
    --text-color: #f5f5f7;

    /* Dark Glass Variables */
    --bg-color: #000000;
    --glass-bg: rgba(30, 30, 32, 0.65);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(40, 40, 44, 0.6);
    --shadow-color: rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.4s ease, color 0.4s ease;

    /* Vibrant dynamic background for the glass effect */
    background-image: radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 0) 0, transparent 50%), radial-gradient(at 50% 0%, hsla(225, 39%, 30%, 0.1) 0, transparent 50%), radial-gradient(at 100% 0%, hsla(339, 49%, 30%, 0.1) 0, transparent 50%);
    background-attachment: fixed;
}

/* Additional blur class for glassmorphism */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    padding: 12px 24px;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    font-weight: 600;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px var(--shadow-color);
}

section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.5rem;
    color: var(--dark-color);
    position: relative;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    padding: 20px 0;
    transition: var(--transition);
}

header.scrolled {
    padding: 10px 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    margin-right: 30px;
}

.nav-item {
    margin: 0 15px;
}

.nav-link {
    font-weight: 600;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

.profile-pic {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.profile-pic:hover {
    transform: scale(1.1);
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
    position: relative;
    z-index: 1001;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--bg-color);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

[data-theme="dark"] .hero {
    background: var(--bg-color);
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%234f46e5" fill-opacity="0.05" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    z-index: 0;
    opacity: 0.3;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--dark-color);
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-color);
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-btns {
    display: flex;
    gap: 15px;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease 0.6s;
    animation-fill-mode: both;
}

.hero-image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

.hero-image-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    opacity: 0.1;
    animation: morphing 8s ease-in-out infinite;
}

.hero-image img {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    border: 5px solid var(--primary-color);
    animation: morphing 8s ease-in-out infinite;
    animation-delay: 0.5s;
}

@keyframes morphing {
    0% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }

    50% {
        border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
    }

    100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-img {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px var(--shadow-color);
    transition: var(--transition);
    border: 1px solid var(--glass-border);
}

.about-img:hover {
    transform: rotate(0);
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.about-text p {
    margin-bottom: 20px;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
}

.skill-tag {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
    box-shadow: 0 2px 10px var(--shadow-color);
}

[data-theme="dark"] .skill-tag {
    border-color: var(--glass-border);
}

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

/* Experience Section */
.experience {
    background-color: var(--bg-color);
}

[data-theme="dark"] .experience {
    background-color: var(--bg-color);
}

.experience-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
}

.experience-timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 20px;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 100%;
    margin-bottom: 30px;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    right: auto;
    left: 10px;
    background-color: var(--bg-color);
    border: 4px solid var(--primary-color);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-content {
    padding: 25px 30px;
    background: var(--card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    position: relative;
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 var(--shadow-color);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 15px 40px var(--shadow-color);
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    color: var(--dark-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.timeline-date {
    display: inline-block;
    padding: 5px 15px;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

[data-theme="dark"] .timeline-date {
    background-color: rgba(129, 140, 248, 0.1);
}

.timeline-desc ul {
    list-style-type: disc;
    padding-left: 20px;
}

.timeline-desc li {
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: var(--text-color);
}

/* Portfolio Section */
.portfolio {
    background-color: var(--bg-color);
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
}

.filter-btn {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 10px var(--shadow-color);
}

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

/* Horizontal Scroll Portfolio Grid */
.portfolio-scroll-container,
.certificates-scroll-container {
    position: relative;
    overflow: hidden;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 0 auto;
}

.certificates-grid {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 20px 0;
    -ms-overflow-style: none;
    /* IE and Edge */
    scrollbar-width: none;
    /* Firefox */
    /* Show 3 items initially */
    max-width: calc(3 * 350px + 2 * 30px);
    /* 3 items + 2 gaps */
    margin: 0 auto;
}

.portfolio-item {
    background: var(--card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px 0 var(--shadow-color);
    transition: var(--transition);
    width: 350px;
    flex-shrink: 0;
}

.portfolio-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px var(--shadow-color);
}

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

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-img img {
    transform: scale(1.1);
}

.portfolio-content {
    padding: 20px;
}

.portfolio-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.portfolio-category {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.portfolio-desc {
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.read-more-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-bottom: 20px;
    font-size: 0.9rem;
    text-align: left;
}

.read-more-btn:hover {
    text-decoration: underline;
}

.portfolio-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.portfolio-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

/* Certificates Section */
.certificates {
    background-color: var(--card-bg);
}

/* Horizontal Scroll Certificates Grid */
.certificates-scroll-container {
    position: relative;
    overflow: hidden;
}

.certificates-grid {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 20px 0;
    -ms-overflow-style: none;
    /* IE and Edge */
    scrollbar-width: none;
    /* Firefox */
    /* Show 3 items initially */
    max-width: calc(3 * 350px + 2 * 30px);
    /* 3 items + 2 gaps */
    margin: 0 auto;
}

.certificates-grid::-webkit-scrollbar {
    display: none;
}

.carousel-nav {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 10px;
}

.carousel-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: white;
}

.certificate-item {
    background: var(--card-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px 0 var(--shadow-color);
    transition: var(--transition);
    position: relative;
    width: 320px;
    flex-shrink: 0;
}

[data-theme="dark"] .certificate-item {
    background: var(--card-bg);
}

.certificate-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.certificate-img {
    min-height: 250px;
    max-height: 350px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-color);
    padding: 10px;
}

[data-theme="dark"] .certificate-img {
    background: var(--card-bg);
}

.certificate-img img {
    width: 350px;
    height: 350px;
    max-height: 100%;
    object-fit: contain;
    transition: var(--transition);
    border-radius: 5px;
}

.certificate-item:hover .certificate-img img {
    transform: scale(1.02);
}

.certificate-content {
    padding: 20px;
}

.certificate-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.certificate-issuer {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.certificate-date {
    font-size: 0.85rem;
    color: var(--text-color);
    margin-bottom: 15px;
}

.certificate-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.certificate-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

/* Contact Modal - Always Dark Mode */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    width: 90%;
    max-width: 500px;
    border-radius: 20px;
    padding: 30px;
    position: relative;
    transform: translateY(-50px) scale(0.9);
    transition: var(--transition);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.modal.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.7;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary-color);
    opacity: 1;
    transform: rotate(90deg);
}

.modal-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-color);
    text-align: center;
}

.contact-info {
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.contact-text {
    font-size: 1rem;
    color: var(--text-color);
}

.contact-text span {
    display: block;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--text-color);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    color: var(--text-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

.contact-form textarea {
    height: 120px;
    resize: none;
}

/* Social links in modal */
.modal .social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

.modal .social-link {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-color);
    font-size: 1.2rem;
    transition: var(--transition);
}

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

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
    padding: 50px 0 20px;
}

[data-theme="dark"] footer {
    background: #0a0f1c;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: white;
}

.footer-desc {
    margin-bottom: 20px;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

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

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Styles */
@media (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-image {
        order: -1;
    }

    .hero-image-wrapper {
        width: 300px;
        height: 300px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-img {
        max-width: 500px;
        margin: 0 auto;
    }

    .portfolio-grid,
    .certificates-grid {
        max-width: calc(2 * 300px + 1 * 30px);
        /* Show 2 items on tablet */
    }

    .portfolio-item {
        width: 300px;
    }

    .certificate-item {
        width: 280px;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--glass-bg);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        border-left: 1px solid var(--glass-border);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 30px 30px;
        transition: var(--transition);
        box-shadow: -5px 0 15px var(--shadow-color);
    }

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

    .nav-list {
        flex-direction: column;
        width: 100%;
        margin-right: 0;
        margin-bottom: 30px;
    }

    .nav-item {
        margin: 10px 0;
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: 10px 0;
    }

    .header-actions {
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }

    .theme-toggle {
        align-self: flex-start;
    }

    .profile-pic {
        margin-top: 20px;
    }

    .hero {
        min-height: auto;
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-btns {
        flex-direction: column;
        gap: 10px;
    }

    .hero-btns .btn {
        width: 100%;
        text-align: center;
    }

    .portfolio-filter {
        gap: 10px;
    }

    .portfolio-desc {
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 10px;
    }

    .portfolio-desc.expanded {
        display: block;
        -webkit-line-clamp: unset;
        overflow: visible;
        margin-bottom: 20px;
    }

    .read-more-btn {
        display: block;
    }

    .filter-btn {
        padding: 6px 15px;
        font-size: 0.9rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .certificates-grid {
        max-width: 100%;
    }

    .portfolio-item {
        width: 100%;
    }

    .certificate-item {
        width: 300px;
    }
}

@media (max-width: 576px) {
    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-image-wrapper {
        width: 250px;
        height: 250px;
    }

    .certificate-img {
        min-height: 200px;
        max-height: 300px;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .certificates-grid {
        max-width: 100%;
    }

    .portfolio-item {
        width: 100%;
    }

    .certificate-item {
        width: 280px;
    }
}