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

:root {
    --bg: #ffffff;
    --text: #1a1a1a;
    --text-soft: #6b6b6b;
    --accent: #2a2a2a;
    --accent-soft: #f2f2f2;
    --card: #fafafa;
    --border: #e8e8e8;
    --border-strong: #9e9c9c;
    --shadow-sm: 0 5px 15px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 10px 25px -8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px -12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
    --bg: #181818;
    --text: #f0f0f0;
    --text-soft: #a8a8a8;
    --accent: #e0e0e0;
    --accent-soft: #282828;
    --card: #222222;
    --border: #333333;
    --border-strong: #444444;
    --shadow-sm: 0 5px 15px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 25px -8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 40px -12px rgba(0, 0, 0, 0.5);
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
    transition: background-color 0.2s;
    overflow-x: hidden;
}

.bg-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(var(--border-strong) 1.2px, transparent 1.2px);
    background-size: 32px 32px;
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    margin-bottom: 4rem;
    border-bottom: 1px solid var(--border);
    position: relative;
}


header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100px;
    height: 2px;
    background: var(--accent);
    opacity: 0.2;
}

.logo {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    position: relative;
    padding-left: 1rem;
}

.logo::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: var(--accent);
    opacity: 0.3;
    border-radius: 2px;
}

.logo span {
    font-weight: 300;
    color: var(--text-soft);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 100;
    position: relative;
    margin-left: auto;
    margin-right: 1rem;
}

.hamburger .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text);
    transition: all 0.3s;
    border-radius: 2px;
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.hamburger.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-soft);
    font-size: 0.95rem;
    transition: all 0.2s;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.2s;
}

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

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

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-soft);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.2s;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--accent-soft);
    color: var(--text);
}

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    position: relative;
}

.hero-content h1::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -20px;
    width: 60px;
    height: 60px;
    border-left: 2px solid var(--border-strong);
    border-top: 2px solid var(--border-strong);
    opacity: 0.3;
    z-index: -1;
}

.hero-content h1 span {
    color: var(--text-soft);
    font-weight: 400;
    display: block;
    font-size: 0.7em;
    margin-top: 0.5rem;
}

.hero-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
    margin-bottom: 2rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 1.5rem;
}

.hero-info-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.hero-info-item i {
    width: 24px;
    color: var(--text);
    opacity: 0.6;
}

.hero-info-item span {
    font-size: 0.95rem;
    color: var(--text-soft);
}

.hero-info-item strong {
    color: var(--text);
    font-weight: 600;
    margin-left: 0.3rem;
}

.hero-description {
    font-size: 1rem;
    color: var(--text-soft);
    margin-bottom: 2rem;
    max-width: 500px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn {
    padding: 0.8rem 2rem;
    border: 1px solid var(--border);
    border-radius: 40px;
    background: var(--card);
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn:hover {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-cv {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.btn-cv:hover {
    background: var(--accent-soft);
    color: var(--text);
    border-color: var(--text);
}

.hero-stats {
    display: flex;
    gap: 2.5rem;
}

.stat {
    display: flex;
    flex-direction: column;
    position: relative;
}

.stat-number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.3rem;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
}

.photo-frame {
    width: 100%;
    max-width: 380px;
    max-height: 530px;

    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    overflow: hidden;
    background: var(--accent-soft);
    box-shadow: var(--shadow-lg);
    transition: all 0.4s;
}

.photo-frame:hover {
    border-radius: 40% 60% 60% 40% / 40% 40% 60% 60%;
    transform: scale(1.02);
}

.photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: filter 0.3s;
}

.photo-frame:hover .photo {
    filter: grayscale(0%);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: none;
    justify-content: center;
    align-items: center;
}

.modal {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50px 30px 60px 30px / 30px 40px 50px 40px;
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.modal p {
    color: var(--text-soft);
    margin-bottom: 2rem;
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-soft);
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--text);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-soft);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 30px;
    font-size: 1rem;
    color: var(--text);
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--text);
}

.modal-btn {
    width: 100%;
    padding: 1rem;
    background: var(--text);
    color: var(--bg);
    border: none;
    border-radius: 40px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.modal-btn:hover {
    background: var(--accent-soft);
    color: var(--text);
}

.about-short {
    margin-bottom: 5rem;
    padding: 3rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 50px 50px 30px 30px / 30px 30px 50px 50px;
    position: relative;
    box-shadow: var(--shadow-md);
}

.about-short p {
    font-size: 1.1rem;
    color: var(--text-soft);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    line-height: 1.9;
}

.about-short strong {
    color: var(--text);
    font-weight: 600;
    position: relative;
}

.about-short strong::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent);
    opacity: 0.1;
    border-radius: 2px;
}

section {
    margin-bottom: 6rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::before {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 70px;
    height: 3px;
    background: var(--accent);
    opacity: 0.15;
    border-radius: 2px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 30px;
    height: 3px;
    background: var(--accent);
    opacity: 0.5;
    border-radius: 2px;
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.2rem;
}

.stack-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 30px 20px 30px 20px;
    padding: 1.8rem 0.5rem;
    text-align: center;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(5px);
}

.stack-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    border-radius: 20px 30px 20px 30px;
    box-shadow: var(--shadow-md);
}

.stack-card i {
    font-size: 2.2rem;
    margin-bottom: 0.8rem;
    transition: transform 0.3s;
}

.stack-card:hover i {
    transform: scale(1.1);
}

.stack-card span {
    font-weight: 500;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.8rem;
}

.stack-level {
    width: 70%;
    height: 4px;
    background: var(--border);
    margin: 0 auto;
    border-radius: 2px;
    overflow: hidden;
}

.stack-level-bar {
    height: 100%;
    background: var(--text);
    width: 0%;
    transition: width 0.4s;
    border-radius: 2px;
}

.stack-card:hover .stack-level-bar {
    width: 75%;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.8rem;
}

.project-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 50px 30px 60px 30px / 30px 40px 50px 40px;
    overflow: hidden;
    transition: all 0.4s;
    text-decoration: none;
    color: inherit;
    grid-column: span 1;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(5px);
}

.project-card.large {
    grid-column: span 2;
    grid-row: span 2;
    border-radius: 70px 40px 80px 40px / 40px 50px 60px 50px;
}

.project-card.medium {
    grid-column: span 2;
    border-radius: 60px 35px 70px 35px / 35px 45px 55px 45px;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--text);
    box-shadow: var(--shadow-lg);
    border-radius: 40px 60px 40px 60px / 60px 30px 60px 30px;
}

.project-image {
    height: 160px;
    background-size: cover;
    background-position: center;
    position: relative;
    filter: grayscale(40%);
    transition: all 0.4s;
}

.project-card.large .project-image {
    height: 280px;
}

.project-card.medium .project-image {
    height: 200px;
}

.project-card:hover .project-image {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.project-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, var(--bg), transparent);
    opacity: 0.5;
}

.project-image i {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: white;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.8rem;
    border-radius: 50%;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 2;
}

.project-info {
    padding: 1.8rem;
    position: relative;
}

.project-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.project-info p {
    color: var(--text-soft);
    font-size: 0.9rem;
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.project-tag {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 0.3rem 1rem;
    font-size: 0.7rem;
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s;
}

.project-tag:hover {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.2rem;

}

.cert-grid a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.cert-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 30px 20px 30px 20px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.cert-card:hover {
    border-color: var(--text);
    transform: translateX(5px) translateY(-3px);
    border-radius: 20px 30px 20px 30px;
    box-shadow: var(--shadow-md);
}

.cert-card i {
    font-size: 2rem;
    color: var(--text-soft);
    transition: all 0.3s;
}

.cert-card:hover i {
    transform: scale(1.1);
    color: var(--text);
}

.cert-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    font-weight: 600;
}

.cert-info p {
    color: var(--text-soft);
    font-size: 0.8rem;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
}

.note-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 40px 20px 40px 20px;
    padding: 2rem;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.note-card::before {
    content: '“';
    position: absolute;
    top: 0.5rem;
    left: 1.5rem;
    font-size: 4rem;
    color: var(--border-strong);
    opacity: 0.3;
    font-family: serif;
}

.note-card:hover {
    border-color: var(--text);
    transform: translateY(-5px);
    border-radius: 20px 40px 20px 40px;
    box-shadow: var(--shadow-md);
}

.note-quote {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    font-style: italic;
    color: var(--text-soft);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.note-date {
    color: var(--text-soft);
    font-size: 0.8rem;
    text-align: right;
    border-top: 1px dashed var(--border);
    padding-top: 1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.2rem;
}

.contact-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 40px 20px 40px 20px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-sm);
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: var(--text);
    border-radius: 20px 40px 20px 40px;
    box-shadow: var(--shadow-lg);
}

.contact-card i {
    font-size: 2.2rem;
    color: var(--text);
    margin-bottom: 1rem;
    transition: all 0.3s;
}

.contact-card:hover i {
    transform: scale(1.1);
}

.contact-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-card p {
    color: var(--text-soft);
    font-size: 0.85rem;
    word-break: break-word;
}

footer {
    text-align: center;
    padding: 4rem 0 1rem;
    color: var(--text-soft);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: var(--accent);
    opacity: 0.2;
}

@media (max-width: 1000px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-card.large,
    .project-card.medium {
        grid-column: span 2;
        grid-row: span 1;
    }

    .project-card.large .project-image,
    .project-card.medium .project-image {
        height: 200px;
    }
}

@media (max-width: 800px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--card);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: right 0.3s;
        z-index: 99;
        box-shadow: var(--shadow-lg);
        border-left: 1px solid var(--border);
    }

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

    .nav-links a {
        font-size: 1.2rem;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-content {
        text-align: center;
    }

    .hero-info-grid {
        text-align: left;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .section-title::before,
    .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .section-title {
        display: block;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .project-card,
    .project-card.large,
    .project-card.medium {
        grid-column: span 1;
    }

    .stack-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .container {
        padding: 1.5rem;
    }

    .about-short {
        padding: 2rem;
        border-radius: 30px;
    }

    .hero-info-grid {
        grid-template-columns: 1fr;
    }
}

.fa-html5 {
    color: #E34F26;
}

.fa-css3-alt {
    color: #1572B6;
}

.fa-js {
    color: #F7DF1E;
}

.fa-java {
    color: #007396;
}

.fa-php {
    color: #777BB4;
}

.fa-node-js {
    color: #339933;
}

.fa-figma {
    color: #4a2289;
}

.fa-react {
    color: #61DAFB;
}

.fa-angular {
    color: #DD0031;
}

.fa-bootstrap {
    color: #7952B3;
}

.fa-git-alt,
.fa-git-square {
    color: #F05032;
}

.fa-firebase {
    color: #FFCA28;
}

.fa-google {
    color: #4285F4;
}

.fa-leaf {
    color: #6DB33F;
}

.fa-database {
    color: #1BA0D7;
}

.fa-server {
    color: #1BA0D7;
}



.fa-chart-bar,
.fa-chart-pie,
.fa-chart-line {
    color: #FF6384;
}

.fa-plug {
    color: #E34F26;
}

.fa-certificate {
    color: #F39C12;
}

.fa-language {
    color: #F39C12;
}

.fa-table {
    color: #217346;
}