:root {
    --bg-main: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #0d1117;

    --border-color: #21262d;

    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --accent: #58a6ff;
    --accent-gradient: linear-gradient(90deg, #58a6ff, #8b5cf6);

    --info: #ffd800;
    --purple: #8b5cf6;

    --radius-sm: 8px;
    --radius-md: 12px;

    --transition: 0.4s ease;

    --max-width: 1100px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

html {
  scroll-behavior: smooth;
}

#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(13, 17, 23, 0.95);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.nav-container {
    max-width: var(--max-width);
    margin: auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: bold;
}

.logo svg {
    width: 22px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    cursor: pointer;
    text-decoration: none;
    color: var(--text-main);
    transition: color var(--transition);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1rem;
}

.hero-content h1 {
    font-size: 2.2rem;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content h2 {
    margin: 1rem 0;
    color: var(--text-muted);
    font-size: 1.2rem;
}

.hero-info {
    display: flex;
}

.hero-info img {
    margin-right: 0.8rem;
    height: 25px;
    width: 25px;
    margin-top: 15px;
}

.hero-info h2 {
    margin: 1rem 0;
    color: var(--info);
    font-size: 1.2rem;
}

section {
    padding: 4rem 1.5rem;
    max-width: var(--max-width);
    margin: auto;
}

.section-alt {
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 2rem;
}

.skill-card {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: transform var(--transition), box-shadow var(--transition);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.2);
}

.skill-name {
    font-weight: bold;
    margin-bottom: 10px;
    display: block;
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 2rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-image {
    font-size: 2.5rem;
    text-align: center;
    padding: 2rem;
    background: var(--bg-tertiary);
}

.project-content {
    padding: 20px;
}

.project-content h3 {
    margin-bottom: 10px;
}

.git-project-btn { 
    border: 1px solid white;
    border-radius: 0.9rem;
    padding: 0.5rem;
    background: var(--accent-gradient);
    margin-left: 1.5rem;
    margin-right: 1.5rem;
    margin-top: 0.8rem;
    text-align: center;
    transition: transform 1s ease;
}

.git-project-btn:hover {
    transform: scale(105%);
}

.git-project-btn a {
    text-decoration: none;
    color: white;
}

.git-project-btn a:hover {
    transform: scale(105%);
}

.project-tech {
    display: inline-block;
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--accent);
}

#projectSearch {
    width: 100%;
    max-width: 400px;
    padding: 12px 15px;
    margin: 2rem auto;
    display: block;

    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);

    color: var(--text-main);
    font-size: 1rem;
}

#projectSearch::placeholder {
    color: var(--text-muted);
}

#projectSearch:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.2);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.tag {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 999px;
    font-weight: 600;
    border: 1px solid transparent;
    white-space: nowrap;
}

.tag-blue {
    color: #58a6ff;
    border-color: #58a6ff;
    background: rgba(88, 166, 255, 0.1);
}

.tag-purple {
    color: #a78bfa;
    border-color: #a78bfa;
    background: rgba(167, 139, 250, 0.1);
}

.tag-green {
    color: #4ade80;
    border-color: #4ade80;
    background: rgba(74, 222, 128, 0.1);
}

.tag-red {
    color: #f87171;
    border-color: #f87171;
    background: rgba(248, 113, 113, 0.1);
}


.tag-orange {
    color: #f89c71;
    border-color: #fda982;
    background: rgba(248, 113, 113, 0.1);
}

.projects-section h2 {
    text-align: center;
}

.project-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 6px 14px;
    font-size: 0.85rem;
    border-radius: 999px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--purple);
    color: var(--purple);
}

.filter-btn.active {
    background: rgba(88, 166, 255, 0.15);
    border-color: var(--purple);
    color: var(--purple);
}

.contact-section {
    text-align: center;
    padding-bottom: 6rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.contact-links a {
    width: 75px;
    height: 75px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    transition: transform var(--transition), box-shadow var(--transition);
}

.contact-links a:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.3);
}

.contact-links img {
    width: 40px;
    height: 40px;
}

.contact-email-card {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.contact-email-card a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;

    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);

    color: var(--text-main);
    text-decoration: none;
    font-size: 1rem;

    transition: all var(--transition);
}

.contact-email-card a:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.25);
    transform: translateY(-3px);
}

.contact-email-card svg {
    width: 20px;
    height: 20px;
}

.email-icon {
    width: 40px;
    height: 40px;
    display: block;
    flex-shrink: 0;
}

.contact-email-card a:hover .email-icon {
    filter: invert(70%) sepia(80%) saturate(500%) hue-rotate(200deg);
}

.nav-links {
    transition: max-height 0.3s ease;
    overflow: hidden;
    max-height: 0;
    flex-direction: column;
}

.nav-links.open {
    max-height: 500px;
}

.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (min-width: 768px) {
    .hero-content h1 {
        font-size: 3rem;
    }

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

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

    .nav-links {
        display: flex !important;
        max-height: none !important;
        flex-direction: row;
    }
    .mobile-menu-btn {
        display: none;
    }
}

@media (min-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}