:root {
    --bg-color: #121212;
    --primary-text: #EAEAEA;
    --secondary-text: #A0A0A0;
    --card-bg: #1E1E1E;
    --border-color: #2A2A2A;
    --accent-color: #D4AF37; /* Gold */
    --accent-hover: #E7C668;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--primary-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.hero {
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 0;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -2px;
    color: var(--primary-text);
    margin-bottom: 0.5rem;
}

.shimmer-text {
    background: linear-gradient(45deg, var(--primary-text) 40%, white 50%, var(--primary-text) 60%);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 8s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        background-position: 150% 0;
    }
    100% {
        background-position: -150% 0;
    }
}

.hero-subtitle {
    font-size: clamp(1.2rem, 4vw, 1.75rem);
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 2rem;
}

.hero-contacts {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--secondary-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--accent-hover);
}

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

.content {
    padding: 3rem 0;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
}

#about p, #interests ul {
    font-size: 1.1rem;
    color: var(--secondary-text);
}

#interests ul {
    list-style: none;
    padding-left: 0;
}

#interests li {
    padding-left: 1.5rem;
    position: relative;
}

#interests li::before {
    content: '✦';
    color: var(--accent-color);
    position: absolute;
    left: 0;
}

#interests strong {
    color: var(--primary-text);
    font-weight: 500;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-badge {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.skill-badge:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.2);
}

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

@media (min-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    border-color: var(--accent-color);
}

.project-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-text);
    margin-bottom: 0.5rem;
}

.project-card > p {
    color: var(--secondary-text);
    margin-bottom: 1rem;
    min-height: 48px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-stack span {
    background-color: var(--border-color);
    color: var(--secondary-text);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
}

.details-btn {
    background: none;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.details-btn:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

.details-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-out, margin-top 0.5s ease-out;
    color: var(--secondary-text);
}

.project-card.open .details-content {
    max-height: 300px;
    margin-top: 1rem;
}

.details-content p {
    margin-bottom: 0.5rem;
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--secondary-text);
    font-size: 0.9rem;
}