:root {
    --miku-teal: #39C5BB;
    --miku-pink: #FF70A6;
    --dark-bg: #1A1A1A;
    --dark-card-bg: #282828;
    --light-text: #E0E0E0;
    --light-text-secondary: #b0b0b0;
    --border-color: #444444;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--dark-bg);
    color: var(--light-text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    color: var(--miku-teal);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--miku-pink);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--miku-teal);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

h1.section-title {
    border-bottom: 2px solid var(--miku-pink);
    padding-bottom: 0.3em;
    margin-bottom: 1em;
    font-size: 2.2em;
    margin-top: 0em;
}

.miku-teal { color: var(--miku-teal); }
.miku-pink-link { color: var(--miku-pink); }
.miku-pink-link:hover { color: var(--miku-teal); }
.miku-heart { color: var(--miku-pink); }


.navbar {
    background-color: var(--dark-card-bg);
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.nav-brand {
    font-size: 1.8em;
    font-weight: bold;
    color: var(--miku-teal);
}
.nav-brand:hover {
    color: var(--light-text);
}

.nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    color: var(--light-text);
    font-size: 1.1em;
}

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

.content-area {
    padding-top: 2rem;
    padding-bottom: 2rem;
    flex-grow: 1;
}

.page-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--dark-card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

#about-me h2 {
    margin-top: 0;
}
#about-me p {
    color: var(--light-text-secondary);
    margin-bottom: 1em;
}
.social-links-list {
    list-style: none;
    padding: 0;
}
.social-links-list li {
    margin-bottom: 0.5em;
}


.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: #333;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(57, 197, 187, 0.3);
}

.project-card h3 {
    margin-top: 0;
}

.project-card h3 a {
    color: var(--miku-teal);
}
.project-card h3 a:hover {
    color: var(--miku-pink);
}

.project-card p {
    color: var(--light-text-secondary);
    font-size: 0.95em;
    margin-bottom: 1em;
}

.btn {
    display: inline-block;
    padding: 0.7em 1.5em;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-miku {
    background-color: var(--miku-teal);
    color: var(--dark-bg);
}
.btn-miku:hover {
    background-color: #2aabb2;
    color: var(--dark-bg);
    transform: scale(1.05);
}

.btn-miku-secondary {
    background-color: var(--miku-pink);
    color: var(--dark-bg);
}
.btn-miku-secondary:hover {
    background-color: #e66395;
    color: var(--dark-bg);
    transform: scale(1.05);
}


.project-detail-section {
    padding: 1.5rem;
    background-color: var(--dark-card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}
.back-link {
    display: inline-block;
    color: var(--miku-pink);
    font-weight: bold;
}
.back-link:hover {
    color: var(--miku-teal);
}

.project-image {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    border: 2px solid var(--miku-teal);
}

.project-long-description {
    margin-bottom: 1.5rem;
    color: var(--light-text-secondary);
}

.tech-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-list li {
    background-color: #333;
    color: var(--miku-teal);
    padding: 0.3em 0.8em;
    border-radius: 15px;
    font-size: 0.9em;
    border: 1px solid var(--miku-teal);
}

.project-links a {
    margin-right: 10px;
    margin-bottom: 10px;
}

.site-footer {
    background-color: var(--dark-card-bg);
    color: var(--light-text-secondary);
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.9em;
    border-top: 1px solid var(--border-color);
}

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

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        align-items: flex-start;
    }
    .nav-links {
        margin-top: 10px;
        flex-direction: column;
    }
    .nav-links li {
        margin-left: 0;
        margin-bottom: 5px;
    }
    .project-list {
        grid-template-columns: 1fr;
    }
}


@media (max-width: 768px) {
    h1.section-title {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.5em;
    }

    .container {
        width: 95%;
        padding: 0 10px;
    }

    .navbar .container {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        width: 100%;
        margin-top: 0;
    }

    .nav-links li {
        margin-left: 0;
        margin-bottom: 0.75rem;
    }

    .page-section,
    .project-card,
    .project-detail-section {
        padding: 1rem;
    }

    .project-list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .project-links {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .project-links a {
        margin-right: 0;
        text-align: center;
    }

    .site-footer {
        padding: 1rem 0;
    }
}