:root {
    --font-heading: 'Space Grotesk', sans-serif;
    --font-sans: 'Space Grotesk', sans-serif;
    --font-mono: 'Fira Code', monospace;
    --font-link: 'Aubrey', cursive;

    /* Light Theme (Chocolate Plum Base) */
    --color-bg: #fdfcfb;
    --color-text: #553832;
    /* Chocolate Plum */
    --color-text-secondary: #8c6a63;
    --color-accent: #A8C3A8;
    /* Celadon (converted S to C) */
    --color-border: #e8dcd9;
    --color-card-bg: #ffffff;
    --color-tag-bg: #f2ebe9;
    --color-tag-text: #553832;
    --color-hover: #A8C3A8;

    --spacing-unit: 8px;
    --container-width: 1200px;
    --transition-speed: 0.4s;
    --transition-bounce: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

[data-theme="dark"] {
    --color-bg: #1c1412;
    /* Very dark chocolate plum */
    --color-text: #f0e6e4;
    --color-text-secondary: #bbaaaa;
    --color-accent: #A8C3A8;
    /* Celadon */
    --color-border: #3d2824;
    --color-card-bg: #271c19;
    --color-tag-bg: #3d2b27;
    --color-tag-text: #A8C3A8;
    --color-hover: #A8C3A8;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

h1,
h2,
h3,
h4,
h5 {
    font-family: var(--font-heading);
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 24px;
    z-index: 1001;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    color: var(--color-text);
    transition: all var(--transition-speed);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.theme-toggle:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
    transform: rotate(15deg);
}

a {
    font-family: var(--font-link);
    font-size: 1.25rem;
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--color-text-secondary);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

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

.logo {
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

nav {
    display: flex;
    gap: 24px;
}

nav a {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

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

/* Main Content */
main {
    padding-top: 100px;
    min-height: calc(100vh - 60px);
    padding-bottom: 60px;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 0;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-logo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    margin: 0 auto 32px auto;
    background-image: url('assets/images/broken_lp_black2.png');
    background-size: cover;
    background-position: center;
    border: 1px solid var(--color-border);
    transition: background-image var(--transition-speed);
}

[data-theme="dark"] .hero-logo {
    background-image: url('assets/images/broken_lp_white2.png');
}

.hero p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.hero-socials {
    margin-top: 32px;
    display: flex;
    justify-content: center;
    gap: 24px;
}

.hero-socials a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid transparent;
}

.hero-socials a:hover {
    color: var(--color-text);
    border-bottom-color: var(--color-text);
}

.social-icon {
    width: 24px;
    height: 24px;
    vertical-align: middle;
    transition: transform var(--transition-bounce);
}

.hero-socials a:hover .social-icon {
    transform: scale(1.15) rotate(-5deg);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    background: none;
    border: 1px solid var(--color-border);
    padding: 8px 20px;
    border-radius: 100px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    color: var(--color-text-secondary);
}

.filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
    background-color: var(--color-tag-bg);
    transform: translateY(-2px);
}

.filter-btn.active {
    background-color: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
    transform: translateY(0);
}

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
}

.project-card {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all var(--transition-bounce);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(85, 56, 50, 0.08);
    /* Derived from Chocolate Plum */
    border-color: var(--color-accent);
}

.card-image {
    height: 220px;
    overflow: hidden;
    background-color: var(--color-card-bg);
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .card-image img {
    transform: scale(1.05);
}

.card-category {
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: rgba(255, 255, 255, 0.95);
    color: #553832;
    /* Keep dark text for legibility over images */
    backdrop-filter: blur(4px);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: background-color var(--transition-speed);
}

[data-theme="dark"] .card-category {
    background-color: rgba(28, 20, 18, 0.95);
    color: #A8C3A8;
    /* Celadon */
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.3;
}

.card-description {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background-color: var(--color-tag-bg);
    color: var(--color-tag-text);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Project Detail View */
.project-detail {
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.back-btn:hover {
    color: var(--color-text);
}

.detail-header {
    margin-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 40px;
}

.detail-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.1;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-bottom: 24px;
}

.detail-category {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.detail-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
}

.detail-content p {
    margin-bottom: 24px;
}

.detail-content h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-top: 48px;
    margin-bottom: 24px;
    line-height: 1.2;
}

.detail-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 16px;
}

.detail-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
}

.detail-content ul,
.detail-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.detail-content li {
    margin-bottom: 8px;
}

.detail-content blockquote {
    border-left: 4px solid var(--color-text-secondary);
    padding-left: 16px;
    margin-left: 0;
    margin-bottom: 24px;
    color: var(--color-text-secondary);
    font-style: italic;
}

.detail-content code {
    font-family: var(--font-mono);
    background-color: var(--color-tag-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.detail-content pre {
    background-color: var(--color-tag-bg);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 24px;
}

.detail-content pre code {
    background-color: transparent;
    padding: 0;
}

.detail-content img,
.detail-content video {
    width: 100%;
    border-radius: 8px;
    margin: 24px 0;
    border: 1px solid var(--color-border);
}

.detail-content iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 8px;
    margin: 24px 0;
    border: none;
    display: block;
    background-color: var(--color-card-bg);
}

.detail-content audio {
    width: 100%;
    margin: 24px 0;
    outline: none;
}

/* Links in text */
.hero p a,
.detail-content p a,
.detail-content a {
    color: var(--color-accent);
    font-weight: bold;
    text-decoration: none;
    transition: color var(--transition-speed);
}

.hero p a:hover,
.detail-content p a:hover,
.detail-content a:hover {
    color: var(--color-text);
    text-decoration: underline;
}

.detail-links {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.link-item {
    display: block;
    margin-bottom: 12px;
    font-weight: 500;
}

/* Footer */
footer {
    border-top: 1px solid var(--color-border);
    padding: 40px 0;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

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

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