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

:root {
    --bg: #fcfcfc;
    --surface: #ffffff;
    --text: #1a1a18;
    --muted: #6b6b67;
    --border: rgba(26, 26, 24, 0.1);
    --border-hover: rgba(26, 26, 24, 0.22);
    --accent-medium: #c17d3a;
    --accent-github: #2d6a4f;
    --accent-tableau: #2563a8;
    --tag-bg: rgba(26, 26, 24, 0.05);
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── NAV ── */
nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    /* logo left, nav-right pushed to right */
    padding: 1.4rem 3rem;
    border-bottom: 0.5px solid var(--border);
    background: var(--bg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-logo {
    font-family: 'Lora', serif;
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--muted);
    text-decoration: none;
    letter-spacing: 0.03em;
    transition: color 0.2s;
}

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

.pin-badge {
    position: absolute;
    top: 0.85rem;
    right: 0.85rem;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--text);
    color: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s;
}

.pin-badge svg {
    width: 13px;
    height: 13px;
}

.card:hover .pin-badge {
    opacity: 0;
}

/* arrow takes over on hover */

/* ── HERO ── */
.hero {
    text-align: center;
    padding: 5rem 2rem 3.5rem;
    max-width: 680px;
    margin: 0 auto;
}

.hero h1 {
    font-family: 'Lora', serif;
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.05rem;
    color: var(--muted);
    line-height: 1.7;
    font-weight: 300;
}

/* ── FILTER BAR ── */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1.5rem 2rem 2.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: 'DM Sans', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    border: 0.5px solid var(--border);
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    transition: all 0.18s;
    letter-spacing: 0.02em;
}

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

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

.filter-btn.active[data-filter="medium"] {
    background: var(--accent-medium);
    border-color: var(--accent-medium);
}

.filter-btn.active[data-filter="github"] {
    background: var(--accent-github);
    border-color: var(--accent-github);
}

.filter-btn.active[data-filter="tableau"] {
    background: var(--accent-tableau);
    border-color: var(--accent-tableau);
}

/* ── GRID ── */
.grid-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 5rem;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* ── CARD ── */
.card {
    background: var(--surface);
    border: 0.5px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, transform 0.2s;
    position: relative;
}

.card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.card-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    object-position: top;
    display: block;
    background: var(--bg);
}

.card-thumb-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.card-thumb-placeholder svg {
    opacity: 0.18;
    width: 48px;
    height: 48px;
}

.card-body {
    padding: 1.2rem 1.4rem 1.4rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.source-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.28rem 0.65rem;
    border-radius: 999px;
}

.source-pill.medium {
    background: #fff1e5;
    color: #8a4a10;
}

.source-pill.github {
    background: #e6f4ef;
    color: #145232;
}

.source-pill.tableau {
    background: #e8f0fb;
    color: #113f7a;
}

.source-pill svg {
    width: 11px;
    height: 11px;
    flex-shrink: 0;
}

.card-date {
    font-size: 0.75rem;
    color: var(--muted);
}

.card-title {
    font-family: 'Lora', serif;
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.35;
    letter-spacing: -0.01em;
}

.card-desc {
    font-size: 0.875rem;
    color: var(--muted);
    line-height: 1.65;
    font-weight: 300;
    flex: 1;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.2rem;
}

.tag {
    font-size: 0.7rem;
    padding: 0.22rem 0.6rem;
    background: var(--tag-bg);
    border-radius: 999px;
    color: var(--muted);
}

.card-arrow {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 0.5px solid var(--border);
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.2s, transform 0.2s;
}

.card:hover .card-arrow {
    opacity: 1;
    transform: translateY(0);
}

.card-arrow svg {
    width: 13px;
    height: 13px;
}

/* ── LOADING STATE ── */
.loading-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.skeleton {
    background: linear-gradient(90deg, var(--bg) 25%, rgba(26, 26, 24, 0.06) 50%, var(--bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.4s infinite;
    border-radius: 6px;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ── EMPTY STATE ── */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem;
    color: var(--muted);
}

/* ── FOOTER ── */
footer {
    border-top: 0.5px solid var(--border);
    text-align: center;
    padding: 2rem;
    font-size: 0.8rem;
    color: var(--muted);
}

footer a {
    color: var(--muted);
    text-decoration: underline;
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
    nav {
        padding: 1.1rem 1.25rem;
    }

    .hero {
        padding: 3rem 1.25rem 2.5rem;
    }

    .grid-wrapper {
        padding: 0 1.25rem 4rem;
    }

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


/* dark mode variables */
body.dark {
    --bg: #111110;
    --surface: #1c1c1a;
    --text: #f0ede8;
    --muted: #8a8a85;
    --border: rgba(240, 237, 232, 0.1);
    --border-hover: rgba(240, 237, 232, 0.22);
    --tag-bg: rgba(240, 237, 232, 0.07);
}

.theme-toggle {
    background: transparent;
    border: 0.5px solid var(--border);
    border-radius: 50%;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--muted);
    transition: border-color 0.2s, color 0.2s;
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

.theme-toggle svg {
    width: 15px;
    height: 15px;
}

body.dark .source-pill.medium {
    background: #3d2008;
    color: #f5b97a;
}

body.dark .source-pill.github {
    background: #0d2e1e;
    color: #6fcf97;
}

body.dark .source-pill.tableau {
    background: #0d1f3e;
    color: #7eb3f5;
}