/* ==========================================================================
   Author's custom styles
   ========================================================================== */

:root {
    --max-width: 900px;
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-body: #374151;
    --color-muted: #6b7280;
    --color-border: #e5e7eb;
    --color-accent: #2563eb;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-weight: 400;
    font-size: 16.8px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--max-width);
}

.header {
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
}

.header h1 {
    font-size: 28.8px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin: 0;
}

.nav-pills .nav-link.active,
.nav-pills .nav-link.active:hover,
.nav-pills .nav-link.active:focus {
    background-color: var(--color-text);
}

.nav-pills .nav-link {
    color: var(--color-muted);
    font-weight: 500;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-text);
}

h1 { font-size: 43.2px; }
h2 { font-size: 36px; }
h3 { font-size: 28.8px; }
h4 { font-size: 21.6px; }
h5 { font-size: 16.8px; }
h6 { font-size: 14.4px; }

p, li {
    color: var(--color-body);
}

a {
    color: var(--color-accent);
}

/* Tag filter */
.tag-filter-root {
    margin-bottom: 1.5rem;
}

.tag-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-filter-pill {
    display: inline-block;
    font-size: 0.96rem;
    font-weight: 500;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.3rem 0.85rem;
    background: #f9fafb;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.tag-filter-pill:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.tag-filter-pill.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
}

/* Entry cards */
.entry {
    padding: 1.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.entry:last-of-type {
    border-bottom: none;
}

.entry-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.entry-date {
    font-size: 1.14rem;
    font-weight: 600;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin: 0;
}

.entry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.entry-tag {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.15rem 0.65rem;
    background: #f9fafb;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.entry-tag:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.entry-tag:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
}

.entry-tag.selected {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
}

.entry-title {
    font-size: 1.26rem;
    font-weight: 500;
    color: var(--color-text);
    margin: 0 0 0.75rem;
}

/* Responsive, aspect-ratio locked video embeds */
.video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 6px;
    background: #000;
    margin-bottom: 1rem;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.video-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.video-row .video-wrapper {
    flex: 1 1 calc(50% - 0.5rem);
    min-width: 260px;
    margin-bottom: 0;
}

footer {
    margin-top: 1rem;
    margin-bottom: 2rem;
}

/* Pagination */
.pagination-root {
    margin-top: 1rem;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.pagination-nav,
.pagination-page {
    display: inline-block;
    font-size: 0.96rem;
    font-weight: 500;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.3rem 0.85rem;
    background: #f9fafb;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.pagination-nav:hover,
.pagination-page:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.pagination-page.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
}

.pagination-nav:disabled {
    opacity: 0.5;
    cursor: default;
    pointer-events: none;
}

footer p {
    color: var(--color-muted);
    font-size: 1.02rem;
}