@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
    --bg-primary: #0f1117;
    --bg-raised: #181a24;
    --bg-hover: #1e2130;
    --clr-text: #e4e6ef;
    --clr-dim: #8b8fa7;
    --clr-faint: #4e5270;
    --clr-accent: #06d6a0;
    --clr-accent-dim: #05b486;
    --clr-accent-glow: rgba(6,214,160,.12);
    --border-clr: #262938;
    --rds: 10px;
    --ease: .22s ease;
}

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

html { scroll-behavior: smooth }

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--clr-text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

img { display: block; max-width: 100% }
a { color: inherit }

.shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Topbar ===== */
.topbar {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(15,17,23,.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-clr);
}
.topbar__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .85rem 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}
.topbar__brand {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--clr-text);
    text-decoration: none;
    letter-spacing: -.3px;
    white-space: nowrap;
    transition: color var(--ease);
}
.topbar__brand:hover { color: var(--clr-accent) }

.topbar__nav {
    list-style: none;
    display: flex;
    gap: .25rem;
    flex-wrap: wrap;
}
.topbar__nav li a {
    display: block;
    padding: .4rem .9rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .5px;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--clr-dim);
    border-radius: 6px;
    transition: color var(--ease), background var(--ease);
}
.topbar__nav li a:hover {
    color: var(--clr-accent);
    background: var(--clr-accent-glow);
}
.topbar__nav li a.is-current {
    color: var(--bg-primary);
    background: var(--clr-accent);
}

/* ===== Hero Banner ===== */
.hero-banner {
    padding: 4.5rem 1.5rem 3.5rem;
    text-align: center;
    border-bottom: 1px solid var(--border-clr);
    background:
        radial-gradient(ellipse 70% 50% at 50% 0%, var(--clr-accent-glow), transparent);
}
.hero-banner__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.6rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: .6rem;
    color: #fff;
}
.hero-banner__text {
    max-width: 540px;
    margin: 0 auto;
    color: var(--clr-dim);
    font-size: .95rem;
    line-height: 1.65;
}

/* ===== Feed ===== */
.feed {
    flex: 1;
}
.feed__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3rem;
}

/* ===== Spotlight (lead post) ===== */
.spotlight {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    background: var(--bg-raised);
    border-radius: var(--rds);
    overflow: hidden;
    border: 1px solid var(--border-clr);
    margin-bottom: 3rem;
    transition: border-color var(--ease);
}
.spotlight:hover { border-color: var(--clr-faint) }

.spotlight__media { overflow: hidden }
.spotlight__media img {
    width: 100%;
    height: 100%;
    min-height: 340px;
    object-fit: cover;
    transition: transform .5s ease;
}
.spotlight:hover .spotlight__media img { transform: scale(1.03) }
.spotlight__media a { display: block; height: 100% }

.spotlight__info {
    padding: 2.5rem 2.2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: .6rem;
}
.spotlight__date {
    font-size: .75rem;
    color: var(--clr-faint);
    text-transform: uppercase;
    letter-spacing: .5px;
}
.spotlight__heading {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.65rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -.3px;
}
.spotlight__heading a { text-decoration: none; transition: color var(--ease) }
.spotlight__heading a:hover { color: var(--clr-accent) }
.spotlight__summary {
    color: var(--clr-dim);
    font-size: .9rem;
    line-height: 1.6;
}

/* ===== Badge ===== */
.badge {
    display: inline-block;
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    padding: 4px 11px;
    border-radius: 5px;
    text-decoration: none;
}
.badge--sm { font-size: .62rem; padding: 3px 8px }

/* ===== Arrow Button ===== */
.btn-arrow {
    display: inline-block;
    margin-top: .4rem;
    font-size: .82rem;
    font-weight: 600;
    color: var(--clr-accent);
    text-decoration: none;
    transition: letter-spacing var(--ease);
}
.btn-arrow:hover { letter-spacing: .5px }

/* ===== Tiles Grid ===== */
.tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.6rem;
}

.tile {
    background: var(--bg-raised);
    border: 1px solid var(--border-clr);
    border-radius: var(--rds);
    overflow: hidden;
    transition: border-color var(--ease), transform var(--ease);
}
.tile:hover {
    border-color: var(--clr-faint);
    transform: translateY(-3px);
}

.tile__figure { overflow: hidden }
.tile__figure a { display: block }
.tile__figure img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform .45s ease;
}
.tile:hover .tile__figure img { transform: scale(1.05) }

.tile__body {
    padding: 1.25rem 1.3rem 1.5rem;
}
.tile__topline {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: .65rem;
    flex-wrap: wrap;
}
.tile__topline time {
    font-size: .7rem;
    color: var(--clr-faint);
    text-transform: uppercase;
    letter-spacing: .4px;
}
.tile__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: .5rem;
    letter-spacing: -.2px;
}
.tile__title a {
    text-decoration: none;
    transition: color var(--ease);
}
.tile__title a:hover { color: var(--clr-accent) }
.tile__excerpt {
    font-size: .84rem;
    color: var(--clr-dim);
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== Section heading (category page) ===== */
.section-heading {
    text-align: center;
    margin-bottom: 2.5rem;
}
.section-heading__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -.4px;
    color: var(--clr-accent);
}
.section-heading__sub {
    font-size: .85rem;
    color: var(--clr-faint);
    margin-top: .3rem;
}

/* ===== Single article ===== */
.single__container {
    max-width: 780px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}
.single__cover {
    border-radius: var(--rds);
    overflow: hidden;
    margin-bottom: 2rem;
    border: 1px solid var(--border-clr);
}
.single__cover img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}
.single__header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-clr);
}
.single__meta {
    display: flex;
    align-items: center;
    gap: .7rem;
    margin-bottom: .8rem;
    flex-wrap: wrap;
}
.single__meta time {
    font-size: .75rem;
    color: var(--clr-faint);
    text-transform: uppercase;
    letter-spacing: .4px;
}
.single__title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.1rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -.5px;
    color: #fff;
    margin-bottom: .8rem;
}
.single__lead {
    font-size: 1.1rem;
    color: var(--clr-dim);
    line-height: 1.7;
}

.single__body.prose {
    font-size: 1.02rem;
    line-height: 1.8;
    color: var(--clr-text);
}
.prose p { margin-bottom: 1.4rem }
.prose strong { color: #fff }
.prose h2, .prose h3 {
    font-family: 'Space Grotesk', sans-serif;
    color: #fff;
    margin: 2.2rem 0 .8rem;
}
.prose h2 { font-size: 1.45rem }
.prose h3 { font-size: 1.2rem }
.prose img {
    border-radius: 8px;
    margin: 1.5rem 0;
}
.prose blockquote {
    border-left: 3px solid var(--clr-accent);
    padding: .8rem 1.2rem;
    margin: 1.5rem 0;
    background: var(--clr-accent-glow);
    border-radius: 0 6px 6px 0;
    color: var(--clr-dim);
    font-style: italic;
}
.prose a {
    color: var(--clr-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.prose ul, .prose ol {
    padding-left: 1.4rem;
    margin-bottom: 1.2rem;
}
.prose li { margin-bottom: .35rem }

.single__footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-clr);
}

/* ===== Outline Button ===== */
.btn-outline {
    display: inline-block;
    padding: .65rem 1.4rem;
    font-size: .82rem;
    font-weight: 600;
    color: var(--clr-accent);
    border: 1.5px solid var(--clr-accent);
    border-radius: 6px;
    text-decoration: none;
    transition: background var(--ease), color var(--ease);
}
.btn-outline:hover {
    background: var(--clr-accent);
    color: var(--bg-primary);
}

/* ===== Notice (empty state) ===== */
.notice {
    text-align: center;
    padding: 4rem 1rem;
}
.notice__text {
    color: var(--clr-faint);
    font-size: 1rem;
}

/* ===== 404 page ===== */
.error-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1.5rem;
}
.error-page__box { text-align: center }
.error-page__code {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 7rem;
    font-weight: 700;
    line-height: 1;
    color: var(--clr-faint);
    margin-bottom: .5rem;
}
.error-page__heading {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: .5rem;
}
.error-page__text {
    color: var(--clr-dim);
    margin-bottom: 1.8rem;
    font-size: .95rem;
}

/* ===== Footer ===== */
.site-footer {
    border-top: 1px solid var(--border-clr);
    margin-top: auto;
    padding: 2.5rem 1.5rem;
}
.site-footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}
.site-footer__copy {
    font-size: .82rem;
    color: var(--clr-dim);
    font-weight: 600;
}
.site-footer__desc {
    font-size: .75rem;
    color: var(--clr-faint);
    margin-top: .3rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .tiles { grid-template-columns: repeat(2, 1fr) }
    .spotlight { grid-template-columns: 1fr }
    .spotlight__media img { min-height: 240px; height: 240px }
    .spotlight__info { padding: 1.8rem 1.6rem }
    .spotlight__heading { font-size: 1.35rem }
}

@media (max-width: 640px) {
    .topbar__inner { flex-direction: column; align-items: flex-start }
    .topbar__nav { gap: .15rem }
    .topbar__nav li a { font-size: .7rem; padding: .35rem .6rem }

    .hero-banner { padding: 3rem 1rem 2.5rem }
    .hero-banner__title { font-size: 1.8rem }

    .tiles { grid-template-columns: 1fr }
    .tile__figure img { height: 180px }

    .feed__container { padding: 1.5rem 1rem 2rem }

    .single__container { padding: 1.5rem 1rem 3rem }
    .single__title { font-size: 1.5rem }
    .single__cover { border-radius: 8px }
}