/*
Theme Name: Biome
Theme URI: https://example.com/biome
Author: Your Name
Author URI: https://example.com
Description: A bold science and environment news theme with heavy condensed headlines, an evidence-rating meter on stories, a dense latest-news grid and per-topic colour coding. Light and dark modes, self-hosted fonts and one-click demo content with original artwork.
Version: 1.0.0
Requires at least: 6.4
Tested up to: 7.1
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: biome
Tags: blog, news, two-columns, right-sidebar, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, full-width-template
*/

:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --text: #0c1826;
  --text-2: #37475a;
  --muted: #64748b;
  --line: #dde6ef;
  --accent: #1f6bff;
  --accent-ink: #ffffff;
  --accent-hover: #0c1826;
  --accent-hover-ink: #ffffff;

  --font-display: "Saira Condensed", "Arial Narrow", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-ui: "Saira", system-ui, -apple-system, sans-serif;
  --w-display: 800;
  --lh-display: 0.98;
  --track-display: -0.01em;

  --radius: 4px;
  --radius-ui: 4px;
  --footer-bg: #0a1420;
  --footer-text: #eef3f8;
  --footer-muted: #94a5b8;
  --footer-line: rgba(255,255,255,.12);
  --overlay: linear-gradient(180deg, rgba(6,14,24,0) 26%, rgba(6,14,24,.92) 100%);
}
:root[data-theme="dark"] {
  --bg: #080f18;
  --surface: #0f1826;
  --surface-2: #152133;
  --text: #eef3f9;
  --text-2: #c2cedd;
  --muted: #8495a8;
  --line: #20304a;
  --accent: #4d8bff;
  --accent-ink: #061018;
  --accent-hover: #eef3f9;
  --accent-hover-ink: #080f18;
  --footer-bg: #050a12;
}

body { font-size: 17px; }
.btn, .icon-btn, .meta, .cat, .primary-menu a, .mobile-menu a, .section-link, .widget-title { font-family: var(--font-ui); }
.brand__name { font-family: var(--font-display); font-weight: 800; font-size: 1.7rem; text-transform: uppercase; letter-spacing: 0; }
h1, h2, h3, h4, .card__title, .mini__title, .entry-title, .section-title, .bm-bigcard__title { font-family: var(--font-display); text-transform: uppercase; font-weight: 800; letter-spacing: -.005em; }
.card__title { line-height: 1.02; }

.site-header { border-bottom: 2px solid var(--text); }
.primary-menu > li > a { text-transform: uppercase; font-weight: 700; font-size: .85rem; letter-spacing: .02em; }
.cat { background: hsl(var(--cat-hue,205) 70% 46%); color: #fff; padding: .18rem .5rem; border-radius: 2px; letter-spacing: .04em; }
[data-theme="dark"] .cat { color: #fff; }
.section-title { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
.section-head { border-bottom: 3px solid var(--text); padding-bottom: .6rem; }

/* ---------- Hero trio ---------- */
.bm-hero { padding-top: 1.25rem; }
.bm-hero__grid { display: grid; gap: 4px; grid-template-columns: 1.4fr 1fr 1fr; }
.bm-hero .card-overlay { min-height: 440px; border-radius: 0; }
.bm-hero .card-overlay:first-child .card__title { font-size: clamp(1.6rem, 2.6vw, 2.4rem); }
.bm-hero .card__title { font-size: 1.5rem; }
@media (max-width: 860px) { .bm-hero__grid { grid-template-columns: 1fr; } .bm-hero .card-overlay { min-height: 300px; } }

/* ---------- Featured ---------- */
.bm-eyebrow { display: inline-block; background: var(--text); color: var(--bg); font-family: var(--font-ui); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .72rem; padding: .3rem .7rem; margin-bottom: 1.2rem; }
.bm-featured__grid { display: grid; gap: 28px; grid-template-columns: 1.5fr 1fr; }
.bm-bigcard__media { margin-bottom: 1rem; }
.bm-bigcard__media .media { aspect-ratio: 16/9; }
.bm-bigcard__title { font-size: clamp(1.8rem, 3.4vw, 2.6rem); margin-block: .3rem .5rem; line-height: 1; }
.bm-bigcard__title a:hover { color: var(--accent); }
.bm-bigcard__excerpt { color: var(--text-2); font-family: var(--font-body); margin-bottom: 1rem; }
.bm-featured__side { display: grid; gap: 20px; align-content: start; }
.bm-featured__side .card { display: grid; grid-template-columns: 130px 1fr; gap: 14px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.bm-featured__side .card:last-child { border-bottom: 0; }
.bm-featured__side .card .media { aspect-ratio: 1; }
.bm-featured__side .card__title { font-size: 1.15rem; }
@media (max-width: 860px) { .bm-featured__grid { grid-template-columns: 1fr; } }

/* ---------- Score meter ---------- */
.bm-meter { display: flex; align-items: center; gap: .6rem; font-family: var(--font-ui); font-size: .78rem; font-weight: 600; margin-top: .5rem; flex-wrap: wrap; }
.bm-meter__track { flex: 1; min-width: 80px; height: 7px; background: var(--surface-2); border-radius: 100px; overflow: hidden; }
.bm-meter__fill { display: block; height: 100%; border-radius: 100px; background: linear-gradient(90deg, #e05a2b, #e8b53a 45%, #3aa84a); }
.bm-meter__val { font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; }
.bm-meter__val small { color: var(--muted); font-weight: 600; }
.bm-meter__label { color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.bm-meter--big { font-size: .95rem; margin-block: 0 1.4rem; padding: 1rem 1.2rem; background: var(--surface-2); border-radius: var(--radius); }
.bm-meter--big .bm-meter__track { height: 10px; }
.bm-single-meter { max-width: 760px; margin: 0 auto; }

/* ---------- Newsletter strip ---------- */
.bm-signup-strip { background: var(--accent); color: #fff; padding-block: 2rem; }
.signup--strip { display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: center; }
.signup--strip .signup__title { color: #fff; font-family: var(--font-display); text-transform: uppercase; font-size: 1.6rem; }
.signup--strip .signup__desc { color: rgba(255,255,255,.9); }
.signup--strip .signup__form { flex-wrap: nowrap; min-width: 340px; }
.signup--strip .signup__button { background: #fff; color: var(--accent); }
.signup--strip .signup__note { color: rgba(255,255,255,.75); }
@media (max-width: 760px) { .signup--strip { grid-template-columns: 1fr; } .signup--strip .signup__form { min-width: 0; } }

/* ---------- Latest grid ---------- */
.bm-grid .card .media { aspect-ratio: 16/10; }
.bm-grid .card__title { font-size: 1.2rem; }

/* single */
.entry-content { font-family: var(--font-body); }
.widget-title { font-family: var(--font-ui); text-transform: uppercase; letter-spacing: .04em; border-bottom-width: 3px; }