/**
 * Copyright (c) 2026 SEVEN TWENTY DEGREES (Pty) Ltd
 * Registration No: 2023/212025/07
 * All rights reserved.
 *
 * This software is the proprietary and confidential information of
 * SEVEN TWENTY DEGREES (Pty) Ltd. Unauthorized
 * copying, modification, distribution, or use is strictly prohibited.
 */

/* =========================================================================
   LAYOUT — page shell, container, header, footer, nav, generic grids.
   ========================================================================= */

.container {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

/* ---- Site header ----------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-paper) 92%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-rule);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--color-ink); }
.brand__mark {
  font-size: 1.5rem;
  color: var(--color-primary);
  font-feature-settings: "ss01";
}
.brand__word {
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: var(--font-sans);
  font-weight: var(--fw-medium);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: var(--space-5);
  padding: 0;
  margin: 0;
  align-items: center;
}

.nav-list a {
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: var(--fw-medium);
  padding: 0.4rem 0;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-quick) var(--ease-out), border-color var(--dur-quick) var(--ease-out);
}
.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.nav-list a.nav-cta {
  background: var(--color-ink);
  color: var(--color-paper);
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  border-bottom: 0;
}
.nav-list a.nav-cta:hover {
  background: var(--color-primary);
  color: var(--color-paper);
}

.nav-toggle {
  display: none;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--fs-xs);
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  background: var(--color-paper);
  color: var(--color-ink);
}

@media (max-width: 780px) {
  .nav-toggle { display: inline-flex; }
  .nav-list {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-rule);
    flex-direction: column;
    gap: 0;
    padding: var(--space-3) var(--gutter) var(--space-5);
    display: none;
  }
  .nav-list[data-open="true"] { display: flex; }
  .nav-list li { width: 100%; }
  .nav-list a {
    display: block;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--color-rule-soft);
    width: 100%;
  }
  .nav-list a.nav-cta {
    margin-top: var(--space-3);
    text-align: center;
  }
}

/* ---- Site footer ----------------------------------------------------- */

.site-footer {
  background: var(--color-ink);
  color: var(--color-paper);
  margin-top: var(--space-9);
  padding-block: var(--space-8) var(--space-6);
}
.site-footer a { color: var(--color-paper); }
.site-footer a:hover { color: var(--color-accent); }

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6) var(--space-7);
  margin-bottom: var(--space-7);
}

.site-footer__col h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  font-weight: var(--fw-semibold);
}

.site-footer__col ul {
  list-style: none;
  padding: 0;
}
.site-footer__col li { margin-top: var(--space-2); }
.site-footer__col li:first-child { margin-top: 0; }
.site-footer__col p {
  font-size: var(--fs-sm);
  color: color-mix(in srgb, var(--color-paper) 80%, transparent);
}

.site-footer__inline-form {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.site-footer__inline-form input[type="email"] {
  flex: 1;
  min-width: 0;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid color-mix(in srgb, var(--color-paper) 30%, transparent);
  background: color-mix(in srgb, var(--color-paper) 8%, transparent);
  color: var(--color-paper);
  font-size: var(--fs-sm);
}
.site-footer__inline-form input[type="email"]::placeholder {
  color: color-mix(in srgb, var(--color-paper) 55%, transparent);
}
.site-footer__inline-form button {
  padding: 0.6rem 1rem;
  background: var(--color-accent);
  color: var(--color-ink);
  border-radius: var(--radius-md);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
}

.site-footer__baseline {
  border-top: 1px solid color-mix(in srgb, var(--color-paper) 18%, transparent);
  padding-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: color-mix(in srgb, var(--color-paper) 70%, transparent);
}

/* ---- Generic grids & sections --------------------------------------- */

.section {
  padding-block: var(--space-8);
}
.section--tight { padding-block: var(--space-6); }
.section--alt {
  background: var(--color-paper-alt);
}
.section--dark {
  background: var(--color-ink);
  color: var(--color-paper);
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: var(--color-paper); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-rule);
}
.section-head h2 {
  margin: 0;
  font-size: var(--fs-xl);
}
.section-head__link {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--color-ink);
}
.section-head__link:hover { color: var(--color-primary); }

.grid {
  display: grid;
  gap: var(--space-6);
}
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--articles {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Two-column page layout used on /news for stream + rail */
.layout-news {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-7);
}
@media (min-width: 960px) {
  .layout-news {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}

/* Article-page layout: single column centered within read-width */
.layout-article {
  max-width: var(--measure-article);
  margin-inline: auto;
}

/* Product page: hero + content */
.layout-product {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 820px) {
  .layout-product {
    grid-template-columns: 1.1fr 1fr;
    align-items: start;
  }
}