/* ==========================================================================
   STEN.UK — Master Stylesheet
   Theme: Newsprint (default)
   To retheme the entire site, edit the :root variables below.
   Font stack, spacing, layout, components — all driven from these tokens.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@700;900&family=Saira+Condensed:wght@400;700&family=Lora:ital,wght@0,400;0,600;1,400&display=swap');

/* --------------------------------------------------------------------------
   DESIGN TOKENS — edit here to retheme everything
   -------------------------------------------------------------------------- */
:root {
  /* Colour palette */
  --color-bg:           #f4f0e6;   /* page background */
  --color-surface:      #ede9dd;   /* cards, sidebar bg */
  --color-ink:          #1a1a1a;   /* primary text */
  --color-ink-muted:    #6b6456;   /* secondary text, meta */
  --color-rule:         #1a1a1a;   /* borders, rules */
  --color-rule-light:   #d4cfc3;   /* subtle dividers */
  --color-accent:       #c0392b;   /* red — S, E initials, links, CTAs */
  --color-accent-dark:  #96221a;   /* hover state for accent */
  --color-nav-bg:       #1a1a1a;   /* top nav bar */
  --color-nav-fg:       #f4f0e6;   /* nav text */
  --color-nav-accent:   #c0392b;   /* nav active/hover */
  --color-footer-bg:    #1a1a1a;
  --color-footer-fg:    #6b6456;

  /* Typography */
  --font-display:       'Barlow Condensed', sans-serif;
  --font-ui:            'Saira Condensed', sans-serif;
  --font-body:          'Lora', Georgia, serif;

  /* Logo sizing */
  --logo-initial-size:  72px;
  --logo-word-size:     13px;
  --logo-word-spacing:  4px;
  --logo-border-top:    4px;

  /* Nav icon sizing */
  --nav-icon-size:      22px;

  /* Spacing scale */
  --space-xs:   4px;
  --space-sm:   8px;
  --space-md:   16px;
  --space-lg:   32px;
  --space-xl:   64px;

  /* Layout */
  --max-width:          1100px;
  --content-width:      720px;
  --nav-height:         56px;

  /* Misc */
  --radius:             0px;      /* set to e.g. 6px for rounded corners */
  --transition:         0.18s ease;
}


/* --------------------------------------------------------------------------
   RESET & BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

ul, ol {
  padding-left: var(--space-lg);
}

hr {
  border: none;
  border-top: 1px solid var(--color-rule-light);
  margin: var(--space-lg) 0;
}

/* --------------------------------------------------------------------------
   TYPOGRAPHY UTILITIES
   -------------------------------------------------------------------------- */
.font-display { font-family: var(--font-display); }
.font-ui      { font-family: var(--font-ui); }
.font-body    { font-family: var(--font-body); }

.text-accent  { color: var(--color-accent); }
.text-muted   { color: var(--color-ink-muted); }
.text-sm      { font-size: 0.85rem; }
.text-xs      { font-size: 0.75rem; }

/* --------------------------------------------------------------------------
   STEN WORDMARK COMPONENT
   Used on the homepage hero. Driven by CSS variables.
   -------------------------------------------------------------------------- */
.sten-wordmark {
  display: inline-flex;
  flex-direction: column;
  font-family: var(--font-display);
  border-top: var(--logo-border-top) solid var(--color-rule);
  background: transparent;
}

.sten-wordmark__row {
  display: flex;
  align-items: baseline;
  line-height: 1;
  border-bottom: 1.5px solid var(--color-rule);
}

.sten-wordmark__row:first-child {
  border-top: 1.5px solid var(--color-rule);
}

.sten-wordmark__initial {
  font-size: var(--logo-initial-size);
  font-weight: 900;
  line-height: 0.9;
  color: var(--color-ink);
  min-width: calc(var(--logo-initial-size) * 0.72);
  display: inline-block;
}

.sten-wordmark__row--accent .sten-wordmark__initial {
  color: var(--color-accent);
}

.sten-wordmark__rest {
  font-family: var(--font-ui);
  font-size: var(--logo-word-size);
  font-weight: 700;
  letter-spacing: var(--logo-word-spacing);
  color: var(--color-ink-muted);
  text-transform: uppercase;
  padding-bottom: 4px;
  align-self: flex-end;
  padding-left: 4px;
}

.sten-wordmark__tagline {
  font-family: var(--font-ui);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sten-wordmark__tagline::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--color-accent);
  flex-shrink: 0;
}


/* --------------------------------------------------------------------------
   STEN ICON MARK COMPONENT
   Used in nav bar + favicon reference. 2×2 grid ST/EN.
   -------------------------------------------------------------------------- */
.sten-icon {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  border-top: 3px solid var(--color-nav-fg);
  flex-shrink: 0;
}

.sten-icon__letter {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--nav-icon-size);
  line-height: 1;
  color: var(--color-nav-fg);
  display: flex;
  align-items: center;
  justify-content: center;
  width: calc(var(--nav-icon-size) * 1.15);
  height: calc(var(--nav-icon-size) * 1.1);
}

.sten-icon__letter--S,
.sten-icon__letter--N {
  color: var(--color-nav-accent);
}

.sten-icon__letter--S { border-right: 1.5px solid var(--color-nav-fg); border-bottom: 1.5px solid var(--color-nav-fg); }
.sten-icon__letter--T { border-bottom: 1.5px solid var(--color-nav-fg); }
.sten-icon__letter--E { border-right: 1.5px solid var(--color-nav-fg); }


/* --------------------------------------------------------------------------
   TOP NAVIGATION
   -------------------------------------------------------------------------- */
.site-nav {
  background: var(--color-nav-bg);
  height: var(--nav-height);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 2px solid var(--color-accent);
}

.site-nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

/* Brand / icon in nav */
.site-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  flex-shrink: 0;
}

.site-nav__site-name {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--color-ink-muted);
  text-transform: uppercase;
}

/* Nav links */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  padding: 0;
  height: 100%;
}

.site-nav__links li {
  height: 100%;
  position: relative;
}

.site-nav__links a,
.site-nav__links button {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--space-md);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-nav-fg);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
  gap: 6px;
}

.site-nav__links a:hover,
.site-nav__links button:hover {
  color: var(--color-nav-accent);
  text-decoration: none;
  background: rgba(255,255,255,0.05);
}

/* Dropdown arrow indicator */
.site-nav__links button::after {
  content: '▾';
  font-size: 10px;
  opacity: 0.6;
}

/* Dropdown menu */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-nav-bg);
  border-top: 2px solid var(--color-accent);
  min-width: 180px;
  display: none;
  flex-direction: column;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.nav-dropdown.open {
  display: flex;
}

.nav-dropdown a {
  display: block;
  height: auto;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-nav-fg);
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown a:last-child {
  border-bottom: none;
}

.nav-dropdown a:hover {
  background: rgba(255,255,255,0.07);
  color: var(--color-nav-accent);
  text-decoration: none;
}

/* Hamburger toggle (mobile) */
.site-nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.site-nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-nav-fg);
  transition: transform var(--transition), opacity var(--transition);
}


/* --------------------------------------------------------------------------
   HERO (homepage)
   -------------------------------------------------------------------------- */
.site-hero {
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-rule);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.site-hero__tagline {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  max-width: 560px;
  line-height: 1.7;
}

.site-hero__tagline strong {
  color: var(--color-accent);
}


/* --------------------------------------------------------------------------
   PAGE LAYOUT
   -------------------------------------------------------------------------- */
.site-main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  padding: var(--space-xl) var(--space-lg);
}

/* Two-column layout for blog listing */
.layout-blog {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-xl);
  align-items: start;
}

/* Single-column for article/project pages */
.layout-single {
  max-width: var(--content-width);
  margin: 0 auto;
}


/* --------------------------------------------------------------------------
   BLOG POST CARDS (homepage listing)
   -------------------------------------------------------------------------- */
.post-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.post-card {
  border-top: 3px solid var(--color-rule);
  padding-top: var(--space-md);
}

.post-card__meta {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.post-card__meta .tag {
  background: var(--color-accent);
  color: #fff;
  padding: 2px 8px;
  font-size: 10px;
  letter-spacing: 2px;
}

.post-card__title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-ink);
  margin-bottom: var(--space-sm);
}

.post-card__title a {
  color: inherit;
  text-decoration: none;
}

.post-card__title a:hover {
  color: var(--color-accent);
}

.post-card__excerpt {
  font-size: 0.95rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.post-card__readmore {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.post-card__readmore:hover {
  color: var(--color-accent-dark);
  text-decoration: none;
}

.post-card__readmore::after {
  content: '→';
}


/* --------------------------------------------------------------------------
   SIDEBAR
   -------------------------------------------------------------------------- */
.sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-lg));
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.sidebar-widget {
  border-top: 3px solid var(--color-rule);
  padding-top: var(--space-md);
}

.sidebar-widget__title {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-md);
}

.sidebar-widget__body {
  font-size: 0.9rem;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

.sidebar-widget__body p + p {
  margin-top: var(--space-sm);
}

.sidebar-links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.sidebar-links li {
  border-bottom: 1px solid var(--color-rule-light);
  padding-bottom: var(--space-xs);
}

.sidebar-links a {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-ink);
  text-decoration: none;
}

.sidebar-links a:hover {
  color: var(--color-accent);
}


/* --------------------------------------------------------------------------
   ARTICLE / PROJECT PAGE
   -------------------------------------------------------------------------- */
.article-header {
  border-top: 4px solid var(--color-rule);
  padding-top: var(--space-md);
  margin-bottom: var(--space-xl);
}

.article-header__tag {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #fff;
  background: var(--color-accent);
  display: inline-block;
  padding: 3px 10px;
  margin-bottom: var(--space-md);
}

.article-header__title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.05;
  color: var(--color-ink);
  margin-bottom: var(--space-md);
}

.article-header__meta {
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-rule-light);
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-ink);
}

.article-body p {
  margin-bottom: var(--space-md);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-ink);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  border-top: 2px solid var(--color-rule-light);
  padding-top: var(--space-md);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  color: var(--color-ink);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.article-body ul,
.article-body ol {
  margin-bottom: var(--space-md);
}

.article-body li {
  margin-bottom: var(--space-xs);
}

.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  color: var(--color-ink-muted);
  font-style: italic;
}

.article-body strong {
  color: var(--color-ink);
  font-weight: 600;
}

/* Callout box */
.callout {
  background: var(--color-surface);
  border-left: 4px solid var(--color-accent);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
}

.callout p {
  margin: 0;
  font-size: 0.95rem;
}


/* --------------------------------------------------------------------------
   STATUS BADGE (project pages)
   -------------------------------------------------------------------------- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 4px 12px;
  background: var(--color-surface);
  border: 1.5px solid var(--color-rule-light);
  color: var(--color-ink-muted);
}

.status-badge--active {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.status-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}


/* --------------------------------------------------------------------------
   CONTACT PAGE
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info p {
  margin-bottom: var(--space-md);
  color: var(--color-ink-muted);
}

.contact-info a {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 2px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--color-bg);
  border: 1.5px solid var(--color-rule-light);
  border-top: 2px solid var(--color-rule);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink);
  width: 100%;
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 140px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-accent);
  color: #fff;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition);
}

.btn:hover {
  background: var(--color-accent-dark);
  color: #fff;
  text-decoration: none;
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: #fff;
}


/* --------------------------------------------------------------------------
   PAGE HEADER (interior pages)
   -------------------------------------------------------------------------- */
.page-header {
  background: var(--color-surface);
  border-bottom: 3px solid var(--color-rule);
  padding: var(--space-lg) var(--space-lg);
}

.page-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-header__label {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-sm);
}

.page-header__label::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 2px;
  background: var(--color-accent);
  margin-right: var(--space-sm);
  vertical-align: middle;
}

.page-header__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 900;
  color: var(--color-ink);
  line-height: 1.05;
}


/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-footer-bg);
  border-top: 3px solid var(--color-rule);
  padding: var(--space-lg) var(--space-lg);
  margin-top: auto;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-footer__copy {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-footer-fg);
}

.site-footer__links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  padding: 0;
}

.site-footer__links a {
  font-family: var(--font-ui);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-footer-fg);
  text-decoration: none;
  transition: color var(--transition);
}

.site-footer__links a:hover {
  color: var(--color-nav-accent);
  text-decoration: none;
}


/* --------------------------------------------------------------------------
   COOKIES / INFO PAGE
   -------------------------------------------------------------------------- */
.cookies-hero {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border-bottom: 3px solid var(--color-rule);
  background: var(--color-surface);
}

.cookies-hero__icon {
  font-size: 64px;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.cookies-hero__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 900;
  color: var(--color-ink);
  margin-bottom: var(--space-md);
  line-height: 1;
}

.cookies-hero__sub {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}


/* --------------------------------------------------------------------------
   RESPONSIVE — MOBILE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {

  :root {
    --logo-initial-size: 52px;
    --space-xl: 40px;
  }

  .layout-blog {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

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

  .site-nav__links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-nav-bg);
    border-bottom: 2px solid var(--color-accent);
    z-index: 99;
    height: auto;
  }

  .site-nav__links.mobile-open {
    display: flex;
  }

  .site-nav__links li {
    height: auto;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    width: 100%;
  }

  .site-nav__links a,
  .site-nav__links button {
    height: auto;
    padding: var(--space-md);
    width: 100%;
    justify-content: flex-start;
  }

  .site-nav__hamburger {
    display: flex;
  }

  .site-nav {
    position: relative;
  }

  .nav-dropdown {
    position: static;
    box-shadow: none;
    border-top: none;
    border-left: 3px solid var(--color-accent);
    margin-left: var(--space-lg);
  }

  .nav-dropdown a {
    padding-left: var(--space-lg);
  }

  .site-main {
    padding: var(--space-lg) var(--space-md);
  }
}