/* ============================================================
   FOOD DESERT — main.css
   Aesthetic: editorial data-journalism, confrontational minimal
   ============================================================ */

/* --- TOKENS --- */
:root {
  --bg:          #0e0e0e;
  --bg-raised:   #161616;
  --bg-card:     #1c1c1c;
  --border:      #2a2a2a;
  --border-mid:  #333;
  --text:        #e8e4dc;
  --text-muted:  #7a7570;
  --text-dim:    #4a4642;
  --accent:      #d4522a;
  --accent-warm: #e8874a;
  --accent-pale: #3a1e12;
  --green:       #4a8c5c;
  --green-pale:  #1a2e20;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --max-w: 1160px;
  --gutter: clamp(1.5rem, 5vw, 4rem);
}

/* --- RESET --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* --- GRAIN OVERLAY --- */
.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 100;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  animation: grain 0.5s steps(1) infinite;
}
@keyframes grain {
  0%,100%{transform:translate(0,0)}10%{transform:translate(-2%,-3%)}20%{transform:translate(3%,1%)}30%{transform:translate(-1%,3%)}40%{transform:translate(3%,-2%)}50%{transform:translate(-3%,1%)}60%{transform:translate(2%,3%)}70%{transform:translate(-2%,-2%)}80%{transform:translate(3%,2%)}90%{transform:translate(-1%,-3%)}
}

/* --- HEADER --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(14,14,14,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.wordmark {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}
.wordmark-accent { color: var(--accent); }
.header-nav {
  display: flex;
  gap: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.header-nav a:hover { color: var(--text); transition: color 0.2s; }

/* --- HERO --- */
.hero {
  min-height: 100svh;
  padding: calc(56px + 5rem) var(--gutter) 5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2.5rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 56px; right: -10%; bottom: 0;
  width: 45%;
  background: radial-gradient(ellipse at 70% 40%, rgba(212,82,42,0.08) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  animation: fade-up 0.6s ease both;
}
.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.8)}
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--text);
  animation: fade-up 0.6s 0.1s ease both;
}
.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-subhead {
  max-width: 520px;
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  animation: fade-up 0.6s 0.2s ease both;
}

/* --- POSTCODE FORM --- */
.postcode-form {
  animation: fade-up 0.6s 0.3s ease both;
}
.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.form-row {
  display: flex;
  gap: 0;
  max-width: 420px;
}
.form-row input {
  flex: 1;
  background: var(--bg-raised);
  border: 1px solid var(--border-mid);
  border-right: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  padding: 0.85rem 1.2rem;
  outline: none;
  transition: border-color 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 3px 0 0 3px;
}
.form-row input::placeholder { color: var(--text-dim); }
.form-row input:focus { border-color: var(--accent); }
.form-row button {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.85rem 1.5rem;
  cursor: pointer;
  border-radius: 0 3px 3px 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.2s;
  white-space: nowrap;
}
.form-row button:hover { background: var(--accent-warm); }
.btn-arrow { font-size: 1.1rem; }
.form-note {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

/* --- HERO STATS --- */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  max-width: 520px;
  animation: fade-up 0.6s 0.4s ease both;
}
.stat { display: flex; flex-direction: column; gap: 0.15rem; }
.stat-number {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}
.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.3;
}
.stat-divider {
  width: 1px;
  height: 2.5rem;
  background: var(--border);
}

/* --- ANIMATIONS --- */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- EXPLAINER STRIP --- */
.explainer {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
  padding: 3.5rem var(--gutter);
}
.explainer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.explainer-pull {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-style: italic;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  max-width: 780px;
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
}
.explainer-pull em { color: var(--accent); font-style: normal; }

/* --- SHARED SECTION STYLES --- */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 5rem var(--gutter);
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 3rem;
}

/* --- HOW IT WORKS --- */
.how-it-works { border-top: 1px solid var(--border); }
.signals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.signal {
  padding: 2rem;
  border-right: 1px solid var(--border);
  transition: background 0.2s;
}
.signal:last-child { border-right: none; }
.signal:hover { background: var(--bg-raised); }
.signal-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.signal h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}
.signal p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.data-sources {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.sources-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.source-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border-mid);
  color: var(--text-muted);
  border-radius: 2px;
  transition: border-color 0.2s, color 0.2s;
}
.source-tag:hover { border-color: var(--accent); color: var(--text); }

/* --- FINDINGS --- */
.findings {
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.findings-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 1.5rem;
}
.finding {
  background: var(--bg-raised);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.finding--large { padding: 2.5rem; }
.finding-stat {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.finding-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.findings-caveat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}
.findings-caveat a { color: var(--text-muted); border-bottom: 1px solid var(--border-mid); }
.findings-caveat a:hover { color: var(--text); }

/* --- ABOUT --- */
.about { border-top: 1px solid var(--border); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 4rem;
  align-items: start;
}
.about-text { display: flex; flex-direction: column; gap: 1rem; }
.about-text p { color: var(--text-muted); max-width: 480px; }
.cta-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  border-bottom: 1px solid var(--accent-pale);
  padding-bottom: 2px;
  margin-top: 0.5rem;
  transition: border-color 0.2s;
}
.cta-link:hover { border-color: var(--accent); }

.aside-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.75rem;
}
.aside-card-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
}
.stack-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.stack-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.stack-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  background: var(--accent-pale);
  color: var(--accent-warm);
  border-radius: 2px;
  white-space: nowrap;
}

/* --- FOOTER --- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem var(--gutter);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-wordmark {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}
.footer-wordmark span { color: var(--accent); }
.footer-links {
  display: flex;
  gap: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.footer-links a:hover { color: var(--text-muted); }
.footer-legal {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--text-dim);
  max-width: 400px;
  text-align: right;
  line-height: 1.5;
}

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
  .findings-grid { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-legal { margin-left: 0; text-align: left; }
}
@media (max-width: 600px) {
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .stat-divider { display: none; }
  .signals-grid { grid-template-columns: 1fr; }
  .signal { border-right: none; border-bottom: 1px solid var(--border); }
  .signal:last-child { border-bottom: none; }
  .header-nav { display: none; }
}