/* ═══════════════════════════════════════════════════════════════════════════
   The Distribution Brief — Design System
   Institutional Intelligence for Chemical Distribution
   Style: Bloomberg / Financial Times Authority
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Custom Properties ──────────────────────────────────────────────────── */
:root {
  --bg: #F9F7F2;
  --fg: #001F3F;
  --accent: #FF4500;
  --muted: #4A6580;
  --border: #D6D1C4;
  --secondary-bg: #EDEAE3;
  --green: #2d6a4f;
  --red: #c0392b;
  --surface-navy: #001F3F;
  --surface-navy-fg: #F9F7F2;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'Roboto Mono', monospace;
}

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

html {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* ── Layout ─────────────────────────────────────────────────────────────── */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Editorial Rules ────────────────────────────────────────────────────── */
.rule-thin {
  height: 1px;
  background: rgba(0, 31, 63, 0.2);
}

.rule-thick {
  height: 2px;
  background: var(--fg);
  flex: 1;
}

/* ── Section Header (flanked by rules) ──────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: 1.5rem;
  white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════════════════════════
   0. PRICE TICKER
   ═══════════════════════════════════════════════════════════════════════════ */
.ticker {
  background: var(--surface-navy);
  overflow: hidden;
  white-space: nowrap;
  border-bottom: 1px solid rgba(249, 247, 242, 0.08);
}

.ticker-track {
  display: inline-flex;
  animation: ticker-scroll 40s linear infinite;
  will-change: transform;
}

.ticker-track:hover {
  animation-play-state: paused;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--surface-navy-fg);
  border-right: 1px solid rgba(249, 247, 242, 0.08);
}

.ticker-label {
  color: rgba(249, 247, 242, 0.5);
  text-transform: uppercase;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
}

.ticker-value {
  font-weight: 500;
}

.ticker-change {
  font-size: 0.6rem;
}

.ticker-change--up {
  color: var(--green);
}

.ticker-change--down {
  color: var(--red);
}

.ticker-change--flat {
  color: rgba(249, 247, 242, 0.4);
}

.ticker-sep {
  padding: 0.5rem 0;
  color: rgba(249, 247, 242, 0.15);
  font-size: 0.5rem;
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   1. MASTHEAD
   ═══════════════════════════════════════════════════════════════════════════ */
.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
}

.masthead-rule {
  height: 1px;
  background: rgba(0, 31, 63, 0.25);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1120px;
  margin: 0 auto;
}

.masthead-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--fg);
}

.masthead-logo {
  height: 28px;
  width: auto;
}

.masthead-title {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.masthead-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.masthead-nav a {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.masthead-nav a:hover {
  color: var(--fg);
}

/* Hamburger */
.masthead-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.masthead-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg);
  transition: transform 0.2s, opacity 0.2s;
}

/* ── Form States (Signup) ──────────────────────────────────────────────── */

.footer-form.is-submitting button {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.form-message {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  text-align: center;
  max-width: 420px;
  margin: 0 auto;
  padding: 0;
  min-height: 1.5em;
  transition: opacity 0.3s ease;
}

.form-message:empty {
  opacity: 0;
}

.form-message--success {
  color: var(--green);
  opacity: 1;
  padding-top: 0.75rem;
}

.form-message--error {
  color: var(--red);
  opacity: 1;
  padding-top: 0.75rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   3. INTELLIGENCE GRID
   ═══════════════════════════════════════════════════════════════════════════ */
.intelligence {
  padding: 4rem 0;
}

.intel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.intel-card {
  border: 1px solid var(--border);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s;
}

.intel-card:hover {
  border-color: rgba(0, 31, 63, 0.4);
}

/* Status Badges */
.intel-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-block;
  padding: 0.25rem 0.5rem;
  margin-bottom: 1rem;
}

.intel-badge--confidence {
  background: rgba(0, 31, 63, 0.08);
  color: var(--fg);
  border: 1px solid rgba(0, 31, 63, 0.15);
}

.intel-badge--critical {
  background: rgba(255, 69, 0, 0.08);
  color: var(--accent);
  border: 1px solid rgba(255, 69, 0, 0.2);
}

.intel-badge--update {
  background: var(--secondary-bg);
  color: var(--muted);
  border: 1px solid var(--border);
}

.intel-card-icon {
  margin-bottom: 0.75rem;
  color: var(--fg);
}

.intel-card-icon.critical {
  color: var(--accent);
}

.intel-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.intel-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  flex: 1;
}

.intel-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--fg);
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  transition: color 0.2s;
}

.intel-card-link:hover {
  color: var(--muted);
}

.intel-card-link .arrow {
  transition: transform 0.2s;
}

.intel-card-link:hover .arrow {
  transform: translateX(3px);
}

/* ═══════════════════════════════════════════════════════════════════════════
   3b. TRADE POLICY FEED (GTA)
   ═══════════════════════════════════════════════════════════════════════════ */
.trade-alerts {
  padding: 4rem 0;
  background: var(--secondary-bg);
}

.trade-alerts-description {
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* ── Data Freshness Label ────────────────────────────────────────────────── */
.trade-alerts-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.03em;
  margin-bottom: 1.2rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border-left: 3px solid var(--accent);
  border-radius: 2px;
}

.trade-alerts-meta .meta-sources {
  color: var(--fg);
  font-weight: 500;
}

/* ── Filter Controls ─────────────────────────────────────────────────────── */
.trade-alerts-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.trade-alerts-filter-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.trade-alerts-filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

#type-filter-bar {
  border-left: 1px solid var(--border);
  padding-left: 1rem;
}

.trade-filter-btn {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
}

.trade-filter-btn:hover {
  border-color: var(--fg);
  color: var(--fg);
}

.trade-filter-btn.active {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.trade-alerts-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* ── Alert Feed ──────────────────────────────────────────────────────────── */
.trade-alerts-feed {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.alert-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: start;
  transition: border-color 0.25s;
}

.alert-card:hover {
  border-color: rgba(0, 31, 63, 0.4);
}

/* Evaluation Badge (left column) */
.alert-eval {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border: 1px solid;
  white-space: nowrap;
  margin-top: 0.15rem;
}

.alert-eval--red {
  color: var(--red);
  border-color: rgba(192, 57, 43, 0.25);
  background: rgba(192, 57, 43, 0.06);
}

.alert-eval--amber {
  color: #b8860b;
  border-color: rgba(184, 134, 11, 0.25);
  background: rgba(184, 134, 11, 0.06);
}

.alert-eval--green {
  color: var(--green);
  border-color: rgba(45, 106, 79, 0.25);
  background: rgba(45, 106, 79, 0.06);
}

/* Content (middle column) */
.alert-content {
  min-width: 0;
}

.alert-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 0.5rem;
  color: var(--fg);
}

a.alert-title-link {
  text-decoration: none;
  color: var(--fg);
  transition: color 0.15s ease;
  display: block;
}

a.alert-title-link:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.alert-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.alert-source {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.1rem 0.35rem;
  border-radius: 2px;
  white-space: nowrap;
}
.alert-source--gta {
  background: rgba(0, 31, 63, 0.08);
  color: var(--fg);
  border: 1px solid rgba(0, 31, 63, 0.15);
}
.alert-source--fr {
  background: rgba(45, 106, 79, 0.08);
  color: var(--green);
  border: 1px solid rgba(45, 106, 79, 0.2);
}

.alert-type-pill {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  background: rgba(0, 31, 63, 0.06);
  border: 1px solid rgba(0, 31, 63, 0.12);
  color: var(--fg);
  white-space: nowrap;
}

.alert-implementer {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--muted);
}

.alert-implementer strong {
  font-weight: 600;
  color: var(--fg);
}

.alert-hs-codes {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

/* Date + Status (right column) */
.alert-date-col {
  text-align: right;
  white-space: nowrap;
}

.alert-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.alert-status {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 0.3rem;
  display: inline-block;
}

.alert-status--active {
  color: var(--red);
}

.alert-status--inactive {
  color: var(--muted);
}

/* Load More Button */
.trade-alerts-load-more {
  display: block;
  width: 100%;
  margin-top: 1rem;
  padding: 0.75rem;
  background: transparent;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
}

.trade-alerts-load-more:hover {
  border-color: var(--fg);
  color: var(--fg);
}

/* ═══════════════════════════════════════════════════════════════════════════
   4. TDB COMPOSITE INDEX
   ═══════════════════════════════════════════════════════════════════════════ */
.tdb-index {
  padding: 4rem 0;
}

.tdb-index-description {
  font-size: 0.95rem;
  color: var(--fg);
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.tdb-index-stats {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.03em;
  margin-bottom: 2rem;
}

.tdb-index-card {
  background: white;
  border: 1px solid var(--border);
  padding: 2rem;
  margin-bottom: 1rem;
}

.tdb-index-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin-bottom: 1.25rem;
}

.tdb-index-select {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  background: white;
  color: var(--fg);
  cursor: pointer;
  outline: none;
  margin-bottom: 1.5rem;
  min-width: 200px;
}

.tdb-index-select:focus {
  border-color: var(--fg);
}

.chart-container {
  position: relative;
  height: 350px;
}

/* ═══════════════════════════════════════════════════════════════════════════
   5. PRODUCT OVERVIEW
   ═══════════════════════════════════════════════════════════════════════════ */
.products {
  padding: 4rem 0;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  background: white;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--fg);
  outline: none;
  margin-bottom: 1.5rem;
  transition: border-color 0.2s;
}

.search-input::placeholder {
  color: var(--muted);
}

.search-input:focus {
  border-color: var(--fg);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.product-card {
  border: 1px solid var(--border);
  padding: 1.25rem;
  transition: border-color 0.25s;
  cursor: default;
}

.product-card:hover {
  border-color: rgba(0, 31, 63, 0.4);
}

.product-card-name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.product-card-tci {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 500;
  display: inline;
  margin-right: 0.5rem;
}

.product-card-delta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.delta-positive { color: var(--green); }
.delta-negative { color: var(--red); }
.delta-neutral  { color: var(--muted); }

.product-card-trend {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.4rem;
  margin-top: 0.5rem;
  border: 1px solid var(--border);
  background: var(--secondary-bg);
  color: var(--fg);
}

.product-card-trend.falling {
  color: var(--red);
  border-color: rgba(192, 57, 43, 0.2);
  background: rgba(192, 57, 43, 0.06);
}

.product-card-trend.rising {
  color: var(--green);
  border-color: rgba(45, 106, 79, 0.2);
  background: rgba(45, 106, 79, 0.06);
}

.product-card-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.confidence-dots {
  display: inline-flex;
  gap: 2px;
}

.confidence-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
}

.confidence-dot.active {
  background: var(--fg);
}

/* ═══════════════════════════════════════════════════════════════════════════
   6. PRICE DATA TABLE
   ═══════════════════════════════════════════════════════════════════════════ */
.price-data {
  padding: 4rem 0;
}

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.price-table thead {
  border-bottom: 2px solid var(--fg);
}

.price-table th {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 0.75rem 0.75rem;
  text-align: left;
  white-space: nowrap;
}

.price-table th:not(:first-child) {
  text-align: right;
}

.price-table td {
  padding: 0.75rem 0.75rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.price-table td:not(:first-child) {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.price-table td:first-child {
  font-weight: 500;
}

.price-table tbody tr:hover {
  background: rgba(0, 31, 63, 0.02);
}

.trend-badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15rem 0.35rem;
  border: 1px solid var(--border);
  background: var(--secondary-bg);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.trend-badge.falling {
  color: var(--red);
  border-color: rgba(192, 57, 43, 0.2);
  background: rgba(192, 57, 43, 0.06);
}

.trend-badge.rising {
  color: var(--green);
  border-color: rgba(45, 106, 79, 0.2);
  background: rgba(45, 106, 79, 0.06);
}

.trend-badge .trend-arrow {
  font-size: 0.55rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   7. PROMPT LABORATORY
   ═══════════════════════════════════════════════════════════════════════════ */
.prompt-lab {
  background: var(--surface-navy);
  color: var(--surface-navy-fg);
  padding: 4rem 0;
}

.prompt-lab-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.prompt-lab-header svg {
  opacity: 0.7;
}

.prompt-lab-header h2 {
  color: var(--surface-navy-fg);
}

.prompt-lab-subtitle {
  font-size: 1.05rem;
  color: rgba(249, 247, 242, 0.65);
  margin-bottom: 2.5rem;
  max-width: 520px;
}

.prompt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.prompt-card {
  border: 1px solid rgba(249, 247, 242, 0.15);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: border-color 0.25s;
}

.prompt-card:hover {
  border-color: rgba(249, 247, 242, 0.35);
}

.prompt-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(249, 247, 242, 0.08);
}

.prompt-card-icon svg {
  color: var(--surface-navy-fg);
}

.prompt-card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--surface-navy-fg);
  margin-bottom: 0.5rem;
}

.prompt-card p {
  font-size: 0.85rem;
  color: rgba(249, 247, 242, 0.65);
  line-height: 1.6;
}

.prompt-lab-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.prompt-lab-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--surface-navy-fg);
  color: var(--surface-navy);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: opacity 0.2s;
}

.prompt-lab-cta-btn:hover {
  opacity: 0.9;
}

.prompt-lab-cta-btn .arrow {
  transition: transform 0.2s;
}

.prompt-lab-cta-btn:hover .arrow {
  transform: translateX(3px);
}

.prompt-lab-cta-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(249, 247, 242, 0.4);
  letter-spacing: 0.05em;
  margin-left: 1rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   8. FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-slogan {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-nav a {
  font-size: 0.8rem;
  color: var(--muted);
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--fg);
}

.footer-sep {
  color: var(--border);
  font-size: 0.7rem;
}

/* ── Footer Signup ─────────────────────────────────────────────────────── */

.footer-signup {
  text-align: center;
}

.footer-signup-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.footer-form {
  display: flex;
  gap: 0;
}

.footer-form input[type="email"] {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-right: none;
  background: white;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--fg);
  outline: none;
  transition: border-color 0.2s;
  min-width: 180px;
}

.footer-form input[type="email"]::placeholder {
  color: var(--muted);
}

.footer-form input[type="email"]:focus {
  border-color: var(--fg);
}

.footer-form button {
  padding: 0.6rem 1rem;
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--fg);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}

.footer-form button:hover {
  background: #002b5c;
}

.footer-form + .form-message {
  text-align: center;
  max-width: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  /* Masthead */
  .masthead-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 1rem 2rem 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
  }

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

  .masthead-hamburger {
    display: flex;
  }

  .masthead-inner {
    position: relative;
  }

  .masthead-title {
    font-size: 0.65rem;
    letter-spacing: 0.15em;
  }

  /* Intelligence Grid */
  .intel-grid {
    grid-template-columns: 1fr;
  }

  /* Trade Alerts */
  .alert-card {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .alert-date-col {
    text-align: left;
  }

  .trade-alerts-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .trade-alerts-filter-row {
    flex-direction: column;
    gap: 0.5rem;
  }

  #type-filter-bar {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 0.5rem;
  }

  /* Product Overview */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Prompt Lab */
  .prompt-grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }

  .footer-form {
    flex-direction: column;
  }

  .footer-form input[type="email"] {
    border-right: 1px solid var(--border);
    border-bottom: none;
  }
}

@media (max-width: 480px) {
  .ticker-item {
    padding: 0.4rem 1rem;
    font-size: 0.6rem;
  }

  .ticker-label {
    font-size: 0.55rem;
  }

  .container {
    padding: 0 1.25rem;
  }

  .masthead-inner {
    padding: 1rem 1.25rem;
  }

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

  .section-header h2 {
    font-size: 1.2rem;
  }

  .prompt-lab-cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .prompt-lab-cta-meta {
    margin-left: 0;
  }
}

/* ── Fade-in Animation ──────────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Loading State ──────────────────────────────────────────────────────── */
.loading-placeholder {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-align: center;
  padding: 3rem;
}