/* =====================================================================
   WeTheNorth Archive · wtn-mirrors.xyz
   style.css · Retro / Dark-Bronze / Vintage-Library aesthetic
   CSS Prefix: ddb73
   Fonts: Josefin Sans (display), Crimson Pro (body), Special Elite (accent)
   ===================================================================== */

@import '/_base.css';
@import '/_effects.css';

/* =====================================================================
   ROOT — Extended Retro Tokens
   All hsl() values live here. NEVER use literal hsl() outside :root
   or @keyframes.
   ===================================================================== */
:root {
  /* Retro warm background tones (overrides base bg to match retro mood) */
  --retro-paper:       hsl(34 28% 90%);
  --retro-parchment:   hsl(36 22% 82%);
  --retro-tan:         hsl(33 20% 72%);
  --retro-shadow:      hsl(30 18% 18%);

  /* Resolved bg/fg using raw values from _design_variables for components */
  --bg-0-resolved:     hsl(30 25% 8%);
  --bg-1-resolved:     hsl(30 20% 12%);
  --bg-2-resolved:     hsl(30 15% 17%);
  --fg-1-resolved:     hsl(210 40% 98%);
  --fg-2-resolved:     hsl(215 20% 75%);
  --fg-3-resolved:     hsl(215 15% 55%);
  --line-1-resolved:   hsl(215 15% 20%);
  --line-2-resolved:   hsl(215 15% 28%);
  --status-ok-color:   hsl(140 70% 45%);
  --link-live-color:   hsl(145 65% 48%);

  /* Retro accent overrides */
  --sepia-tint:        hsl(30 40% 14%);
  --aged-gold:         hsl(38 55% 52%);
  --aged-gold-muted:   hsl(38 55% 52% / 0.18);
  --ink-brown:         hsl(25 35% 25%);
  --foxing-orange:     hsl(22 60% 55%);
  --foxing-muted:      hsl(22 60% 55% / 0.12);
  --stamp-red:         hsl(0 82% 45%);         /* == var(--accent) */
  --stamp-red-faded:   hsl(0 55% 35% / 0.25);

  /* Card backgrounds — aged paper feel */
  --card-bg:           hsl(30 20% 13%);
  --card-bg-hover:     hsl(30 18% 16%);
  --card-border:       hsl(30 18% 22%);

  /* Section backgrounds alternating */
  --sec-a-bg:          hsl(30 25% 8%);
  --sec-b-bg:          hsl(30 20% 10%);

  /* Retro typography extras */
  --font-typeface:     'Special Elite', 'Courier New', monospace;

  /* Spacing rhythm extras */
  --section-pad-y:     5rem;
  --section-pad-y-sm:  3rem;
  --container:         74rem;

  /* Border utilities */
  --border-dashed:     1.5px dashed hsl(30 18% 28%);
  --border-solid:      1px solid hsl(30 18% 22%);
  --border-accent:     1px solid var(--accent);

  /* Retro shadows */
  --shadow-stamp:      2px 2px 0 hsl(0 0% 0% / 0.45);
  --shadow-card-retro: 0 4px 20px hsl(0 0% 0% / 0.35), 0 1px 3px hsl(0 0% 0% / 0.2);
  --shadow-inset:      inset 0 2px 6px hsl(0 0% 0% / 0.25);

  /* Z-index stack */
  --z-header: 100;
  --z-overlay: 200;
  --z-modal: 300;

  /* Utility alpha colors (used in gradients, overlays) */
  --bg-0-88:           hsl(30 25% 8% / 0.88);
  --bg-0-50:           hsl(30 25% 8% / 0.50);
  --white-full:        hsl(0 0% 100%);
  --white-22:          hsl(0 0% 100% / 0.22);
  --white-02:          hsl(0 0% 100% / 0.015);
  --black-45:          hsl(0 0% 0% / 0.45);
  --black-40:          hsl(0 0% 0% / 0.4);
  --line-stripe-07:    var(--line-stripe-07);
}

/* =====================================================================
   BODY
   ===================================================================== */
.ddb73-body {
  background-color: var(--bg-0-resolved);
  color: var(--fg-1-resolved);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  overflow-x: hidden;
}

/* =====================================================================
   SKIP LINK — already in _base.css, just ensure visible
   ===================================================================== */
.ddb73-skip-link:focus {
  top: 1rem;
  z-index: var(--z-modal);
}

/* =====================================================================
   HEADER
   ===================================================================== */
.ddb73-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--bg-0-resolved);
  border-bottom: var(--border-dashed);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ddb73-header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.875rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Brandmark */
.ddb73-brandmark {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  text-decoration: none;
  flex-shrink: 0;
}

.ddb73-brandmark img {
  height: 42px;
  width: auto;
  object-fit: contain;
  filter: sepia(20%) brightness(0.95);
}

.ddb73-brand-sub {
  font-family: var(--font-typeface);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--fg-3-resolved);
  text-transform: uppercase;
}

/* Nav */
.ddb73-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.ddb73-nav a {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-2-resolved);
  text-decoration: none;
  position: relative;
  transition: color 0.22s var(--ease-out-3);
}

.ddb73-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.35s var(--ease-out-quart);
}

.ddb73-nav a:hover {
  color: var(--fg-1-resolved);
}

.ddb73-nav a:hover::after {
  width: 100%;
}

.ddb73-nav-call {
  font-family: var(--font-typeface);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  border: var(--border-accent);
  padding: 0.2rem 0.55rem;
  border-radius: 2px;
  user-select: none;
}

/* Hamburger */
.ddb73-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: var(--border-solid);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0;
  transition: border-color 0.2s;
}

.ddb73-burger:hover {
  border-color: var(--accent);
}

.ddb73-burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--fg-2-resolved);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out-3), opacity 0.2s;
}

.ddb73-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.ddb73-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.ddb73-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav panel */
.ddb73-nav.is-open {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-0-resolved);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  z-index: calc(var(--z-header) - 1);
}

.ddb73-nav.is-open a {
  font-size: 1.5rem;
}

/* =====================================================================
   HERO
   ===================================================================== */
.ddb73-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background-color: var(--sepia-tint);
}

/* Noise overlay applied via .ddb73-noise in _effects.css */
.ddb73-hero.ddb73-noise {
  isolation: isolate;
}

.ddb73-hero.ddb73-noise::after {
  z-index: 2;
}

/* Hero background image */
.ddb73-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.ddb73-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: sepia(40%) brightness(0.35) contrast(1.1);
}

/* Dark gradient over image */
.ddb73-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--bg-0-resolved) 0%,
    var(--bg-0-88) 55%,
    var(--bg-0-50) 100%
  );
}

/* Inner layout */
.ddb73-hero-inner {
  position: relative;
  z-index: 3;
  max-width: var(--container);
  margin: 0 auto;
  padding: 6rem 2rem 4rem;
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  width: 100%;
}

/* Book-spine sidebar */
.ddb73-spine {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
  border-right: 2px solid var(--accent);
  padding-right: 1.2rem;
  min-height: 320px;
}

.ddb73-spine-top,
.ddb73-spine-bottom {
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--fg-3-resolved);
  text-transform: uppercase;
}

.ddb73-spine-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

/* Hero body content */
.ddb73-hero-body {
  flex: 1;
  max-width: 66ch;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Call block */
.ddb73-call-block {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-typeface);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.ddb73-call-label {
  color: var(--fg-3-resolved);
  text-transform: uppercase;
}

.ddb73-call-number {
  color: var(--accent);
  border: var(--border-accent);
  padding: 0.15rem 0.6rem;
  border-radius: 2px;
}

/* Hero title */
.ddb73-hero-title {
  font-family: var(--font-display);
  font-size: var(--font-size-display);
  font-weight: 700;
  line-height: 1.1;
  color: var(--fg-1-resolved);
  letter-spacing: -0.01em;
}

/* Hero lede */
.ddb73-hero-lede {
  font-size: 1.05rem;
  color: var(--fg-2-resolved);
  line-height: 1.7;
  max-width: 60ch;
}

/* Hero sub-link */
.ddb73-hero-sub {
  font-size: 0.9rem;
  color: var(--fg-3-resolved);
}

.ddb73-hero-sub a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* =====================================================================
   PRIMARY CARD (hero link card)
   ===================================================================== */
.ddb73-primary-card {
  background: var(--card-bg);
  border: var(--border-dashed);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-card-retro);
  position: relative;
  overflow: hidden;
  max-width: 52ch;
}

/* Aged corner fold effect */
.ddb73-primary-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 28px 28px 0;
  border-color: transparent var(--bg-0-resolved) transparent transparent;
}

.ddb73-primary-card-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ddb73-card-ser {
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--fg-3-resolved);
  text-transform: uppercase;
}

/* Stamps */
.ddb73-stamp {
  font-family: var(--font-typeface);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 2px;
  padding: 0.2rem 0.55rem;
  font-weight: bold;
  box-shadow: var(--shadow-stamp);
}

.ddb73-stamp-verified {
  background: var(--stamp-red-faded);
  color: var(--accent);
  border: 1px solid var(--accent);
  transform: rotate(-1.5deg);
  display: inline-block;
}

/* Primary address */
.ddb73-primary-addr {
  background: var(--bg-0-resolved);
  border: var(--border-solid);
  border-radius: 3px;
  padding: 0.75rem 1rem;
  font-family: var(--font-typeface);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  word-break: break-all;
}

.ddb73-primary-addr a {
  color: var(--link-live-color);
  text-decoration: none;
  transition: color 0.2s;
}

.ddb73-primary-addr a:hover {
  color: var(--accent);
}

/* Primary note */
.ddb73-primary-note {
  font-size: 0.82rem;
  color: var(--fg-3-resolved);
  line-height: 1.5;
  border-left: 2px solid var(--accent);
  padding-left: 0.75rem;
  max-width: 100%;
}

/* =====================================================================
   COPY BUTTONS
   ===================================================================== */
.ddb73-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0.65rem 1.4rem;
  background: var(--accent);
  color: var(--white-full);
  transition: background-color 0.18s var(--ease-out-3),
              transform 0.15s var(--ease-out-3),
              box-shadow 0.18s;
  position: relative;
  overflow: hidden;
}

.ddb73-copy-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--accent-glow);
}

.ddb73-copy-btn:active {
  transform: translateY(0) scale(0.98);
  background: var(--accent-active);
}

.ddb73-copy-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Shimmer variant */
.ddb73-shimmer-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    var(--white-22) 50%,
    transparent 100%
  );
  transform: skewX(-20deg);
  animation: ddb73-shimmer 3.5s ease-in-out infinite;
}

@keyframes ddb73-shimmer {
  0%   { left: -120%; }
  60%  { left: 120%; }
  100% { left: 120%; }
}

/* Small copy button variant */
.ddb73-copy-sm {
  font-size: 0.75rem;
  padding: 0.45rem 1rem;
}

/* =====================================================================
   TRUST BAR
   ===================================================================== */
.ddb73-trust-bar {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  margin: 0;
}

.ddb73-trust-bar li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-typeface);
  font-size: 0.78rem;
  color: var(--fg-2-resolved);
  letter-spacing: 0.04em;
  max-width: 100%;
}

.ddb73-pill-call {
  font-size: 0.68rem;
  color: var(--accent);
  border: var(--border-accent);
  padding: 0.1rem 0.45rem;
  border-radius: 2px;
  flex-shrink: 0;
}

/* =====================================================================
   FOXING DIVIDER
   ===================================================================== */
.ddb73-foxing {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1.25rem 0;
  overflow: hidden;
}

.ddb73-foxing span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--foxing-orange);
  opacity: 0.4;
  flex-shrink: 0;
}

.ddb73-foxing span:nth-child(1) { transform: scale(0.7); }
.ddb73-foxing span:nth-child(2) { transform: scale(1.1); opacity: 0.6; }
.ddb73-foxing span:nth-child(3) { transform: scale(0.9); opacity: 0.5; }
.ddb73-foxing span:nth-child(4) { transform: scale(1.2); opacity: 0.7; }
.ddb73-foxing span:nth-child(5) { transform: scale(0.75); opacity: 0.35; }

/* =====================================================================
   SECTION FRAMEWORK
   ===================================================================== */
.ddb73-section {
  padding: var(--section-pad-y) 2rem;
}

.ddb73-section:nth-of-type(even) {
  background-color: var(--sec-b-bg);
}

.ddb73-section-head {
  max-width: var(--container);
  margin: 0 auto 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ddb73-section-call {
  font-family: var(--font-typeface);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  border-bottom: 1px dotted var(--card-border);
  padding-bottom: 0.35rem;
  display: inline-block;
}

.ddb73-section-title {
  font-family: var(--font-display);
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--fg-1-resolved);
  line-height: 1.2;
  max-width: 50ch;
}

.ddb73-section-lede {
  color: var(--fg-2-resolved);
  font-size: 1rem;
  max-width: 66ch;
  line-height: 1.65;
}

.ddb73-section-foot {
  max-width: var(--container);
  margin: 2rem auto 0;
  font-size: 0.9rem;
  color: var(--fg-3-resolved);
  text-align: center;
}

/* =====================================================================
   TESTIMONIALS — CARD CATALOG
   ===================================================================== */
.ddb73-testimonials {
  background-color: var(--sec-a-bg);
}

.ddb73-card-catalog {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

/* Catalog card — aged index card aesthetic */
.ddb73-cat-card {
  background: var(--card-bg);
  border: var(--border-dashed);
  border-radius: 3px;
  padding: 1.4rem 1.4rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  box-shadow: var(--shadow-card-retro);
  transition: transform 0.22s var(--ease-out-3),
              box-shadow 0.22s var(--ease-out-3);
}

.ddb73-cat-card:hover {
  transform: var(--hover-transform);
  box-shadow: 0 10px 32px var(--black-45);
}

.ddb73-cat-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--border-dashed);
  padding-bottom: 0.75rem;
}

.ddb73-cat-num {
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
}

/* Punch holes decoration */
.ddb73-cat-holes {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.ddb73-cat-holes i {
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-0-resolved);
  border: 1.5px solid var(--card-border);
  font-style: normal;
}

/* Quote */
.ddb73-cat-card blockquote {
  border: none;
  padding: 0;
  flex: 1;
}

.ddb73-cat-card blockquote p {
  font-size: 0.93rem;
  color: var(--fg-2-resolved);
  line-height: 1.65;
  max-width: 100%;
  font-style: italic;
}

/* Card footer */
.ddb73-cat-card-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  border-top: var(--border-dashed);
  padding-top: 0.75rem;
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  color: var(--fg-3-resolved);
}

.ddb73-cat-author {
  color: var(--fg-2-resolved);
  font-style: normal;
  flex: 1;
}

.ddb73-cat-stamp em {
  font-style: normal;
  color: var(--accent);
}

.ddb73-cat-date {
  letter-spacing: 0.08em;
  color: var(--fg-3-resolved);
}

/* =====================================================================
   FEATURES — BENTO GRID
   ===================================================================== */
.ddb73-features {
  background-color: var(--sec-b-bg);
}

.ddb73-bento {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.ddb73-bento-cell {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: transform 0.25s var(--ease-out-3),
              box-shadow 0.25s var(--ease-out-3);
  position: relative;
  overflow: hidden;
}

/* Aged corner overlay on bento cards */
.ddb73-bento-cell::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--white-02) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.ddb73-bento-cell:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 40px var(--black-40);
}

.ddb73-bento-lg {
  grid-column: span 2;
  grid-row: span 2;
}

.ddb73-bento-wide {
  grid-column: span 2;
}

.ddb73-bento-call {
  font-family: var(--font-typeface);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
}

.ddb73-bento-cell h3 {
  font-family: var(--font-display);
  font-size: var(--font-size-h3);
  font-weight: 600;
  color: var(--fg-1-resolved);
  line-height: 1.25;
}

.ddb73-bento-cell p {
  font-size: 0.93rem;
  color: var(--fg-2-resolved);
  line-height: 1.65;
  max-width: 100%;
}

.ddb73-bento-cell img {
  margin-top: auto;
  border-radius: 3px;
  width: 100%;
  object-fit: cover;
  max-height: 200px;
  filter: sepia(25%) brightness(0.7);
  transition: filter 0.3s;
}

.ddb73-bento-cell:hover img {
  filter: sepia(10%) brightness(0.85);
}

/* tilt effect (mouse-driven via JS) */
.ddb73-tilt {
  transform-style: preserve-3d;
}

/* =====================================================================
   FAQ — REFERENCE DESK
   ===================================================================== */
.ddb73-faq {
  background-color: var(--sec-a-bg);
}

.ddb73-faq-wrap {
  max-width: 72ch;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ddb73-faq-item {
  border: var(--border-dashed);
  border-radius: var(--radius);
  background: var(--card-bg);
  overflow: hidden;
  transition: border-color 0.2s;
}

.ddb73-faq-item[open] {
  border-color: var(--accent);
}

.ddb73-faq-item summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background-color 0.18s;
}

.ddb73-faq-item summary::-webkit-details-marker { display: none; }

.ddb73-faq-item summary:hover {
  background: var(--card-bg-hover);
}

.ddb73-faq-sig {
  font-family: var(--font-typeface);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  flex-shrink: 0;
  min-width: 4.5rem;
}

.ddb73-faq-q {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg-1-resolved);
  flex: 1;
  line-height: 1.35;
}

.ddb73-faq-toggle {
  font-family: var(--font-typeface);
  font-size: 1.25rem;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.3s var(--ease-out-3);
  line-height: 1;
}

.ddb73-faq-item[open] .ddb73-faq-toggle {
  transform: rotate(45deg);
}

.ddb73-faq-a {
  padding: 0 1.25rem 1.25rem 1.25rem;
  padding-left: calc(1.25rem + 4.5rem + 0.75rem);
}

.ddb73-faq-a p {
  font-size: 0.93rem;
  color: var(--fg-2-resolved);
  line-height: 1.7;
  max-width: 100%;
}

.ddb73-faq-a p + p {
  margin-top: 0.75rem;
}

.ddb73-faq-a a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* =====================================================================
   STATS — CIRCULATION RECORD
   ===================================================================== */
.ddb73-stats {
  background-color: var(--sec-b-bg);
}

.ddb73-stat-row {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.ddb73-stat-card {
  background: var(--card-bg);
  border: var(--border-dashed);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  text-align: center;
  box-shadow: var(--shadow-card-retro);
}

.ddb73-stat-call {
  font-family: var(--font-typeface);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--fg-3-resolved);
  text-transform: uppercase;
  border-bottom: 1px dotted var(--card-border);
  padding-bottom: 0.5rem;
}

.ddb73-stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.ddb73-stat-decimal {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
}

.ddb73-stat-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fg-1-resolved);
  letter-spacing: 0.03em;
  line-height: 1.3;
}

.ddb73-stat-detail {
  font-size: 0.78rem;
  color: var(--fg-3-resolved);
  line-height: 1.5;
  max-width: 100%;
}

.ddb73-stat-note {
  max-width: var(--container);
  margin: 2.5rem auto 0;
  text-align: center;
  font-size: 0.88rem;
  color: var(--fg-3-resolved);
  border-top: var(--border-dashed);
  padding-top: 1.5rem;
  line-height: 1.6;
}

/* =====================================================================
   HOW-TO — BORROWING INSTRUCTIONS
   ===================================================================== */
.ddb73-howto {
  background-color: var(--sec-a-bg);
}

.ddb73-steps {
  max-width: var(--container);
  margin: 0 auto;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  counter-reset: steps;
  padding: 0;
}

.ddb73-step {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1.5rem;
  align-items: start;
  padding-bottom: 2.5rem;
  border-bottom: var(--border-dashed);
  position: relative;
}

.ddb73-step:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

/* Vertical thread connecting steps */
.ddb73-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: calc(2.5rem - 1px);
  top: 3rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  opacity: 0.25;
}

.ddb73-step-num {
  font-family: var(--font-typeface);
  font-size: 1.2rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  padding-top: 0.25rem;
  text-align: center;
  border: var(--border-accent);
  border-radius: 3px;
  padding: 0.5rem 0.4rem;
  background: var(--stamp-red-faded);
  line-height: 1;
  height: fit-content;
}

.ddb73-step-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ddb73-step-body h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg-1-resolved);
  line-height: 1.3;
}

.ddb73-step-body p {
  font-size: 0.93rem;
  color: var(--fg-2-resolved);
  line-height: 1.7;
  max-width: 66ch;
}

.ddb73-step-body img {
  border-radius: var(--radius);
  max-height: 280px;
  width: 100%;
  object-fit: cover;
  filter: sepia(25%) brightness(0.65);
  margin-top: 0.5rem;
  border: var(--border-dashed);
}

.ddb73-step-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* =====================================================================
   LINKS — INDEX OF VERIFIED PORTALS
   ===================================================================== */
.ddb73-links-sec {
  background-color: var(--sec-b-bg);
}

.ddb73-links-idx {
  max-width: var(--container);
  margin: 0 auto;
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ddb73-link-entry {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1.25rem;
  align-items: start;
}

/* Alphabetical letter marker */
.ddb73-letter-marker {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-typeface);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--accent);
  border: var(--border-accent);
  border-radius: 3px;
  background: var(--stamp-red-faded);
  flex-shrink: 0;
}

.ddb73-link-body {
  background: var(--card-bg);
  border: var(--border-dashed);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  box-shadow: var(--shadow-card-retro);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ddb73-link-body:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.ddb73-link-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.ddb73-link-serial {
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--fg-3-resolved);
  text-transform: uppercase;
}

.ddb73-link-status {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-typeface);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ddb73-status-online {
  color: var(--link-live-color);
}

.ddb73-status-online i {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--link-live-color);
  box-shadow: 0 0 6px var(--link-live-color);
  font-style: normal;
  animation: ddb73-pulse-dot 2.4s ease-in-out infinite;
}

@keyframes ddb73-pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.75); }
}

.ddb73-link-verified {
  font-family: var(--font-typeface);
  font-size: 0.68rem;
  color: var(--fg-3-resolved);
  letter-spacing: 0.06em;
  margin-left: auto;
}

.ddb73-link-addr {
  display: block;
  font-family: var(--font-typeface);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--link-live-color);
  word-break: break-all;
  background: var(--bg-0-resolved);
  padding: 0.7rem 1rem;
  border-radius: 3px;
  border: var(--border-solid);
  line-height: 1.5;
}

.ddb73-links-note {
  max-width: var(--container);
  margin: 2rem auto 0;
  font-size: 0.85rem;
  color: var(--fg-3-resolved);
  border-top: var(--border-dashed);
  padding-top: 1.25rem;
  line-height: 1.6;
  max-width: 66ch;
}

/* =====================================================================
   CTA — CHECK OUT YOUR COPY
   ===================================================================== */
.ddb73-cta {
  background-color: var(--sec-a-bg);
}

.ddb73-cta-card {
  max-width: 52rem;
  margin: 0 auto;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.25rem;
  box-shadow: var(--shadow-card-retro);
  position: relative;
  overflow: hidden;
}

/* Retro texture overlay */
.ddb73-cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 28px,
    var(--line-stripe-07) 29px,
    var(--line-stripe-07) 30px
  );
  pointer-events: none;
  z-index: 0;
}

.ddb73-cta-card > * {
  position: relative;
  z-index: 1;
}

.ddb73-cta-call {
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
}

.ddb73-cta-card h2.ddb73-section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

.ddb73-cta-card p {
  color: var(--fg-2-resolved);
  max-width: 56ch;
  font-size: 0.95rem;
}

.ddb73-cta-link {
  display: block;
  font-family: var(--font-typeface);
  font-size: 0.85rem;
  color: var(--link-live-color);
  word-break: break-all;
  background: var(--bg-0-resolved);
  border: var(--border-dashed);
  border-radius: 3px;
  padding: 0.8rem 1.2rem;
  width: 100%;
  max-width: 52ch;
  transition: border-color 0.2s;
}

.ddb73-cta-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.ddb73-cta-sub {
  font-size: 0.85rem;
  color: var(--fg-3-resolved);
  max-width: 100%;
}

.ddb73-cta-sub a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* =====================================================================
   FOOTER — DUE-DATE SLIP
   ===================================================================== */
.ddb73-footer {
  background-color: var(--bg-1-resolved);
  border-top: var(--border-dashed);
  padding: 3.5rem 2rem 2rem;
}

.ddb73-slip {
  max-width: var(--container);
  margin: 0 auto;
  background: var(--card-bg);
  border: var(--border-dashed);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card-retro);
}

/* Lined paper texture inside slip */
.ddb73-slip::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 30px,
    var(--line-stripe-07) 31px
  );
}

.ddb73-slip {
  position: relative;
}

.ddb73-slip > * {
  position: relative;
  z-index: 1;
}

.ddb73-slip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.75rem;
  border-bottom: var(--border-dashed);
  background: var(--bg-0-resolved);
}

.ddb73-slip-title {
  font-family: var(--font-typeface);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2-resolved);
}

.ddb73-slip-call {
  font-family: var(--font-typeface);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.ddb73-slip-body {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 2rem 1.75rem;
}

.ddb73-slip-col {
  padding: 0 1.5rem;
  border-right: var(--border-dashed);
}

.ddb73-slip-col:first-child {
  padding-left: 0;
}

.ddb73-slip-col:last-child {
  border-right: none;
}

.ddb73-slip-col h4 {
  font-family: var(--font-typeface);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.85rem;
  border-bottom: 1px dotted var(--card-border);
  padding-bottom: 0.4rem;
}

.ddb73-slip-col ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.ddb73-slip-col ul li a {
  font-size: 0.83rem;
  color: var(--fg-2-resolved);
  text-decoration: none;
  transition: color 0.18s;
  position: relative;
}

.ddb73-slip-col ul li a::before {
  content: '›';
  margin-right: 0.35rem;
  color: var(--accent);
  opacity: 0.5;
  transition: opacity 0.18s;
}

.ddb73-slip-col ul li a:hover {
  color: var(--fg-1-resolved);
}

.ddb73-slip-col ul li a:hover::before {
  opacity: 1;
}

/* Stamp log */
.ddb73-slip-stamps {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ddb73-slip-stamp {
  font-family: var(--font-typeface);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-3-resolved);
  border: 1.5px solid var(--card-border);
  border-radius: 2px;
  padding: 0.3rem 0.6rem;
  text-align: center;
  line-height: 1.4;
  display: block;
  transform: rotate(-1deg);
}

.ddb73-slip-stamp-now {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--stamp-red-faded);
  transform: rotate(1deg);
}

/* Footer bottom */
.ddb73-slip-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 1.75rem;
  border-top: var(--border-dashed);
  background: var(--bg-0-resolved);
  font-size: 0.78rem;
  color: var(--fg-3-resolved);
  font-family: var(--font-typeface);
  letter-spacing: 0.04em;
}

.ddb73-slip-foot strong {
  color: var(--fg-2-resolved);
  font-weight: 600;
}

/* =====================================================================
   REFERENCES SECTION (if referenced in nav)
   ===================================================================== */
#references {
  scroll-margin-top: 80px;
}

/* =====================================================================
   UTILITY — SCROLL MARGIN FOR ANCHOR LINKS
   ===================================================================== */
section[id],
footer[id] {
  scroll-margin-top: 5rem;
}

/* =====================================================================
   MEDIA QUERIES
   ===================================================================== */

/* ── 1024px and below ── */
@media (max-width: 1024px) {
  .ddb73-bento {
    grid-template-columns: repeat(2, 1fr);
  }

  .ddb73-bento-lg {
    grid-column: span 2;
    grid-row: span 1;
  }

  .ddb73-bento-wide {
    grid-column: span 2;
  }

  .ddb73-stat-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .ddb73-slip-body {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 0;
  }

  .ddb73-slip-col {
    padding: 0 1.25rem;
    border-right: none;
    border-bottom: var(--border-dashed);
    padding-bottom: 1.5rem;
  }

  .ddb73-slip-col:nth-child(2),
  .ddb73-slip-col:last-child {
    border-bottom: none;
  }

  .ddb73-hero-inner {
    gap: 1.5rem;
  }
}

/* ── 768px and below ── */
@media (max-width: 768px) {
  :root {
    --section-pad-y: var(--section-pad-y-sm);
  }

  .ddb73-header-inner {
    padding: 0.75rem 1.25rem;
  }

  .ddb73-nav {
    gap: 0;
  }

  .ddb73-nav a,
  .ddb73-nav-call {
    display: none;
  }

  .ddb73-nav.is-open a,
  .ddb73-nav.is-open .ddb73-nav-call {
    display: flex;
  }

  .ddb73-nav.is-open .ddb73-nav-call {
    display: inline-block;
  }

  .ddb73-burger {
    display: flex;
  }

  .ddb73-hero-inner {
    flex-direction: column;
    padding: 4rem 1.25rem 3rem;
  }

  .ddb73-spine {
    writing-mode: horizontal-tb;
    transform: none;
    border-right: none;
    border-bottom: 1px dashed var(--line-2-resolved);
    padding-right: 0;
    padding-bottom: 1rem;
    min-height: auto;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
  }

  .ddb73-spine-title {
    font-size: 0.85rem;
  }

  .ddb73-bento {
    grid-template-columns: 1fr;
  }

  .ddb73-bento-lg,
  .ddb73-bento-wide {
    grid-column: span 1;
  }

  .ddb73-stat-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .ddb73-step {
    grid-template-columns: 3.5rem 1fr;
    gap: 1rem;
  }

  .ddb73-card-catalog {
    grid-template-columns: 1fr;
  }

  .ddb73-faq-a {
    padding-left: 1.25rem;
  }

  .ddb73-slip-body {
    grid-template-columns: 1fr;
    padding: 1.5rem 1.25rem;
  }

  .ddb73-slip-col {
    border-right: none;
    border-bottom: var(--border-dashed);
    padding: 0 0 1.25rem;
  }

  .ddb73-slip-col:last-child {
    border-bottom: none;
  }

  .ddb73-slip-head,
  .ddb73-slip-foot {
    padding: 0.85rem 1.25rem;
  }

  .ddb73-cta-card {
    padding: 2rem 1.5rem;
  }

  .ddb73-link-entry {
    grid-template-columns: 2rem 1fr;
    gap: 0.75rem;
  }

  .ddb73-letter-marker {
    width: 2rem;
    height: 2rem;
    font-size: 0.9rem;
  }
}

/* ── 480px and below ── */
@media (max-width: 480px) {
  .ddb73-hero-title {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }

  .ddb73-stat-row {
    grid-template-columns: 1fr;
  }

  .ddb73-primary-card {
    padding: 1.1rem;
  }

  .ddb73-step {
    grid-template-columns: 1fr;
  }

  .ddb73-step-num {
    width: fit-content;
  }

  .ddb73-step:not(:last-child)::after {
    display: none;
  }

  .ddb73-trust-bar {
    gap: 0.5rem;
  }

  .ddb73-slip-stamps {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .ddb73-faq-item summary {
    flex-wrap: wrap;
    gap: 0.4rem;
  }

  .ddb73-faq-sig {
    display: none;
  }

  .ddb73-copy-btn {
    width: 100%;
    justify-content: center;
  }
}

/* =====================================================================
   PRINT
   ===================================================================== */
@media print {
  .ddb73-header,
  .ddb73-burger,
  .ddb73-copy-btn,
  .ddb73-cta {
    display: none;
  }

  body {
    background: #fff;
    color: #111;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}

/* === Mobile nav overlay === */
.ddb73-mobile-nav {
  position: fixed;
  inset: 0;
  background: hsl(var(--bg-0));
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transform: translateY(-100%);
  transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: none;
}
.ddb73-mobile-nav.is-open {
  transform: translateY(0);
  pointer-events: auto;
}
.ddb73-mobile-nav-link {
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--fg-1));
  text-decoration: none;
  transition: color 0.2s;
}
.ddb73-mobile-nav-link:hover { color: var(--accent); }