/* ============================================================
   Railroad Switch Keys — Theme CSS  v1.2.0
   Accessibility: WCAG AA contrast · 21px base · 1.8 line-height
   Palette: Deep navy · Brass gold · Cream · Rust
   Fonts:   Playfair Display / Source Serif 4 / JetBrains Mono
   ============================================================ */

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  /* Colors — high-contrast palette */
  --rsk-navy:      #1a2535;
  --rsk-navy-dk:   #0d1421;
  --rsk-rust:      #8B3A1A;
  --rsk-rust-lt:   #b04a22;
  --rsk-brass:     #9a6e1e;       /* darkened for AA contrast on cream */
  --rsk-brass-lt:  #c49840;
  --rsk-brass-bg:  #b8960a;       /* AA contrast on white */
  --rsk-ink:       #12161e;       /* near-black for maximum legibility */
  --rsk-ink-mid:   #2e3444;
  --rsk-ink-light: #525c70;       /* was #7a8090 — darkened for AA */
  --rsk-rule:      #cbd0db;       /* slightly darker for visibility */
  --rsk-off-white: #f4f5f8;
  --rsk-cream:     #faf7f0;
  --rsk-white:     #ffffff;
  --rsk-iron:      #1e2330;

  /* Typography */
  --rsk-font-head: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --rsk-font-body: 'Source Serif 4', Georgia, serif;
  --rsk-font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Scale — accessible sizes */
  --rsk-text-xs:   0.8rem;        /* 16.8px @ 21px base */
  --rsk-text-sm:   0.9rem;        /* 18.9px */
  --rsk-text-base: 1rem;          /* 21px  */
  --rsk-text-lg:   1.15rem;       /* 24px  */
  --rsk-text-xl:   1.35rem;       /* 28px  */
  --rsk-text-2xl:  1.65rem;       /* 34px  */

  /* Misc */
  --rsk-radius:    5px;
  --rsk-shadow:    0 2px 14px rgba(0,0,0,.09);
  --rsk-shadow-md: 0 6px 28px rgba(0,0,0,.14);
  --rsk-transition: all .18s ease;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 21px; scroll-behavior: smooth; }
body {
  font-family: var(--rsk-font-body);
  font-size: var(--rsk-text-base);
  color: var(--rsk-ink);
  background: var(--rsk-cream);
  line-height: 1.8;
}

/* ── Base Typography ──────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--rsk-font-head);
  line-height: 1.25;
  color: var(--rsk-ink);
  font-weight: 700;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); }
h4 { font-size: 1.15rem; }
a  { color: var(--rsk-brass-bg); text-decoration: none; transition: color .15s; }
a:hover { color: var(--rsk-rust); }
p  { margin-bottom: 1.1rem; }
img { max-width: 100%; height: auto; display: block; }
strong { font-weight: 700; }

/* ── Layout ───────────────────────────────────────────────── */
.rsk-inner { max-width: 1280px; margin: 0 auto; padding: 0 2rem; }
.rsk-main  { padding: 2.5rem 0 5rem; }
.rsk-section { padding: 4.5rem 0; }
.rsk-section-hdr {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.rsk-section-label {
  display: block;
  font-family: var(--rsk-font-mono);
  font-size: 0.65rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--rsk-brass-lt);
  margin-bottom: .45rem;
  font-weight: 600;
}
.rsk-section-heading {
  font-family: var(--rsk-font-head);
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  color: var(--rsk-ink);
  margin: 0;
  line-height: 1.2;
}
.rsk-eyebrow {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-family: var(--rsk-font-mono);
  font-size: 0.65rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--rsk-brass-lt);
  margin-bottom: 1.1rem;
  font-weight: 600;
}
.rsk-eyebrow::before { content: ''; width: 28px; height: 2px; background: var(--rsk-brass-lt); flex-shrink: 0; border-radius: 2px; }

/* ── Top Bar ──────────────────────────────────────────────── */
.rsk-top-bar { background: var(--rsk-navy-dk); border-bottom: 1px solid rgba(255,255,255,.07); }
.rsk-top-bar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: .5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.rsk-top-bar-text {
  font-family: var(--rsk-font-mono);
  font-size: 0.67rem;
  letter-spacing: .09em;
  color: rgba(255,255,255,.45);
  text-transform: uppercase;
}
.rsk-top-bar-text strong { color: var(--rsk-brass-lt); font-weight: 600; }
.rsk-top-bar-links { display: flex; align-items: center; gap: 1.5rem; }
.rsk-top-bar-links a {
  font-family: var(--rsk-font-mono);
  font-size: 0.65rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  transition: color .15s;
}
.rsk-top-bar-links a:hover { color: var(--rsk-brass-lt); }

/* ── Header ───────────────────────────────────────────────── */
.rsk-header {
  background: var(--rsk-navy);
  border-bottom: 4px solid var(--rsk-brass-lt);
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 3px 24px rgba(0,0,0,.35);
}
.rsk-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
}

/* Logo */
.rsk-logo { display: flex; align-items: center; gap: .85rem; text-decoration: none; flex-shrink: 0; }
.rsk-logo-text { display: flex; flex-direction: column; }
.rsk-logo-title {
  font-family: var(--rsk-font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--rsk-brass-lt);
  line-height: 1.15;
  letter-spacing: -.01em;
}
.rsk-logo-sub {
  font-family: var(--rsk-font-mono);
  font-size: .6rem;
  color: rgba(255,255,255,.42);
  letter-spacing: .15em;
  text-transform: uppercase;
  margin-top: .12rem;
}

/* Nav */
.rsk-nav { display: flex; align-items: center; }
.rsk-nav-menu { list-style: none; display: flex; align-items: center; gap: .25rem; }
.rsk-nav-menu a {
  color: rgba(255,255,255,.82);
  font-family: var(--rsk-font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .55rem .95rem;
  border-radius: var(--rsk-radius);
  transition: var(--rsk-transition);
  display: block;
  font-weight: 400;
}
.rsk-nav-menu a:hover,
.rsk-nav-menu .current-menu-item > a { color: var(--rsk-brass-lt); background: rgba(255,255,255,.07); }
.rsk-nav-menu .rsk-nav-cta > a {
  background: var(--rsk-rust);
  color: #fff;
  font-weight: 600;
  padding: .5rem 1.1rem;
}
.rsk-nav-menu .rsk-nav-cta > a:hover { background: var(--rsk-rust-lt); color: #fff; }

/* Hamburger */
.rsk-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1.5px solid rgba(255,255,255,.25);
  border-radius: var(--rsk-radius);
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
  transition: border-color .15s;
}
.rsk-nav-toggle:hover { border-color: var(--rsk-brass-lt); }
.rsk-nav-toggle span { display: block; width: 100%; height: 2px; background: rgba(255,255,255,.8); border-radius: 2px; transition: all .2s; }

/* ── Breadcrumb ───────────────────────────────────────────── */
.rsk-breadcrumb { background: var(--rsk-navy-dk); padding: .65rem 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.rsk-breadcrumb .rsk-inner { display: flex; align-items: center; gap: .5rem; font-family: var(--rsk-font-mono); font-size: .72rem; color: rgba(255,255,255,.45); letter-spacing: .05em; }
.rsk-breadcrumb a { color: var(--rsk-brass-lt); }
.rsk-breadcrumb a:hover { color: #fff; }

/* ── Buttons ──────────────────────────────────────────────── */
.rsk-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  background: var(--rsk-navy);
  color: var(--rsk-brass-lt);
  font-family: var(--rsk-font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 1rem 2.2rem;
  border: 2px solid var(--rsk-brass-lt);
  border-radius: var(--rsk-radius);
  cursor: pointer;
  text-decoration: none;
  transition: var(--rsk-transition);
  white-space: nowrap;
  font-weight: 600;
}
.rsk-btn-primary:hover { background: var(--rsk-brass-lt); color: var(--rsk-navy-dk); border-color: var(--rsk-brass-lt); }
.rsk-btn-primary:disabled { opacity: .5; cursor: not-allowed; }

.rsk-btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--rsk-brass-bg);
  font-family: var(--rsk-font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .9rem 2rem;
  border: 2px solid var(--rsk-brass-bg);
  border-radius: var(--rsk-radius);
  text-decoration: none;
  cursor: pointer;
  transition: var(--rsk-transition);
  white-space: nowrap;
  font-weight: 600;
}
.rsk-btn-outline:hover { background: var(--rsk-brass-bg); color: var(--rsk-white); }

.rsk-btn-outline--dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: rgba(255,255,255,.72);
  font-family: var(--rsk-font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .9rem 2rem;
  border: 2px solid rgba(255,255,255,.28);
  border-radius: var(--rsk-radius);
  text-decoration: none;
  cursor: pointer;
  transition: var(--rsk-transition);
  white-space: nowrap;
  font-weight: 600;
}
.rsk-btn-outline--dark:hover { border-color: var(--rsk-brass-lt); color: var(--rsk-brass-lt); }

.rsk-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--rsk-ink-light);
  font-family: var(--rsk-font-mono);
  font-size: .78rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: .8rem 1.6rem;
  border: 1.5px solid var(--rsk-rule);
  border-radius: var(--rsk-radius);
  cursor: pointer;
  text-decoration: none;
  transition: var(--rsk-transition);
}
.rsk-btn-ghost:hover { border-color: var(--rsk-brass-bg); color: var(--rsk-brass-bg); }

/* ── Cards / Grid ─────────────────────────────────────────── */
.rsk-grid,
.rsk-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1.25rem;
}

.rsk-card {
  display: flex;
  flex-direction: column;
  background: var(--rsk-white);
  border: 1.5px solid var(--rsk-rule);
  border-radius: var(--rsk-radius);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: box-shadow .2s, border-color .2s, transform .15s;
}
.rsk-card:hover { box-shadow: var(--rsk-shadow-md); border-color: var(--rsk-brass-bg); transform: translateY(-3px); }

.rsk-card-img,
.rsk-card__img {
  aspect-ratio: 1;
  background: var(--rsk-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: .6rem;
}
.rsk-card-img img,
.rsk-card__img img { width: 100%; height: 100%; object-fit: contain; }
.rsk-card-no-img { font-size: 2rem; opacity: .3; }

.rsk-card-body,
.rsk-card__body { padding: 1rem; display: flex; flex-direction: column; gap: .35rem; }

.rsk-card-title,
.rsk-card__title { font-family: var(--rsk-font-head); font-size: 1rem; font-weight: 700; line-height: 1.35; color: var(--rsk-ink); }

.rsk-card-railroad,
.rsk-card__railroad { font-family: var(--rsk-font-mono); font-size: .72rem; letter-spacing: .07em; text-transform: uppercase; color: var(--rsk-brass-bg); font-weight: 600; }

.rsk-card-meta,
.rsk-card__meta { font-family: var(--rsk-font-mono); font-size: .7rem; color: var(--rsk-ink-light); letter-spacing: .04em; }

.rsk-card__rarity { margin-top: .2rem; }

/* Rarity badges */
.rsk-rarity { display: inline-block; padding: .2rem .6rem; border-radius: 3px; font-family: var(--rsk-font-mono); font-weight: 700; font-size: .65rem; letter-spacing: .04em; text-transform: capitalize; }
.rsk-rarity--common,   .rsk-rarity--1 { background: #e3e5ea; color: #2d3340; }
.rsk-rarity--uncommon, .rsk-rarity--2 { background: #c8f0dc; color: #054a2e; }
.rsk-rarity--rare,     .rsk-rarity--3 { background: #fdefc0; color: #6b3206; }
.rsk-rarity--very-rare,.rsk-rarity--4 { background: #fdd5d5; color: #7a1111; }
.rsk-rarity--5                        { background: #e8e0fc; color: #41198a; }

/* ── Single Key ───────────────────────────────────────────── */
.rsk-key-layout { display: grid; grid-template-columns: 440px 1fr; gap: 4rem; padding: 3rem 2rem 5rem; align-items: start; }
.rsk-key-main-img-wrap { background: var(--rsk-white); border: 1.5px solid var(--rsk-rule); border-radius: var(--rsk-radius); padding: 1.25rem; }
.rsk-key-main-img { width: 100%; max-height: 440px; object-fit: contain; }
.rsk-key-gallery  { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: .85rem; }
.rsk-key-thumb    { width: 80px; height: 80px; object-fit: contain; border: 1.5px solid var(--rsk-rule); border-radius: 4px; background: var(--rsk-white); cursor: zoom-in; transition: border-color .15s; }
.rsk-key-thumb:hover { border-color: var(--rsk-brass-bg); }
.rsk-key-title    { font-size: clamp(1.6rem, 3.2vw, 2.4rem); margin-bottom: .6rem; }
.rsk-key-railroad { font-family: var(--rsk-font-mono); font-size: .88rem; letter-spacing: .1em; text-transform: uppercase; color: var(--rsk-brass-bg); margin-bottom: 1.75rem; font-weight: 600; }
.rsk-key-specs    { display: grid; grid-template-columns: auto 1fr; gap: .5rem 1.75rem; margin-bottom: 1.75rem; background: var(--rsk-off-white); border: 1px solid var(--rsk-rule); border-radius: var(--rsk-radius); padding: 1.25rem; }
.rsk-key-specs dt { font-family: var(--rsk-font-mono); font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--rsk-ink-light); padding-top: .18rem; font-weight: 600; }
.rsk-key-specs dd { font-size: 1rem; color: var(--rsk-ink-mid); font-weight: 400; }
.rsk-key-tax      { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; margin-bottom: .85rem; }
.rsk-tax-label    { font-family: var(--rsk-font-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--rsk-ink-light); font-weight: 600; }
.rsk-tag          { background: var(--rsk-off-white); border: 1.5px solid var(--rsk-rule); color: var(--rsk-ink-mid); font-family: var(--rsk-font-mono); font-size: .72rem; letter-spacing: .05em; padding: .25rem .75rem; border-radius: 99px; text-decoration: none; transition: var(--rsk-transition); }
.rsk-tag:hover    { border-color: var(--rsk-brass-bg); color: var(--rsk-brass-bg); background: #fff; }
.rsk-key-notes    { margin-top: 1.75rem; padding-top: 1.75rem; border-top: 1.5px solid var(--rsk-rule); }
.rsk-key-notes h3 { font-size: .9rem; font-family: var(--rsk-font-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--rsk-ink-light); margin-bottom: .85rem; }

/* ── Archive Layout ───────────────────────────────────────── */
.rsk-archive-layout { display: grid; grid-template-columns: 260px 1fr; gap: 3rem; padding: 2.5rem 2rem 5rem; align-items: start; }
.rsk-sidebar { background: var(--rsk-white); border: 1.5px solid var(--rsk-rule); border-radius: var(--rsk-radius); padding: 1.5rem; position: sticky; top: 92px; }
.rsk-sidebar-title { font-family: var(--rsk-font-mono); font-size: .7rem; letter-spacing: .15em; text-transform: uppercase; color: var(--rsk-ink-light); margin-bottom: 1.25rem; padding-bottom: .75rem; border-bottom: 1.5px solid var(--rsk-rule); font-weight: 600; }
.rsk-filter-group { margin-bottom: 1.5rem; }
.rsk-filter-label { display: block; font-family: var(--rsk-font-mono); font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; color: var(--rsk-ink-light); margin-bottom: .5rem; font-weight: 600; }
.rsk-filter-input,
.rsk-filter-select { width: 100%; padding: .7rem .9rem; font-family: var(--rsk-font-body); font-size: 1rem; color: var(--rsk-ink); background: var(--rsk-cream); border: 1.5px solid var(--rsk-rule); border-radius: 4px; outline: none; transition: border-color .2s; }
.rsk-filter-input:focus,
.rsk-filter-select:focus { border-color: var(--rsk-brass-bg); box-shadow: 0 0 0 3px rgba(154,110,30,.12); }
.rsk-results-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 1.5rem; flex-wrap: wrap; gap: .5rem; }
.rsk-results-header h1 { font-size: 1.6rem; }
.rsk-results-count { font-family: var(--rsk-font-mono); font-size: .78rem; color: var(--rsk-ink-light); letter-spacing: .06em; }
.rsk-no-results { text-align: center; padding: 4rem 2rem; color: var(--rsk-ink-light); font-size: 1.05rem; }

/* ── Auction Archive ──────────────────────────────────────── */
.rsk-auction-table { width: 100%; border-collapse: collapse; font-size: 1rem; }
.rsk-auction-table thead tr { background: var(--rsk-navy); }
.rsk-auction-table thead th {
  padding: .85rem 1.1rem;
  font-family: var(--rsk-font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--rsk-brass-lt);
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
}
.rsk-auction-table tbody tr { border-bottom: 1px solid var(--rsk-rule); transition: background .15s; }
.rsk-auction-table tbody tr:last-child { border-bottom: none; }
.rsk-auction-table tbody tr:hover { background: var(--rsk-off-white); }
.rsk-auction-table td { padding: 1rem 1.1rem; vertical-align: middle; color: var(--rsk-ink-mid); font-size: 1rem; }
.rsk-auction-table td.rsk-auction-key { font-family: var(--rsk-font-head); font-weight: 700; color: var(--rsk-ink); font-size: 1rem; }
.rsk-auction-table td.rsk-auction-key a { color: var(--rsk-ink); }
.rsk-auction-table td.rsk-auction-key a:hover { color: var(--rsk-brass-bg); }
.rsk-auction-price {
  font-family: var(--rsk-font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--rsk-rust);
}
.rsk-auction-house-badge {
  display: inline-block;
  font-family: var(--rsk-font-mono);
  font-size: .68rem;
  letter-spacing: .07em;
  padding: .2rem .65rem;
  background: var(--rsk-off-white);
  border: 1px solid var(--rsk-rule);
  border-radius: 99px;
  color: var(--rsk-ink-light);
}
.rsk-auction-filters {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}
.rsk-auction-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  background: var(--rsk-white);
  border: 1.5px solid var(--rsk-rule);
  border-radius: var(--rsk-radius);
  text-align: center;
}
.rsk-auction-stat-n { font-family: var(--rsk-font-head); font-size: 2rem; font-weight: 700; color: var(--rsk-rust); line-height: 1; }
.rsk-auction-stat-l { font-family: var(--rsk-font-mono); font-size: .65rem; letter-spacing: .1em; text-transform: uppercase; color: var(--rsk-ink-light); margin-top: .35rem; font-weight: 600; }
.rsk-auction-img-thumb { width: 60px; height: 60px; object-fit: contain; border-radius: 3px; background: var(--rsk-cream); padding: 4px; border: 1px solid var(--rsk-rule); }

/* ── Pagination ───────────────────────────────────────────── */
.rsk-pagination { margin-top: 2.5rem; display: flex; justify-content: center; gap: .5rem; flex-wrap: wrap; }
.rsk-pagination .page-numbers { padding: .6rem 1rem; border: 1.5px solid var(--rsk-rule); border-radius: var(--rsk-radius); font-family: var(--rsk-font-mono); font-size: .8rem; color: var(--rsk-ink-mid); transition: var(--rsk-transition); }
.rsk-pagination .page-numbers.current { background: var(--rsk-navy); color: white; border-color: var(--rsk-navy); }
.rsk-pagination a.page-numbers:hover { border-color: var(--rsk-brass-bg); color: var(--rsk-brass-bg); }

/* ── Collector Profile ────────────────────────────────────── */
.rsk-collector-layout { padding: 3rem 2rem 5rem; }
.rsk-collector-hero { display: flex; align-items: flex-start; gap: 2rem; margin-bottom: 2.5rem; }
.rsk-collector-avatar { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; border: 3px solid var(--rsk-brass-lt); flex-shrink: 0; box-shadow: var(--rsk-shadow); }
.rsk-collector-meta { display: flex; flex-wrap: wrap; gap: .4rem 1.5rem; margin-top: .6rem; font-family: var(--rsk-font-mono); font-size: .78rem; color: var(--rsk-ink-light); }
.rsk-collector-meta span::before { content: '· '; }
.rsk-collector-meta span:first-child::before { content: ''; }
.rsk-collector-bio { max-width: 720px; margin-bottom: 2.5rem; font-size: 1.05rem; color: var(--rsk-ink-mid); line-height: 1.9; }
.rsk-collector-coll-photo { margin-bottom: 2.5rem; }
.rsk-collector-coll-photo h3 { font-family: var(--rsk-font-mono); font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--rsk-ink-light); margin-bottom: .85rem; font-weight: 600; }
.rsk-collector-keys { margin-top: 2.5rem; padding-top: 2.5rem; border-top: 1.5px solid var(--rsk-rule); }
.rsk-collector-keys h2 { margin-bottom: 1.5rem; }

/* ── Forms ────────────────────────────────────────────────── */
.rsk-form-wrap { max-width: 860px; padding: 3rem 0; }
.rsk-form-section { margin-bottom: 3rem; padding-bottom: 3rem; border-bottom: 1.5px solid var(--rsk-rule); }
.rsk-form-section:last-of-type { border-bottom: none; }
.rsk-form-section-title {
  font-family: var(--rsk-font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--rsk-ink);
  margin-bottom: 1.75rem;
  padding-bottom: .85rem;
  border-bottom: 2px solid var(--rsk-rule);
  display: flex;
  align-items: center;
  gap: .75rem;
}
.rsk-form-section-title::before {
  content: '';
  width: 4px;
  height: 1.4rem;
  background: var(--rsk-rust);
  border-radius: 2px;
  flex-shrink: 0;
}
/* Keep h2 inside form sections working too */
.rsk-form-section h2 { font-size: 1.3rem; font-family: var(--rsk-font-head); color: var(--rsk-ink); margin-bottom: 1.5rem; }
.rsk-form-row { display: flex; flex-direction: column; gap: 1.25rem; }
.rsk-form-row--2col { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.rsk-form-field { display: flex; flex-direction: column; gap: .45rem; }
.rsk-form-field label {
  font-family: var(--rsk-font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--rsk-ink-mid);
  font-weight: 600;
}
.rsk-req { color: var(--rsk-rust); }
.rsk-form-field input,
.rsk-form-field textarea,
.rsk-form-field select {
  padding: .8rem 1rem;
  font-family: var(--rsk-font-body);
  font-size: 1rem;
  color: var(--rsk-ink);
  background: var(--rsk-white);
  border: 1.5px solid var(--rsk-rule);
  border-radius: var(--rsk-radius);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  width: 100%;
  line-height: 1.5;
}
.rsk-form-field input:focus,
.rsk-form-field textarea:focus,
.rsk-form-field select:focus { border-color: var(--rsk-brass-bg); box-shadow: 0 0 0 3px rgba(154,110,30,.12); }
.rsk-form-field textarea { min-height: 130px; resize: vertical; }
.rsk-hint { font-size: .88rem; color: var(--rsk-ink-light); margin-top: .3rem; line-height: 1.55; }

/* File drop zone */
.rsk-file-drop {
  position: relative;
  border: 2px dashed var(--rsk-rule);
  border-radius: var(--rsk-radius);
  background: var(--rsk-off-white);
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  overflow: hidden;
}
.rsk-file-drop:hover,
.rsk-file-drop.drag-over { border-color: var(--rsk-brass-bg); background: rgba(154,110,30,.05); }
.rsk-file-drop.has-file   { border-color: var(--rsk-brass-bg); border-style: solid; }
.rsk-file-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; z-index: 2; }
.rsk-file-drop-ui {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  padding: 1.75rem;
  text-align: center;
  pointer-events: none;
  color: var(--rsk-ink-light);
  font-size: 1rem;
}
.rsk-file-drop-ui small { font-family: var(--rsk-font-mono); font-size: .68rem; letter-spacing: .06em; }
.rsk-file-preview { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }

/* Form feedback */
.rsk-form-error { background: #fef1f1; border: 2px solid #e87070; color: #7a1111; border-radius: var(--rsk-radius); padding: 1rem 1.2rem; font-size: 1rem; margin-bottom: 1.25rem; font-weight: 500; }
.rsk-form-success-box { text-align: center; padding: 4rem 2rem; }
.rsk-success-icon { width: 70px; height: 70px; border-radius: 50%; background: var(--rsk-navy); color: var(--rsk-brass-lt); font-size: 2rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 1.5rem; }

/* ── Page Hero (Advertise / static pages) ─────────────────── */
.rsk-page-hero { background: var(--rsk-navy); border-bottom: 4px solid var(--rsk-brass-lt); padding: 4rem 0; }
.rsk-page-hero-inner { max-width: 1280px; margin: 0 auto; padding: 0 2rem; }
.rsk-page-hero h1 { color: #fff; font-size: clamp(2rem, 4vw, 3rem); margin-bottom: .75rem; }
.rsk-page-hero-desc { color: rgba(255,255,255,.72); font-size: 1.1rem; max-width: 600px; line-height: 1.8; margin-top: .75rem; }

/* Stat tiles (advertise page) */
.rsk-stat-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 3.5rem; }
.rsk-stat-tile { background: var(--rsk-white); border: 1.5px solid var(--rsk-rule); border-radius: var(--rsk-radius); padding: 2rem 1.5rem; text-align: center; }
.rsk-stat-tile-n { font-family: var(--rsk-font-head); font-size: 2.4rem; font-weight: 700; color: var(--rsk-rust); line-height: 1; }
.rsk-stat-tile-l { font-family: var(--rsk-font-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--rsk-ink-light); margin-top: .5rem; font-weight: 600; }

/* Advertising option cards */
.rsk-option-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 3rem; }
.rsk-option-card { padding: 2rem; border: 1.5px solid var(--rsk-rule); border-radius: var(--rsk-radius); background: var(--rsk-white); }
.rsk-option-card h3 { font-family: var(--rsk-font-head); font-size: 1.2rem; margin-bottom: .75rem; color: var(--rsk-ink); }
.rsk-option-card p { font-size: 1rem; color: var(--rsk-ink-mid); line-height: 1.75; margin: 0; }

/* ── Lightbox ─────────────────────────────────────────────── */
#rsk-lightbox { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; }
#rsk-lightbox[hidden] { display: none; }
.rsk-lb-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.9); cursor: zoom-out; }
.rsk-lb-img { position: relative; z-index: 1; max-width: 90vw; max-height: 90vh; object-fit: contain; border-radius: var(--rsk-radius); }
.rsk-lb-close { position: absolute; top: 1.25rem; right: 1.25rem; z-index: 2; background: rgba(255,255,255,.12); border: 1.5px solid rgba(255,255,255,.25); color: white; border-radius: 50%; width: 44px; height: 44px; cursor: pointer; font-size: 1.25rem; display: flex; align-items: center; justify-content: center; transition: background .15s; }
.rsk-lb-close:hover { background: rgba(255,255,255,.25); }

/* ── Hero Section ─────────────────────────────────────────── */
.rsk-hero { background: linear-gradient(140deg, var(--rsk-navy-dk) 0%, var(--rsk-navy) 55%, #1e2f48 100%); border-bottom: 4px solid var(--rsk-brass-lt); }
.rsk-hero-inner { max-width: 1400px; margin: 0 auto; padding: 5.5rem 2rem; display: grid; grid-template-columns: 1fr 560px; gap: 4.5rem; align-items: center; }
.rsk-hero-eyebrow { font-family: var(--rsk-font-mono); font-size: .65rem; letter-spacing: .22em; text-transform: uppercase; color: var(--rsk-brass-lt); display: flex; align-items: center; gap: .65rem; margin-bottom: 1.4rem; font-weight: 600; }
.rsk-hero-eyebrow::before { content: ''; width: 32px; height: 2px; background: var(--rsk-brass-lt); border-radius: 2px; }
.rsk-hero-title { font-size: clamp(2.5rem, 5vw, 4rem); color: #fff; line-height: 1.1; letter-spacing: -.02em; margin-bottom: 1.75rem; }
.rsk-hero-title em { color: var(--rsk-brass-lt); font-style: normal; }
.rsk-hero-sub { font-size: 1.1rem; color: rgba(255,255,255,.72); line-height: 1.85; margin-bottom: 2.75rem; max-width: 500px; }
.rsk-hero-actions { display: flex; gap: 1.1rem; flex-wrap: wrap; margin-bottom: 2.75rem; }
.rsk-stats-bar { display: flex; gap: 3rem; padding-top: 2.25rem; border-top: 1.5px solid rgba(255,255,255,.1); }
.rsk-stat-n { font-family: var(--rsk-font-head); font-size: 2rem; color: var(--rsk-brass-lt); display: block; line-height: 1; }
.rsk-stat-l { font-family: var(--rsk-font-mono); font-size: .6rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.38); display: block; margin-top: .3rem; font-weight: 600; }

/* Hero visual */
.rsk-hero-visual { display: flex; flex-direction: column; gap: 1rem; }
.rsk-hero-featured-card { display: grid; grid-template-columns: 200px 1fr; background: #fff; border: 1.5px solid rgba(255,255,255,.1); border-radius: 8px; overflow: hidden; text-decoration: none; color: inherit; transition: box-shadow .2s, border-color .2s; box-shadow: 0 4px 20px rgba(0,0,0,.25); }
.rsk-hero-featured-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.4); border-color: var(--rsk-brass-lt); }
.rsk-hero-fc-img { background: var(--rsk-cream); display: flex; align-items: center; justify-content: center; padding: 1.25rem; border-right: 1px solid #eee; min-height: 200px; }
.rsk-hero-fc-img img { max-width: 100%; max-height: 180px; object-fit: contain; }
.rsk-hero-fc-body { padding: 1.25rem; display: flex; flex-direction: column; gap: .35rem; }
.rsk-hero-fc-eyebrow { font-family: var(--rsk-font-mono); font-size: .58rem; letter-spacing: .18em; text-transform: uppercase; color: var(--rsk-rust); margin-bottom: .25rem; font-weight: 600; }
.rsk-hero-fc-title { font-family: var(--rsk-font-head); font-size: 1.05rem; font-weight: 700; line-height: 1.3; color: var(--rsk-ink); }
.rsk-hero-fc-rr { font-family: var(--rsk-font-mono); font-size: .65rem; letter-spacing: .08em; text-transform: uppercase; color: var(--rsk-rust); font-weight: 600; }
.rsk-hero-fc-meta { font-family: var(--rsk-font-mono); font-size: .62rem; letter-spacing: .06em; color: var(--rsk-ink-light); }

/* Mini cards */
.rsk-hero-mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.rsk-hero-mini-card { display: flex; align-items: center; gap: .7rem; background: rgba(255,255,255,.07); border: 1.5px solid rgba(255,255,255,.12); border-radius: 5px; padding: .7rem; text-decoration: none; color: inherit; transition: background .18s, border-color .18s; overflow: hidden; }
.rsk-hero-mini-card:hover { background: rgba(255,255,255,.13); border-color: var(--rsk-brass-lt); }
.rsk-hero-mini-img { width: 68px; height: 68px; flex-shrink: 0; border-radius: 3px; overflow: hidden; background: var(--rsk-cream); display: flex; align-items: center; justify-content: center; padding: 4px; }
.rsk-hero-mini-img img { width: 100%; height: 100%; object-fit: contain; }
.rsk-hero-mini-body { flex: 1; min-width: 0; }
.rsk-hero-mini-title { font-family: var(--rsk-font-head); font-size: .85rem; font-weight: 600; color: #fff; line-height: 1.3; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rsk-hero-mini-rr { font-family: var(--rsk-font-mono); font-size: .58rem; letter-spacing: .07em; text-transform: uppercase; color: rgba(255,255,255,.42); display: block; margin-top: .18rem; }

/* ── Railroad Grid ────────────────────────────────────────── */
.rsk-rr-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px,1fr)); gap: .85rem; }
.rsk-rr-card { background: rgba(255,255,255,.06); border: 1.5px solid rgba(255,255,255,.12); border-radius: var(--rsk-radius); padding: 1rem 1.1rem; text-decoration: none; display: flex; flex-direction: column; gap: .25rem; transition: var(--rsk-transition); }
.rsk-rr-card:hover { background: rgba(196,152,64,.18); border-color: var(--rsk-brass-lt); }
.rsk-rr-name { font-family: var(--rsk-font-head); font-size: .95rem; color: #f8f3ea; line-height: 1.3; font-weight: 600; }
.rsk-rr-count { font-family: var(--rsk-font-mono); font-size: .62rem; letter-spacing: .07em; color: rgba(255,255,255,.45); }

/* ── Advertisers ──────────────────────────────────────────── */
.rsk-advertiser-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px,1fr)); gap: 1.5rem; }
.rsk-advertiser-card { background: var(--rsk-white); border: 1.5px solid var(--rsk-rule); border-radius: var(--rsk-radius); padding: 1.5rem; text-decoration: none; display: flex; flex-direction: column; align-items: center; gap: .6rem; text-align: center; transition: var(--rsk-transition); }
.rsk-advertiser-card:hover { box-shadow: var(--rsk-shadow-md); border-color: var(--rsk-brass-bg); }
.rsk-advertiser-logo { max-width: 140px; max-height: 64px; object-fit: contain; }
.rsk-advertiser-name { font-family: var(--rsk-font-head); font-size: 1.05rem; font-weight: 700; color: var(--rsk-ink); }
.rsk-advertiser-tagline { font-family: var(--rsk-font-mono); font-size: .65rem; letter-spacing: .07em; color: var(--rsk-ink-light); text-transform: uppercase; }

/* ── Coffee button ────────────────────────────────────────── */
.rsk-coffee-btn { display: inline-flex; align-items: center; gap: .55rem; background: #FFDD00; color: #1a1008; font-family: var(--rsk-font-head); font-size: 1rem; font-weight: 700; padding: .9rem 1.8rem; border-radius: var(--rsk-radius); text-decoration: none; transition: background .15s, transform .15s; }
.rsk-coffee-btn:hover { background: #ffe833; color: #1a1008; transform: translateY(-2px); }

/* ── Footer ───────────────────────────────────────────────── */
.rsk-footer { background: var(--rsk-navy-dk); border-top: 4px solid var(--rsk-brass-lt); padding: 4.5rem 0 0; margin-top: 5rem; }
.rsk-footer-inner { max-width: 1280px; margin: 0 auto; padding: 0 2rem 3.5rem; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3.5rem; }
.rsk-footer-brand-logo { display: flex; align-items: center; gap: .85rem; margin-bottom: 1.1rem; }
.rsk-footer-brand-name { font-family: var(--rsk-font-head); font-size: 1.35rem; color: #fff; font-weight: 700; }
.rsk-footer-brand p { font-size: 1rem; color: rgba(255,255,255,.62); line-height: 1.85; max-width: 290px; margin-bottom: 1.5rem; }
.rsk-footer-coffee { display: inline-flex; align-items: center; gap: .45rem; background: #FFDD00; color: #1a1008; font-family: var(--rsk-font-head); font-size: .95rem; font-weight: 700; padding: .6rem 1.2rem; border-radius: var(--rsk-radius); text-decoration: none; transition: background .15s; }
.rsk-footer-coffee:hover { background: #ffe833; color: #1a1008; }
.rsk-footer-col h5 { font-family: var(--rsk-font-mono); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: rgba(255,255,255,.42); margin-bottom: 1.1rem; border-bottom: 1px solid rgba(255,255,255,.1); padding-bottom: .6rem; font-weight: 600; }
.rsk-footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .7rem; }
.rsk-footer-col a { color: rgba(255,255,255,.65); font-size: 1rem; text-decoration: none; transition: color .18s; line-height: 1.5; }
.rsk-footer-col a:hover { color: var(--rsk-brass-lt); }
.rsk-footer-bottom { max-width: 1280px; margin: 0 auto; padding: 1.5rem 2rem; border-top: 1px solid rgba(255,255,255,.09); display: flex; align-items: center; justify-content: space-between; font-family: var(--rsk-font-mono); font-size: .65rem; letter-spacing: .09em; text-transform: uppercase; color: rgba(255,255,255,.38); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1100px) {
  .rsk-hero-inner { grid-template-columns: 1fr; gap: 3.5rem; }
  .rsk-hero-featured-card { grid-template-columns: 170px 1fr; }
}
@media (max-width: 1024px) {
  .rsk-key-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .rsk-archive-layout { grid-template-columns: 1fr; }
  .rsk-sidebar { position: static; }
  .rsk-stat-tiles { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 900px) {
  .rsk-footer-inner { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .rsk-option-grid  { grid-template-columns: 1fr; }
  html { font-size: 19px; }
}
@media (max-width: 768px) {
  .rsk-nav-toggle { display: flex; }
  .rsk-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--rsk-navy);
    border-bottom: 3px solid var(--rsk-brass-lt);
    padding: 1.25rem;
    display: none;
    z-index: 199;
    box-shadow: 0 10px 30px rgba(0,0,0,.4);
  }
  .rsk-nav.is-open { display: block; }
  .rsk-nav-menu { flex-direction: column; align-items: stretch; gap: .3rem; }
  .rsk-nav-menu a { padding: .8rem 1rem; font-size: .82rem; }
  .rsk-nav-menu .rsk-nav-cta > a { text-align: center; margin-top: .5rem; }
  .rsk-header { position: relative; }
  .rsk-top-bar-links { display: none; }
  .rsk-auction-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .rsk-stat-tiles { grid-template-columns: 1fr; gap: 1rem; }
}
@media (max-width: 640px) {
  .rsk-hero-inner { padding: 3.5rem 1.25rem; }
  .rsk-hero-mini-grid { grid-template-columns: 1fr; }
  .rsk-hero-featured-card { grid-template-columns: 110px 1fr; }
  .rsk-hero-fc-img { min-height: 120px; }
  .rsk-form-row--2col { grid-template-columns: 1fr; }
  .rsk-inner { padding: 0 1.25rem; }
  .rsk-header-inner { padding: 0 1.25rem; }
  .rsk-logo-title { font-size: 1.1rem; }
  .rsk-grid, .rsk-card-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .rsk-section-hdr { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 600px) {
  .rsk-footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .rsk-footer-bottom { flex-direction: column; gap: .6rem; text-align: center; }
}
@media (max-width: 440px) {
  .rsk-grid, .rsk-card-grid { grid-template-columns: 1fr; }
  html { font-size: 18px; }
}