.whitepaper-hero {
  min-height: 310px;
  display: flex;
  align-items: center;
  color: var(--white);
  background:
    linear-gradient(105deg, rgba(21, 18, 16, 0.95), rgba(58, 37, 25, 0.86)),
    url("../img/hero-finance.svg") center/cover no-repeat;
}

.whitepaper-hero__inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.whitepaper-hero .eyebrow { color: #e5c98f; }
.whitepaper-hero h1 { margin: 0 0 12px; font-size: clamp(38px, 5vw, 58px); line-height: 1.16; }
.whitepaper-hero__subtitle { margin: 0 0 14px; color: #f4e8d5; font-size: clamp(19px, 2.4vw, 24px); }
.whitepaper-hero__description { max-width: 760px; margin: 0; color: #eadcc8; }

.whitepaper-library { background: #f8f4ed; }
.whitepaper-library__intro { max-width: 700px; margin-bottom: 30px; }
.whitepaper-library__intro h2 { margin: 0 0 8px; color: var(--brown); font-size: clamp(26px, 3vw, 34px); }
.whitepaper-library__intro p { margin: 0; color: var(--muted); }

.whitepaper-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; }

.whitepaper-card {
  display: flex;
  min-height: 292px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 8px 22px rgba(49, 32, 20, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.whitepaper-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.whitepaper-cover {
  position: relative;
  flex: 0 0 37%;
  min-height: 292px;
  padding: 31px 34px;
  overflow: hidden;
  isolation: isolate;
  color: var(--white);
  background: linear-gradient(135deg, #5d3d25, #1f1a17);
}

.whitepaper-cover::before,
.whitepaper-cover::after { position: absolute; z-index: -1; content: ""; border: 1px solid rgba(255,255,255,.24); transform: rotate(-34deg); }
.whitepaper-cover::before { width: 180px; height: 180px; top: -92px; right: -72px; }
.whitepaper-cover::after { width: 230px; height: 230px; right: -112px; bottom: -155px; }
.whitepaper-cover.tax-risk { background: linear-gradient(135deg, #67462d, #26231f); }
.whitepaper-cover.company-cancellation { background: linear-gradient(135deg, #45503e, #1e2924); }
.whitepaper-cover.owner-finance { background: linear-gradient(135deg, #3f5265, #172a3a); }
.whitepaper-cover.sme-compliance { background: linear-gradient(135deg, #765e31, #3c2e1d); }

.whitepaper-cover__brand,
.whitepaper-cover__label { display: block; font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.whitepaper-cover__label { margin-top: 40px; color: rgba(255,255,255,.72); font-size: 10px; }
.whitepaper-cover__title { display: block; max-width: 285px; margin-top: 14px; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.35; }
.whitepaper-cover__line { position: absolute; bottom: 30px; left: 34px; width: 66px; height: 3px; background: #dfbd75; }

.whitepaper-card__body { display: flex; flex: 1; flex-direction: column; min-width: 0; padding: 29px 34px; }
.whitepaper-card .tag { align-self: flex-start; }
.whitepaper-card h2 { margin: 13px 0 9px; color: var(--brown); font-size: 22px; line-height: 1.45; }
.whitepaper-card p { max-width: 720px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; }
.whitepaper-card time { display: block; margin: 18px 0; color: var(--brown-soft); font-size: 13px; }
.whitepaper-card__actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: auto; }
.whitepaper-card__actions .btn { justify-content: center; min-width: 112px; padding: 9px 16px; border: 1px solid var(--gold); font-size: 14px; cursor: pointer; }
.whitepaper-card__actions .whitepaper-download { background: transparent; color: var(--brown); }
.whitepaper-card__actions .whitepaper-download:hover { border-color: var(--gold-dark); background: #efe1cd; }

.whitepaper-modal-open { overflow: hidden; }
.whitepaper-modal { position: fixed; z-index: 200; inset: 0; display: grid; place-items: center; padding: 22px; overflow-y: auto; background: rgba(21,18,16,.64); }
.whitepaper-modal[hidden] { display: none; }
.whitepaper-modal__dialog { position: relative; width: min(680px, 100%); padding: 34px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); box-shadow: var(--shadow); }
.whitepaper-modal__close { position: absolute; top: 14px; right: 14px; width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 50%; background: var(--white); color: var(--brown); font-size: 24px; line-height: 1; cursor: pointer; }
.whitepaper-modal h2 { margin: 6px 36px 12px 0; color: var(--brown); line-height: 1.4; }
.whitepaper-modal p, .whitepaper-modal ul { color: var(--muted); }
.whitepaper-modal h3 { margin: 24px 0 6px; color: var(--brown); font-size: 17px; }
.whitepaper-modal ul { margin: 6px 0 0; padding-left: 22px; }
.whitepaper-modal li { margin: 3px 0; }
.whitepaper-modal__published { margin-top: 22px; font-size: 14px; }

@media (max-width: 820px) {
  .whitepaper-cover { flex-basis: 40%; padding: 28px 26px; }
  .whitepaper-cover__line { left: 26px; }
  .whitepaper-card__body { padding: 26px; }
}

@media (max-width: 680px) {
  .whitepaper-hero__inner { width: min(100% - 28px, 1180px); }
  .whitepaper-card { flex-direction: column; }
  .whitepaper-cover { flex-basis: auto; min-height: 220px; padding: 25px 24px; }
  .whitepaper-cover__label { margin-top: 26px; }
  .whitepaper-cover__line { bottom: 24px; left: 24px; }
  .whitepaper-card__body { padding: 22px; }
  .whitepaper-card h2 { font-size: 20px; }
  .whitepaper-modal { padding: 14px; }
  .whitepaper-modal__dialog { padding: 28px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .whitepaper-card { transition: none; }
  .whitepaper-card:hover { transform: none; }
}