/* Swipeable card reader. Mobile-first, airy typography, iPhone-safe. */

html.hn-cards-html {
  height: 100%;
  height: 100svh;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

html.hn-cards-html,
body.hn-cards-page {
  height: 100%;
  height: 100svh;
  height: 100dvh;
  overflow: hidden;
  background: var(--bg);
  overscroll-behavior: none;
}

body.hn-cards-page {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  min-height: 100svh;
  min-height: 100dvh;
  max-height: 100dvh;
}

body.hn-cards-page .hn-site-nav {
  flex: none;
  padding-top: env(safe-area-inset-top, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}
body.hn-cards-page .hn-site-nav-inner {
  min-height: 44px;
  padding-top: 4px;
  padding-bottom: 4px;
}
body.hn-cards-page .hn-brand,
body.hn-cards-page .hn-nav-links a,
body.hn-cards-page .hn-type-toggle,
body.hn-cards-page [data-theme-toggle] {
  min-height: 44px;
  min-width: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 6px;
  touch-action: manipulation;
}

.cards-chrome {
  flex: none;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  padding: 2px max(20px, env(safe-area-inset-right, 0px)) 4px max(20px, env(safe-area-inset-left, 0px));
  font-family: var(--font-ui);
  letter-spacing: 0;
  font-size: 13px;
  color: var(--ink-muted);
}
.cards-chrome-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.cards-date {
  color: var(--ink);
  font-weight: 500;
}
.view-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: 0;
}
.view-toggle a {
  color: var(--ink-muted);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 4px;
  touch-action: manipulation;
}
.view-toggle a:hover { color: var(--accent); }
.view-toggle .is-on {
  color: var(--ink);
  font-weight: 500;
  box-shadow: inset 0 -1px 0 var(--ink);
}

.cards-stage {
  flex: 1;
  position: relative;
  display: flex;
  align-items: stretch;
  justify-content: center;
  min-height: 0;
  padding: 6px max(16px, env(safe-area-inset-right, 0px)) 4px max(16px, env(safe-area-inset-left, 0px));
  touch-action: pan-y;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.cards-frame {
  position: relative;
  width: 100%;
  max-width: 620px;
  height: 100%;
  overflow: hidden;
  touch-action: pan-y;
}

.hn-card {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  box-shadow: 0 1px 2px rgba(28, 25, 23, 0.04), 0 10px 28px rgba(28, 25, 23, 0.05);
  padding: 22px 22px 18px;
  overflow: hidden;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(110%);
  will-change: transform;
  -webkit-user-select: none;
  user-select: none;
}
[data-theme="dark"] .hn-card {
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 28px rgba(0, 0, 0, 0.25);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hn-card {
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 10px 28px rgba(0, 0, 0, 0.25);
  }
}
.hn-card.is-current,
.hn-card.is-prev,
.hn-card.is-next {
  visibility: visible;
}
.hn-card.is-current {
  pointer-events: auto;
  z-index: 3;
  transform: translateX(0);
}
.hn-card.is-prev {
  z-index: 2;
  transform: translateX(-108%);
}
.hn-card.is-next {
  z-index: 2;
  transform: translateX(108%);
}
.hn-card.is-animating {
  transition: transform 0.34s cubic-bezier(0.22, 0.8, 0.28, 1);
}
.hn-card.is-dragging {
  transition: none;
  -webkit-user-select: none;
  user-select: none;
}

.hn-card-scroll {
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-right: 2px;
}

/* ----- typographic hierarchy ----- */
.hn-card-topline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 0 0 16px;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: 0;
  color: var(--ink-faint);
  line-height: 1.4;
}
.hn-card-rank {
  font-variant-numeric: tabular-nums;
}
.hn-card-tag {
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}
.hn-card-stats {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
}

.hn-card-kicker {
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  font-weight: 400;
  margin: 0 0 14px;
}

.hn-card-title {
  margin: 0 0 14px;
  font-size: 1.35em;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.015em;
}
.hn-card-title a {
  color: inherit;
  text-decoration: none;
}
.hn-card-title a:hover { color: var(--accent); }

.hn-card-blurb {
  margin: 0 0 18px;
  color: var(--ink-muted);
  font-size: 0.98em;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

.hn-card-takeaway {
  margin: 0 0 22px;
  padding: 12px 16px 12px 16px;
  border-left: 2px solid var(--hairline-strong);
  border-radius: 0 10px 10px 0;
  background: rgba(28, 25, 23, 0.035);
  color: var(--ink);
  font-size: 1.06em;
  line-height: 1.65;
}
[data-theme="dark"] .hn-card-takeaway {
  background: rgba(255, 255, 255, 0.05);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hn-card-takeaway {
    background: rgba(255, 255, 255, 0.05);
  }
}

.hn-card-key {
  margin: 0 0 8px;
}
.hn-card-key-label {
  margin: 0 0 10px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

.hn-card-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: pts;
}
.hn-card-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.7;
  padding: 0;
  counter-increment: pts;
}
.hn-card-points li[hidden],
.hn-card-points li.is-dropped {
  display: none;
}
.hn-card-points li::before {
  content: counter(pts);
  flex: none;
  width: 1.15em;
  margin-top: 0.12em;
  font-family: var(--font-ui);
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}
.hn-card-point {
  min-width: 0;
  flex: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

.hn-card-footer {
  flex: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  padding-top: 16px;
  margin-top: 4px;
}
.hn-card-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.hn-card-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--hairline);
  background: rgba(28, 25, 23, 0.025);
  color: var(--ink-muted);
  font-family: var(--font-ui);
  font-size: 14px;
  letter-spacing: 0;
  text-decoration: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.hn-card-pill:hover { color: var(--ink); border-color: var(--hairline-strong); }
[data-theme="dark"] .hn-card-pill {
  background: rgba(255, 255, 255, 0.04);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hn-card-pill {
    background: rgba(255, 255, 255, 0.04);
  }
}

.hn-card-expand {
  appearance: none;
  flex: none;
  font-family: var(--font-ui);
  font-size: 14px;
  letter-spacing: 0;
  border: 0;
  background: none;
  color: var(--ink-muted);
  min-height: 44px;
  min-width: 44px;
  padding: 0 10px;
  margin: 0;
  cursor: pointer;
  text-align: left;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.hn-card-expand:hover { color: var(--ink); }
.hn-card-expand[aria-expanded="true"] { color: var(--ink); }

.hn-card-full {
  margin-top: 22px;
  padding-top: 4px;
  display: grid;
  gap: 18px;
}
.hn-card-full[hidden] { display: none; }
.hn-card-full h3 {
  margin: 0 0 10px;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}
.hn-card-full ul {
  margin: 0;
  padding: 0 0 0 1.15em;
  display: grid;
  gap: 12px;
}
.hn-card-full li { line-height: 1.7; }

.hn-card.is-read .hn-card-title { color: var(--ink-muted); font-weight: 600; }

.hn-card.is-tight {
  padding: 16px 18px 14px;
}
.hn-card.is-tight .hn-card-topline { margin-bottom: 12px; }
.hn-card.is-tight .hn-card-kicker { margin-bottom: 10px; }
.hn-card.is-tight .hn-card-title { margin-bottom: 10px; }
.hn-card.is-tight .hn-card-blurb { margin-bottom: 12px; }
.hn-card.is-tight .hn-card-takeaway { margin-bottom: 14px; padding: 10px 14px; }
.hn-card.is-tight .hn-card-key { margin-bottom: 4px; }
.hn-card.is-tight .hn-card-key-label { margin-bottom: 8px; }
.hn-card.is-tight .hn-card-points { gap: 10px; }
.hn-card.is-tight .hn-card-footer { padding-top: 12px; }
.hn-card.is-tight-takeaway .hn-card-takeaway-text {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}
.hn-card.is-tight-title .hn-card-title {
  font-size: 1.22em;
  margin-bottom: 10px;
}

.hn-card-finish {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  padding: 12px 4px 24px;
}
.hn-card-finish h2 {
  margin: 0 0 12px;
  font-size: 1.45em;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
}
.hn-card-finish .lede {
  margin: 0 0 28px;
  color: var(--ink-muted);
  line-height: 1.7;
}
.hn-card-finish-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-ui);
  letter-spacing: 0;
  font-size: 15px;
}
.hn-card-finish-links a {
  color: var(--ink-muted);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  touch-action: manipulation;
}
.hn-card-finish-links a:hover { color: var(--accent); }

/* ----- thumb-zone controls ----- */
.cards-controls {
  flex: none;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  padding: 4px max(20px, env(safe-area-inset-right, 0px)) max(8px, calc(env(safe-area-inset-bottom, 0px) + 6px)) max(20px, env(safe-area-inset-left, 0px));
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-ui);
  letter-spacing: 0;
}
.cards-controls .cards-bar {
  flex: none;
  width: 100%;
  margin: 0;
}
.cards-controls-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 44px;
}
.cards-controls-nav .cards-count {
  margin-left: auto;
}
.cards-nav-btn,
.cards-controls .btn {
  min-height: 44px;
  min-width: 44px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  font-size: 15px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.cards-controls .btn[disabled],
.cards-controls .btn[aria-disabled="true"] {
  color: var(--ink-faint);
  cursor: default;
  pointer-events: none;
}

.cards-progress-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}
.cards-bar {
  flex: 1;
  height: 2px;
  background: var(--hairline);
  border-radius: 99px;
  overflow: hidden;
}
.cards-bar > span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--ink-faint);
  transition: width 0.28s ease;
}
.cards-count {
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
  white-space: nowrap;
  min-width: 4.5em;
  text-align: right;
  font-size: 13px;
}
.cards-unread {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--ink-muted);
  min-height: 44px;
  padding: 0 2px;
  font-size: 14px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.cards-unread input {
  width: 18px;
  height: 18px;
  margin: 0;
  font-size: 16px;
  accent-color: var(--ink);
}

.cards-live {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

@media (max-width: 480px) {
  .cards-chrome { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .cards-stage { padding-left: max(12px, env(safe-area-inset-left, 0px)); padding-right: max(12px, env(safe-area-inset-right, 0px)); }
  .hn-card { padding: 20px 18px 16px; border-radius: 14px; }
  .cards-controls { padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
  .hn-card-title { font-size: 1.28em; }
}

@media (max-height: 740px) {
  .cards-chrome { padding-top: 0; padding-bottom: 0; }
  .cards-stage { padding-top: 4px; padding-bottom: 2px; }
  .hn-card { padding: 16px 16px 12px; }
  .hn-card-topline { margin-bottom: 12px; }
  .hn-card-title { margin-bottom: 10px; }
  .hn-card-blurb { margin-bottom: 12px; }
  .hn-card-takeaway { margin-bottom: 14px; padding: 10px 14px; }
  .hn-card-key-label { margin-bottom: 8px; }
  .hn-card-points { gap: 10px; }
  .hn-card-footer { padding-top: 12px; }
  .cards-controls { padding-top: 0; gap: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  .hn-card.is-animating,
  .cards-bar > span { transition: none; }
}