*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9cb3;
  --accent: #3d9cff;
  --danger: #f07178;
  --radius: 12px;
  --tap: 48px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

main {
  width: min(100%, 36rem);
  margin: 0 auto;
  padding: 1rem clamp(0.75rem, 4vw, 1.25rem) 2rem;
}

h1 {
  font-size: clamp(1.35rem, 5vw, 1.75rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.page-header {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  margin-bottom: 0.75rem;
}

.page-header > h1 {
  margin: 0;
  flex: 1;
  min-width: 0;
  line-height: 1.2;
}

.page-header .icon-btn {
  flex-shrink: 0;
  margin-top: 0.1em;
}

h2 {
  font-size: 1.15rem;
  margin: 1.25rem 0 0.5rem;
}

a {
  color: var(--accent);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem;
}

label {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="url"],
select {
  width: 100%;
  min-height: var(--tap);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid #2a3648;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0 1rem;
  border-radius: var(--radius);
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: var(--accent);
  color: #061018;
}

.btn.secondary {
  background: #2e3f56;
  color: var(--text);
}

.btn.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  min-height: 44px;
  padding: 0 0.65rem;
}

.btn.block {
  width: 100%;
}

.flash {
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  background: #243045;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.flash.error {
  background: #3a2428;
  color: #ffc9c9;
}

.pair-code {
  font-size: clamp(2rem, 12vw, 3rem);
  letter-spacing: 0.2em;
  font-weight: 700;
  text-align: center;
  padding: 1rem;
  font-variant-numeric: tabular-nums;
}

.link-item {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.65rem 0.45rem;
  margin: 0 -0.45rem;
  border-bottom: 1px solid #243045;
  border-radius: var(--radius);
  transition: background 0.15s ease;
}

.link-item:has(input[name="active_link"]:checked) {
  background: color-mix(in srgb, var(--accent) 16%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 40%, transparent);
}

.link-item:last-child {
  border-bottom: none;
}

.link-url {
  word-break: break-all;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  user-select: text;
}

.icon-btn {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: #243045;
  color: var(--text);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
}

.mode-toggle {
  display: flex;
  gap: 0.5rem;
}

.mode-toggle form {
  flex: 1;
}

.mode-toggle .btn {
  width: 100%;
}

.htmx-request.htmx-indicator {
  opacity: 0.6;
}

/* Read screen list (TV / remote): semantic list + visible focus (many TVs skip :focus-visible) */
.read-nav .read-link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.read-nav .read-link-list > li {
  margin: 0;
}

.read-link-list .read-link-card:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent);
}

.read-link-list .read-link-card:focus-visible {
  box-shadow: 0 0 0 3px var(--accent);
}

.read-link-list .read-link-card.read-link-active {
  outline: 2px solid var(--accent);
}

.read-link-list .read-link-card.read-link-active:focus {
  outline: 2px solid var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 70%, white);
}

footer.note {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: var(--muted);
}