/* Phone-first single column. Cool slate neutrals, one deep blue accent. */
:root {
  --bg: #f5f6f8; --card: #ffffff; --fg: #171a20; --muted: #5d6573; --line: #e2e5ea;
  --accent: #1f5fa8; --accent-soft: #e5edf7; --danger: #b0302a;
  --head: "Newsreader", Georgia, "Times New Roman", serif;
  --ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, system-ui, sans-serif;
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111419; --card: #181c23; --fg: #e8ebf0; --muted: #98a1b0; --line: #262b34;
    --accent: #84b3ec; --accent-soft: #1c2838; --danger: #f08a83; color-scheme: dark; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.45 var(--ui); padding-bottom: env(safe-area-inset-bottom, 0px); }
button { font: inherit; color: inherit; }
a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0px); }
.bar { display: flex; align-items: center; justify-content: space-between; padding: 8px var(--gutter-r) 2px var(--gutter-l); max-width: 680px; margin: 0 auto; }
.bar h1 { font: 600 1.5rem/1 var(--head); margin: 0; letter-spacing: -0.01em; }
.tools { display: flex; gap: 2px; }
.icon { width: 40px; height: 40px; display: grid; place-items: center; border: 0; background: none; border-radius: 10px; cursor: pointer; color: var(--fg); }
.icon:active { background: var(--accent-soft); }
.icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.spin svg { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.tabs { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; padding: 6px var(--gutter-r) 8px var(--gutter-l); max-width: 680px; margin: 0 auto; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button { flex: none; border: 0; background: none; padding: 7px 13px; border-radius: 999px; color: var(--muted); font-weight: 500; font-size: 0.9rem; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--fg); color: var(--bg); }

main { max-width: 680px; margin: 0 auto; }
.story { display: grid; grid-template-columns: 1fr auto; gap: 4px 14px; padding: 14px var(--gutter-r) 10px var(--gutter-l); border-bottom: 1px solid var(--line); background: var(--card); }
.story.read h2 { color: var(--muted); }
.meta { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; font-size: 0.78rem; color: var(--muted); }
.meta .src { color: var(--fg); font-weight: 600; }
.why { background: var(--accent-soft); color: var(--accent); padding: 1px 8px; border-radius: 999px; font-weight: 500; }
.lock { font-size: 0.72rem; }
.story h2 { grid-column: 1; margin: 2px 0 0; font: 600 1.13rem/1.28 var(--head); text-wrap: pretty; min-width: 0; }
.story h2 a { color: inherit; text-decoration: none; }
.story .sum { grid-column: 1; margin: 0; color: var(--muted); font-size: 0.9rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; min-width: 0; }
.story img.thumb { grid-column: 2; grid-row: 2 / span 2; width: 76px; height: 76px; object-fit: cover; border-radius: 8px; background: var(--line); margin-top: 4px; }
.also { grid-column: 1 / -1; font-size: 0.8rem; color: var(--muted); }
.also a { color: var(--muted); }
.acts { grid-column: 1 / -1; display: flex; align-items: center; gap: 2px; margin-top: 4px; margin-left: -10px; }
.acts .spacer { flex: 1; }
.act { display: inline-flex; align-items: center; gap: 5px; border: 0; background: none; padding: 8px 10px; border-radius: 8px; color: var(--muted); font-size: 0.84rem; font-weight: 500; cursor: pointer; text-decoration: none; }
.act:active { background: var(--accent-soft); }
.act svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.act.on { color: var(--accent); }
.act.on svg { fill: currentColor; }
.act.read-btn { color: var(--accent); }

.empty, .more { max-width: 680px; margin: 0 auto; padding: 40px var(--gutter-r) 60px var(--gutter-l); color: var(--muted); text-align: center; }
.empty h2 { font: 600 1.2rem var(--head); color: var(--fg); margin: 0 0 6px; }

.sheet { position: fixed; inset: 0; z-index: 20; background: rgb(0 0 0 / 0.35); display: flex; align-items: flex-end; justify-content: center; }
.sheet-card { width: 100%; max-width: 520px; background: var(--card); border-radius: 16px 16px 0 0; padding: 14px var(--gutter-r) calc(14px + env(safe-area-inset-bottom, 0px)) var(--gutter-l); display: flex; flex-direction: column; gap: 4px; }
.sheet-title { margin: 4px 4px 8px; font: 600 1rem/1.3 var(--head); color: var(--fg); }
.sheet-card button { border: 0; background: none; text-align: left; padding: 13px 8px; border-radius: 10px; font-size: 1rem; cursor: pointer; }
.sheet-card button:active { background: var(--accent-soft); }
.sheet-card .cancel { text-align: center; color: var(--muted); }
.sheet-card .primary { background: var(--accent); color: #fff; text-align: center; font-weight: 600; }
.sheet-card input { font: inherit; font-size: 16px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--fg); margin-bottom: 6px; }

.reader { position: fixed; inset: 0; z-index: 30; background: var(--card); overflow-y: auto; -webkit-overflow-scrolling: touch; padding-top: env(safe-area-inset-top, 0px); }
.reader-bar { position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 6px var(--gutter-r) 6px calc(var(--gutter-l) - 8px); background: var(--card); border-bottom: 1px solid var(--line); font-weight: 600; }
.reader-bar a { text-decoration: none; font-weight: 500; }
.reader-body { max-width: 640px; margin: 0 auto; padding: 20px var(--gutter-r) 80px var(--gutter-l); font: 1.1rem/1.65 var(--head); overflow-wrap: break-word; }
.reader-body h1 { font: 600 1.7rem/1.2 var(--head); margin: 0 0 8px; text-wrap: balance; }
.reader-body .by { font: 0.85rem var(--ui); color: var(--muted); margin-bottom: 20px; }
.reader-body img { max-width: 100%; height: auto; border-radius: 6px; }
.reader-body figcaption { font: 0.8rem var(--ui); color: var(--muted); }
.reader-body blockquote { margin: 1em 0; padding-left: 1em; border-left: 3px solid var(--line); color: var(--muted); }
.reader-body pre, .reader-body table { overflow-x: auto; display: block; max-width: 100%; }
.reader-body .err { font-family: var(--ui); color: var(--muted); }

.settings { font-family: var(--ui); font-size: 0.95rem; }
.settings h3 { font: 600 1.15rem var(--head); margin: 28px 0 8px; }
.settings h3:first-child { margin-top: 0; }
.settings ol, .settings ul { padding-left: 1.2em; }
.settings code { font-size: 0.85em; background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
.src-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.src-row small { display: block; color: var(--muted); }
.src-row .bad { color: var(--danger); }
.toggle { border: 1px solid var(--line); background: none; border-radius: 999px; padding: 5px 12px; font-size: 0.82rem; cursor: pointer; flex: none; }
.toggle.off { color: var(--danger); border-color: var(--danger); }
.bookmarklet { display: inline-block; padding: 8px 14px; border-radius: 8px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; }

.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); z-index: 40; background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: 0.9rem; max-width: calc(100% - 32px); }

@media (min-width: 700px) {
  main { margin-top: 12px; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
  .story img.thumb { width: 96px; height: 96px; }
}
@media (prefers-reduced-motion: reduce) { .spin svg { animation: none; } }

/* Visitors on the public site can read; only the owner gets the buttons that teach the stream. */
.guest [data-act="like"], .guest [data-act="save"], .guest [data-act="menu"],
.guest #addBtn, .guest #refreshBtn, .guest .owner-only, .guest .toggle { display: none !important; }