:root {
  --bg: #ffffff;
  --bg-soft: #f6f6f8;
  --card: #ffffff;
  --fg: #16161d;
  --muted: #62636e;
  --border: #e4e4ea;
  --accent: #fe2c55;
  --accent-fg: #ffffff;
  --accent-soft: #fff0f3;
  --ok: #12945a;
  --warn: #b26a00;
  --err: #d0213b;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 16, 24, .04), 0 8px 24px rgba(16, 16, 24, .06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f0f13;
    --bg-soft: #17171d;
    --card: #1a1a21;
    --fg: #f2f2f5;
    --muted: #a3a4b0;
    --border: #2b2b35;
    --accent-soft: #2a1219;
    --ok: #3ccf8e;
    --warn: #f0a838;
    --err: #ff5d73;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }

/* header / footer */
.top { border-bottom: 1px solid var(--border); background: var(--bg); position: sticky; top: 0; z-index: 10; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--fg); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 34px; height: 34px; display: block; }
.nav { display: flex; align-items: center; gap: 10px; }
.langs { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; font-size: 13px; font-weight: 700; }
.langs a { padding: 6px 9px; color: var(--muted); }
.langs a:hover { text-decoration: none; color: var(--fg); }
.langs a.active { background: var(--bg-soft); color: var(--fg); }
.foot { border-top: 1px solid var(--border); margin-top: 72px; padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; justify-content: space-between; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--fg); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--card); color: var(--fg); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn:hover { text-decoration: none; background: var(--bg-soft); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { background: var(--accent); filter: brightness(1.06); }
.btn-small { min-height: 34px; padding: 6px 12px; font-size: 14px; border-radius: 8px; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; filter: none; }
.btn-danger { color: var(--err); }

/* landing */
.hero { padding: 72px 0 40px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; margin: 0 0 16px; letter-spacing: -.02em; }
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero .note { font-size: 14px; color: var(--muted); margin-top: 14px; }
.mock { background: var(--card); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); padding: 20px; }
.mock-row { display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 12px; background: var(--bg-soft); margin-bottom: 10px; }
.mock-thumb { width: 44px; height: 64px; border-radius: 8px; background: linear-gradient(160deg, #25f4ee55, #fe2c5588); flex: none; }
.mock-text { flex: 1; min-width: 0; }
.mock-text b { display: block; font-size: 14px; }
.mock-text span { font-size: 13px; color: var(--muted); }
.section { padding: 40px 0; }
.section h2 { font-size: 28px; margin: 0 0 24px; letter-spacing: -.01em; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.feature .ico { font-size: 24px; margin-bottom: 8px; }
.feature h3 { margin: 0 0 6px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.steps li { counter-increment: s; display: flex; gap: 14px; align-items: flex-start; }
.steps li::before { content: counter(s); flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; display: grid; place-items: center; }

/* legal */
.legal h1 { font-size: 34px; margin: 48px 0 4px; }
.legal h2 { font-size: 20px; margin: 30px 0 8px; }
.legal p, .legal li { color: var(--fg); }

/* app */
.page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin: 32px 0 20px; }
.page-head h1 { margin: 0; font-size: 28px; }
.creator { display: flex; align-items: center; gap: 12px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; background: var(--bg-soft); flex: none; }
.creator b { display: block; }
.creator span { color: var(--muted); font-size: 14px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card + .card { margin-top: 16px; }
.card h2 { font-size: 18px; margin: 0 0 14px; }
.empty { text-align: center; color: var(--muted); padding: 40px 16px; }
.alert { border-radius: 10px; padding: 12px 14px; margin: 0 0 16px; font-size: 15px; }
.alert-err { background: color-mix(in srgb, var(--err) 10%, transparent); color: var(--err); }
.alert-ok { background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }
.alert-info { background: var(--bg-soft); color: var(--fg); }

.posts { list-style: none; margin: 0; padding: 0; }
.post { display: flex; gap: 14px; align-items: flex-start; padding: 16px 0; border-top: 1px solid var(--border); }
.post:first-child { border-top: 0; padding-top: 0; }
.post-main { flex: 1; min-width: 0; }
.post-title { font-weight: 600; overflow-wrap: anywhere; }
.post-meta { color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 4px; }
.post-err { color: var(--err); font-size: 14px; margin-top: 6px; }
.post-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 9px; border-radius: 99px; background: var(--bg-soft); color: var(--muted); white-space: nowrap; }
.badge.scheduled { color: #3b6ee8; background: color-mix(in srgb, #3b6ee8 12%, transparent); }
.badge.processing, .badge.publishing { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); }
.badge.published, .badge.sent_to_inbox { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); }
.badge.failed { color: var(--err); background: color-mix(in srgb, var(--err) 12%, transparent); }

/* composer */
.composer { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 20px; align-items: start; }
.composer > *, .seg > *, .creator > div { min-width: 0; }
.creator b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body { overflow-x: hidden; }
.preview { position: sticky; top: 84px; }
.drop {
  border: 2px dashed var(--border); border-radius: var(--radius); aspect-ratio: 9 / 16; display: grid; place-items: center;
  text-align: center; color: var(--muted); cursor: pointer; padding: 16px; background: var(--bg-soft); overflow: hidden; position: relative;
}
.drop:hover, .drop.over { border-color: var(--accent); }
.drop video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background: #000; }
.file-info { font-size: 14px; color: var(--muted); margin-top: 10px; overflow-wrap: anywhere; }
.field { margin-bottom: 22px; }
.field > label, .field > .label { display: block; font-weight: 600; margin-bottom: 8px; }
.hint { color: var(--muted); font-size: 14px; margin-top: 6px; }
textarea, select, input[type="datetime-local"] {
  width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--fg); font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
textarea:focus, select:focus, input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); outline-offset: 1px; }
.seg { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.seg label {
  display: block; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; cursor: pointer; background: var(--card);
}
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.seg label:has(input:disabled) { opacity: .45; cursor: not-allowed; }
.seg b { display: block; }
.seg span { color: var(--muted); font-size: 14px; }
.checks { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
.check.disabled { opacity: .45; cursor: not-allowed; }
.toggle-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.switch { position: relative; width: 46px; height: 28px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span { position: absolute; inset: 0; border-radius: 99px; background: var(--border); transition: .15s; cursor: pointer; }
.switch span::after { content: ""; position: absolute; width: 22px; height: 22px; left: 3px; top: 3px; border-radius: 50%; background: #fff; transition: .15s; }
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::after { transform: translateX(18px); }
.sub { margin-top: 14px; padding-left: 2px; }
.label-note { font-size: 14px; color: var(--muted); margin-top: 8px; }
.consent { font-size: 14px; color: var(--muted); margin: 6px 0 16px; }
.submit-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.progress { height: 6px; border-radius: 99px; background: var(--bg-soft); overflow: hidden; margin-top: 14px; display: none; }
.progress div { height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.counter { float: right; font-weight: 400; color: var(--muted); font-size: 13px; }
.hidden { display: none !important; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-top: 40px; gap: 28px; }
  .grid3 { grid-template-columns: 1fr; }
  .composer { grid-template-columns: 1fr; }
  .preview { position: static; max-width: 280px; margin: 0 auto; width: 100%; }
}
@media (max-width: 440px) {
  .brand-name { display: none; }
}
@media (max-width: 560px) {
  .seg { grid-template-columns: 1fr; }
  .page-head { flex-direction: column; align-items: flex-start; }
  .card { padding: 18px 16px; }
  .nav .hide-sm { display: none; }
}