:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5d6b7c;
  --line: #d9e0e7;
  --accent: #0b6e69;
  --accent-soft: #e3f2f1;
  --bad: #b3261e;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.5 "Noto Sans",
    -apple-system,
    "Segoe UI",
    Roboto,
    Arial,
    sans-serif;
}

.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 16px;
}

.top {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.logo {
  font-weight: 700;
  font-size: 20px;
  color: var(--accent);
}
.lang button {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  padding: 6px 10px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}
.lang button:first-child {
  border-radius: 8px 0 0 8px;
}
.lang button:last-child {
  border-radius: 0 8px 8px 0;
  border-left: 0;
}
.lang button.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.hero {
  padding: 28px 0 8px;
}
.hero h1 {
  font-size: 28px;
  line-height: 1.2;
  margin: 0 0 10px;
}
.lead {
  color: var(--muted);
  margin: 0 0 12px;
}
.pros {
  margin: 0;
  padding: 0;
  list-style: none;
}
.pros li {
  padding-left: 26px;
  position: relative;
  margin: 6px 0;
}
.pros li::before {
  content: "✓";
  position: absolute;
  left: 4px;
  color: var(--accent);
  font-weight: 700;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin: 18px 0;
}
.card h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

label,
fieldset {
  display: block;
  margin: 0 0 14px;
}
label > span,
legend {
  display: block;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 4px;
}
fieldset {
  border: 0;
  padding: 0;
}
input,
select,
textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}
select + input,
select + textarea {
  margin-top: 0;
}
[hidden] {
  display: none !important;
}
small {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}

.row {
  display: flex;
  gap: 12px;
}
.row > * {
  flex: 1;
  min-width: 0;
}

.objlist {
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px 10px;
}
.obj {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 14px;
  margin: 8px 0;
  color: var(--text);
}
.obj input {
  width: auto;
  margin-top: 4px;
  flex: none;
}

details.blank {
  margin: 4px 0 16px;
}
details summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 14px 18px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.btn:disabled {
  opacity: 0.6;
  cursor: wait;
}
.btn.ghost {
  background: var(--accent-soft);
  color: var(--accent);
}
.btn.small {
  width: auto;
  padding: 10px 16px;
  flex: none;
}

.status {
  margin: 10px 0 0;
  min-height: 1.5em;
  color: var(--muted);
}
.status.bad {
  color: var(--bad);
}

.packs {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, 1fr);
  margin: 12px 0;
}
.pack {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 12px;
  font: inherit;
  cursor: pointer;
  text-align: left;
  color: var(--text);
}
.pack b {
  display: block;
  font-size: 15px;
}
.pack span {
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
}
.pack.best {
  border: 2px solid var(--accent);
}
.amount {
  font-size: 28px;
  font-weight: 700;
  margin: 4px 0;
}
.code {
  font-size: 20px;
  letter-spacing: 2px;
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 6px;
}
#invoice {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 4px;
}

.result-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.ai {
  margin: 0;
}
.hint {
  color: var(--muted);
  font-size: 14px;
  margin: 4px 0 12px;
}
.plan h3 {
  font-size: 16px;
  margin: 14px 0 6px;
}
.plan ul {
  margin: 0;
  padding-left: 20px;
}
.plan [contenteditable]:focus {
  outline: 2px solid var(--accent);
  background: var(--accent-soft);
}
.scroll {
  overflow-x: auto;
}
.plan table {
  border-collapse: collapse;
  width: 100%;
  min-width: 760px;
  font-size: 14px;
}
.plan th,
.plan td {
  border: 1px solid var(--line);
  padding: 8px;
  vertical-align: top;
  white-space: pre-line;
}
.plan th {
  background: var(--accent-soft);
  text-align: left;
}
.actions {
  display: flex;
  gap: 10px;
  margin: 16px 0 6px;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}
.faq summary {
  color: var(--text);
  margin: 0;
}
.faq p {
  margin: 8px 0 0;
  color: var(--muted);
}

.foot {
  color: var(--muted);
  font-size: 14px;
  padding-bottom: 32px;
}
.foot a {
  color: var(--accent);
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 24px;
  }
  .packs {
    grid-template-columns: 1fr;
  }
  .actions {
    flex-direction: column;
  }
}

a.btn {
  text-align: center;
  text-decoration: none;
}

.inapp {
  background: #fff4d6;
  border: 1px solid #f0d58a;
  border-radius: var(--radius);
  padding: 12px;
  margin-top: 16px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
}

.sample {
  color: var(--accent);
  font-weight: 600;
}