/* Robovoice — единая дизайн-система лендинга и админки.
   Vanilla CSS, системные шрифты, адаптив. */

:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #1a1d23;
  --muted: #6b7280;
  --border: #e2e5ea;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --ok-bg: #ecfdf5;  --ok-text: #047857;
  --err-bg: #fef2f2; --err-text: #b91c1c;
  --radius: 10px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; margin: 0 0 .8rem; }
h2 { font-size: 1.25rem; margin: 1.5rem 0 .6rem; }
code { background: var(--border); padding: 0 .3em; border-radius: 4px; }
pre { white-space: pre-wrap; }

/* --- каркас --- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .7rem 1.2rem; background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.topbar nav { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; }
.topbar nav a { color: var(--text); font-size: .95rem; }
.container { max-width: 1080px; margin: 0 auto; padding: 1.5rem 1.2rem 3rem; }
.footer {
  text-align: center; color: var(--muted); font-size: .85rem;
  padding: 1.5rem; border-top: 1px solid var(--border);
}

/* --- кнопки и формы --- */
.btn {
  display: inline-block; padding: .5rem 1rem; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface);
  font-size: .95rem; cursor: pointer; color: var(--text);
}
.btn:hover { border-color: var(--primary); text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: transparent; }
.btn-sm { padding: .25rem .6rem; font-size: .85rem; }
.btn-lg { padding: .8rem 1.6rem; font-size: 1.05rem; }
.link { background: none; border: none; color: var(--primary); cursor: pointer; font-size: .95rem; padding: 0; }

input[type=text], input[type=email], input[type=password], input[type=date],
select, textarea {
  width: 100%; padding: .5rem .7rem; border: 1px solid var(--border);
  border-radius: var(--radius); font: inherit; background: var(--surface);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--primary); outline-offset: 0; border-color: var(--primary);
}
textarea { min-height: 3.2rem; resize: vertical; }
label { display: block; margin-bottom: .8rem; font-size: .92rem; color: var(--muted); }
label input, label select, label textarea { margin-top: .25rem; color: var(--text); }

.row { display: flex; gap: .5rem; align-items: center; }
.row input { width: auto; flex: 1; }
.inline { display: inline; }
.form-grid { display: grid; gap: .6rem; margin-bottom: 1.2rem; }
@media (min-width: 720px) { .form-grid { grid-template-columns: 1fr 1fr 1fr auto; } }

/* --- карточки, таблицы --- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.2rem;
}
.table {
  width: 100%; border-collapse: collapse; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.table th, .table td { padding: .55rem .8rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.table thead th { background: var(--bg); font-size: .85rem; color: var(--muted); }
.table tr:last-child td { border-bottom: none; }
.inactive { opacity: .55; }
.muted { color: var(--muted); }
.scroll-x { overflow-x: auto; }

/* --- матрица цен --- */
.matrix th { white-space: nowrap; }
.cell { display: flex; gap: .3rem; align-items: center; }
.price-input { width: 6.5rem !important; flex: none !important; text-align: right; }
.check { display: inline-flex; align-items: center; margin: 0; font-size: .8rem; }
.check input { width: auto; margin-right: .15rem; }

/* --- flash --- */
.flash { padding: .6rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; }
.flash-ok { background: var(--ok-bg); color: var(--ok-text); }
.flash-err { background: var(--err-bg); color: var(--err-text); }

/* --- auth --- */
.auth-card {
  max-width: 420px; margin: 3rem auto; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem;
}
.auth-card h1 { text-align: center; }
.auth-card .btn { width: 100%; margin-top: .4rem; }
.auth-card .muted { text-align: center; margin-top: 1rem; }

/* --- лендинг --- */
.hero { text-align: center; padding: 3.5rem 0 2.5rem; }
.hero h1 { font-size: 2.2rem; max-width: 720px; margin: 0 auto .9rem; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; margin: 0 auto 1.6rem; }
.cta { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; }
.features {
  display: grid; gap: 1rem; margin: 2rem 0;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.features h3 { margin: 0 0 .4rem; }
.features p { margin: 0; color: var(--muted); font-size: .95rem; }
.how { text-align: center; padding: 1.5rem 0; }
.steps {
  text-align: left; max-width: 460px; margin: 1rem auto 1.5rem;
  display: grid; gap: .6rem; padding-left: 1.4rem;
}

/* --- реплики --- */
.prompts-form { max-width: 720px; }
.preview p { margin: .4rem 0; }

.filters label { margin: 0; }
.filters input, .filters select { width: auto; }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.6rem; }
  .container { padding: 1rem .8rem 2rem; }
  .table th, .table td { padding: .45rem .5rem; font-size: .9rem; }
}