:root { --blue:#0b6bff; --green:#25a244; --dark:#12233b; --light:#f4f6f9; }
* { box-sizing: border-box; margin: 0; padding: 0; }
.chat-toggle { position: fixed; right: 16px; bottom: 16px; width: 56px; height: 56px; border-radius: 50%; border: none; background: var(--blue); color: #fff; font-size: 1.5rem; cursor: pointer; box-shadow: 0 4px 12px #0004; z-index: 30; }
.chat-box { position: fixed; right: 16px; bottom: 84px; width: min(340px, calc(100vw - 32px)); height: 420px; background: #fff; border-radius: 12px; box-shadow: 0 6px 20px #0004; display: flex; flex-direction: column; overflow: hidden; z-index: 30; }
.chat-box[hidden] { display: none; }
.chat-head { background: var(--dark); color: #fff; padding: 12px; display: flex; justify-content: space-between; }
.chat-head button { background: none; border: none; color: #fff; font-size: 1rem; cursor: pointer; }
.chat-messages { flex: 1; padding: 12px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; background: var(--light); }
.msg { padding: 8px 12px; border-radius: 12px; max-width: 80%; font-size: .9rem; word-break: break-word; }
.msg.bot { background: #fff; align-self: flex-start; }
.msg.user { background: var(--blue); color: #fff; align-self: flex-end; }
.chat-input { display: flex; gap: 6px; padding: 8px; border-top: 1px solid #ddd; }
.chat-input input { flex: 1; padding: 10px; border: 1px solid #ccc; border-radius: 8px; }
.chat-input button { padding: 10px 14px; border: none; border-radius: 8px; background: var(--green); color: #fff; font-weight: 600; cursor: pointer; }
a { text-decoration: none; color: inherit; }

.header { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; background: #fff; position: sticky; top: 0; z-index: 10; box-shadow: 0 1px 4px #0002; }
.logo { font-weight: 700; font-size: 1.1rem; }
nav a { margin-left: 16px; }

.hero { background: var(--dark); color: #fff; text-align: center; padding: 48px 20px; }
.hero h1 { font-size: 1.7rem; margin-bottom: 10px; }
.hero p { margin-bottom: 20px; opacity: .85; }

.btn { display: inline-block; padding: 12px 20px; border-radius: 8px; font-weight: 600; text-align: center; color: #fff; }
.btn-primary, .btn-call { background: var(--blue); }
.btn-chat { background: var(--green); }

.section { padding: 28px 16px; }
.section h2 { margin-bottom: 16px; }
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
.card { background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 2px 8px #0002; }
.card img { width: 100%; height: 200px; object-fit: cover; display: block; }
.card-body { padding: 12px; }
.price { color: var(--blue); font-weight: 700; margin: 4px 0; }
.meta { font-size: .85rem; opacity: .7; }

.why { background: var(--light); display: grid; gap: 16px; }
.footer { text-align: center; padding: 24px; background: var(--dark); color: #fff; }



@media (min-width: 700px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .why { grid-template-columns: repeat(3, 1fr); }
  .hero h1 { font-size: 2.4rem; }
}

.filters { display: grid; gap: 8px; margin-bottom: 12px; }
.filters input, .filters select { padding: 10px; border: 1px solid #ccc; border-radius: 8px; font-size: 1rem; }
.main-img { width: 100%; max-height: 420px; object-fit: cover; border-radius: 10px; }
.thumbs { display: flex; gap: 8px; margin: 8px 0 16px; overflow-x: auto; }
.thumbs img { width: 80px; height: 60px; object-fit: cover; border-radius: 6px; cursor: pointer; }
.price.big { font-size: 1.5rem; }
.specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 16px 0; }
.specs div { background: var(--light); padding: 12px; border-radius: 8px; display: flex; flex-direction: column; }
.specs span { font-size: .8rem; opacity: .7; }
.actions { display: flex; gap: 10px; }
.actions .btn { flex: 1; }
@media (min-width: 700px) { .filters { grid-template-columns: 2fr 1fr 1fr; } }
.auth-box { max-width: 380px; margin: 40px auto; padding: 20px; background: var(--light); border-radius: 12px; }
.auth-box input { width: 100%; padding: 12px; margin: 6px 0 12px; border: 1px solid #ccc; border-radius: 8px; font-size: 1rem; }
.auth-box button { width: 100%; padding: 12px; border: none; border-radius: 8px; background: var(--blue); color: #fff; font-weight: 600; font-size: 1rem; cursor: pointer; }
.error { color: #c0392b; margin-top: 10px; }
.admin-form { display: grid; gap: 10px; max-width: 480px; }
.admin-form input, .admin-form textarea { padding: 10px; border: 1px solid #ccc; border-radius: 8px; font-size: 1rem; width: 100%; }
.admin-btn { padding: 12px; border: none; border-radius: 8px; background: var(--blue); color: #fff; font-weight: 600; cursor: pointer; }
.admin-btn.gray { background: #666; margin-top: 8px; }
.admin-btn.red { background: #c0392b; }
.admin-btn:disabled { opacity: .6; }
.admin-row { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid #0002; }
.admin-row img { width: 70px; height: 52px; object-fit: cover; border-radius: 6px; background: #ddd; }
.admin-row div { flex: 1; }