@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  --ink: #101828;
  --text: #243044;
  --muted: #667085;
  --soft: #f5f7fa;
  --surface: #ffffff;
  --line: #e3e8ef;
  --line-strong: #cfd8e3;
  --accent: #4aaee8;
  --accent-dark: #1677b7;
  --accent-ink: #0f4f7a;
  --accent-soft: #eef8ff;
  --accent-line: #b8e1f7;
  --brand-dark: #111827;
  --brand-graphite: #1f2937;
  --shadow-soft: 0 16px 40px rgba(16, 24, 40, 0.08);
  --shadow-card: 0 18px 42px rgba(16, 24, 40, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--soft);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0;
  background:
    linear-gradient(180deg, #ffffff 0, #f5f7fa 300px),
    var(--soft);
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--accent-dark);
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  align-items: center;
  gap: 24px;
  min-height: 92px;
  padding: 0 36px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}

.topbar::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  content: "";
  background: linear-gradient(90deg, #bdeaff, var(--accent), #ffffff);
}

.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  width: fit-content;
  color: var(--ink);
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.brand::before {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  color: #ffffff;
  font-size: 18px;
  font-weight: 900;
  content: "CM";
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
}

.tabs {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab-button {
  min-width: 116px;
  height: 44px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: #475467;
  font-size: 14px;
  font-weight: 750;
  white-space: nowrap;
  background: transparent;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.tab-button:hover {
  color: var(--ink);
  background: #f2f4f7;
}

.tab-button.is-active {
  border-color: var(--accent-line);
  color: var(--accent-ink);
  background: var(--accent-soft);
}

.tab-button:focus,
.details-button:focus,
.card-link:focus,
.send-button:focus,
.clear-chat-button:focus,
.primary-link:focus {
  outline: none;
}

.tab-button:focus-visible,
.details-button:focus-visible,
.card-link:focus-visible,
.send-button:focus-visible,
.clear-chat-button:focus-visible,
.primary-link:focus-visible {
  box-shadow: 0 0 0 4px rgba(74, 174, 232, 0.18);
}

.main {
  width: min(1240px, calc(100% - 40px));
  min-height: calc(100vh - 92px);
  margin: 0 auto;
  padding: 34px 0 64px;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.section-heading,
.chat-heading {
  max-width: 780px;
  margin: 0 0 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 820;
  line-height: 1.08;
}

.section-heading p:not(.eyebrow),
.chat-heading p:not(.eyebrow),
.about-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.catalog-count {
  display: inline-flex;
  margin-top: 18px;
  padding: 9px 12px;
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 800;
  background: var(--accent-soft);
}

.store-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.service-card {
  display: grid;
  min-height: 374px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 30px rgba(16, 24, 40, 0.06);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.service-card:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.provider-art {
  display: grid;
  place-items: center;
  min-height: 168px;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 35%, rgba(74, 174, 232, 0.16), transparent 36%),
    linear-gradient(180deg, #ffffff, #f3f5f8);
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 108px;
  height: 108px;
  border-radius: 8px;
  color: #ffffff;
  font-size: 26px;
  font-weight: 900;
  box-shadow: 0 18px 36px rgba(16, 24, 40, 0.18);
}

.provider-selectel {
  background: #089b8c;
}

.provider-t1-cloud {
  background: #4aaee8;
}

.provider-vk-cloud {
  background: #2676e6;
}

.provider-cloud-ru {
  background: #111827;
}

.provider-default {
  background: #344054;
}

.card-body {
  display: grid;
  align-content: start;
  padding: 22px 24px 24px;
}

.provider-name {
  margin: 0 0 7px;
  color: #7a8699;
  font-size: 12px;
  font-weight: 780;
}

.service-name {
  min-height: 52px;
  margin: 0;
  color: var(--ink);
  font-size: 20px;
  font-weight: 820;
  line-height: 1.3;
}

.service-description {
  display: -webkit-box;
  min-height: 48px;
  margin: 10px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 14px;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.meta-pill {
  max-width: 100%;
  padding: 6px 9px;
  border: 1px solid #d9e1ec;
  border-radius: 8px;
  color: #3f4d63;
  font-size: 12px;
  font-weight: 740;
  background: #f8fafc;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid #edf1f5;
}

.price-row span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.price-row strong {
  color: var(--ink);
  font-size: 14px;
  font-weight: 850;
  text-align: right;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.details-button,
.card-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border-radius: 8px;
  padding: 0 13px;
  font-size: 13px;
  font-weight: 850;
  text-decoration: none;
}

.details-button {
  border: 0;
  color: #ffffff;
  background: var(--accent-dark);
}

.details-button:hover {
  background: var(--accent-ink);
}

.card-link {
  border: 1px solid var(--accent-line);
  color: var(--accent-ink);
  background: var(--accent-soft);
}

.card-link:hover {
  color: #ffffff;
  background: var(--accent-dark);
}

.card-link.is-disabled {
  border-color: var(--line);
  color: #98a2b3;
  background: #f8fafc;
}

.empty-state,
.loading-state {
  grid-column: 1 / -1;
  padding: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
  background: #ffffff;
}

.empty-state.compact {
  padding: 18px;
  text-align: left;
}

.chat-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  max-width: 980px;
  margin: 0 auto;
}

.chat-heading {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.chat-window {
  display: grid;
  grid-template-rows: auto minmax(420px, 1fr) auto;
  min-height: 720px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-soft);
}

.chat-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.chat-toolbar span {
  display: block;
  color: var(--ink);
  font-size: 15px;
  font-weight: 820;
}

.chat-toolbar small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.clear-chat-button {
  min-height: 38px;
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 800;
  background: var(--accent-soft);
}

.clear-chat-button:hover {
  color: #ffffff;
  background: var(--accent-dark);
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
  padding: 26px 24px;
  overflow-y: auto;
  background:
    linear-gradient(180deg, #ffffff 0, #f7fbfe 100%),
    #f7fbfe;
}

.message {
  width: auto;
  max-width: min(74%, 720px);
  padding: 12px 15px;
  border-radius: 18px;
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message.assistant {
  align-self: flex-start;
  max-width: min(82%, 780px);
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  border-bottom-left-radius: 5px;
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(16, 24, 40, 0.045);
}

.message.assistant a {
  color: var(--accent-dark);
  font-weight: 760;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}

.message.search-answer {
  width: 100%;
  max-width: 100%;
  padding: 24px;
  overflow-x: auto;
  border-color: var(--line-strong);
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.65;
  white-space: normal;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(16, 24, 40, 0.06);
}

.message.clarification-answer {
  max-width: min(82%, 780px);
  white-space: normal;
}

.message.clarification-answer .assistant-block {
  padding: 0;
  border: 0;
  background: transparent;
}

.assistant-block p,
.answer-section p,
.recommendation-card p {
  margin: 0;
}

.plain-message {
  display: grid;
  gap: 9px;
  padding: 0;
  line-height: 1.58;
}

.plain-message p {
  margin: 0;
}

.assistant-list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding-left: 22px;
}

.answer-layout {
  display: grid;
  gap: 22px;
}

.answer-section {
  display: grid;
  gap: 12px;
}

.answer-section h2,
.answer-section h3 {
  margin: 0;
  color: var(--ink);
  line-height: 1.2;
}

.answer-section h2 {
  font-size: 22px;
}

.answer-section h3 {
  font-size: 16px;
}

.answer-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.answer-chips span {
  padding: 7px 10px;
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 760;
  background: var(--accent-soft);
}

.component-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 22px;
}

.recommendation-list {
  display: grid;
  gap: 14px;
}

.bundle-list {
  display: grid;
  gap: 18px;
}

.bundle-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfdff;
}

.bundle-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.bundle-head span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 34px;
  border-radius: 10px;
  color: #ffffff;
  font-weight: 900;
  background: var(--accent-dark);
}

.bundle-head h4 {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  font-weight: 850;
  line-height: 1.4;
}

.bundle-items {
  display: grid;
  gap: 10px;
}

.recommendation-card {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
}

.recommendation-card.is-compact {
  padding: 14px;
  background: #ffffff;
}

.recommendation-topline {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
}

.recommendation-topline span {
  padding: 5px 8px;
  border-radius: 8px;
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 850;
  background: var(--accent-soft);
}

.recommendation-topline strong {
  color: var(--ink);
  font-size: 16px;
}

.recommendation-role {
  color: var(--muted);
}

.recommendation-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.recommendation-meta div {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.recommendation-meta dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.recommendation-meta dd {
  margin: 3px 0 0;
  color: var(--ink);
  font-weight: 780;
}

.recommendation-pricing {
  display: grid;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--accent-line);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  background: #ffffff;
}

.rank-reason {
  padding: 10px 12px;
  border-left: 3px solid var(--accent);
  color: var(--text);
  background: #ffffff;
}

.message.user {
  max-width: min(62%, 620px);
  align-self: flex-end;
  color: #ffffff;
  background: var(--accent-dark);
  border-bottom-right-radius: 5px;
  box-shadow: 0 10px 24px rgba(22, 119, 183, 0.18);
}

.prompt-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 48px;
  gap: 14px;
  padding: 18px;
  border-top: 1px solid var(--line);
  background: #ffffff;
}

.prompt-form textarea {
  width: 100%;
  min-height: 58px;
  max-height: 180px;
  resize: vertical;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 15px 16px;
  color: var(--ink);
  outline: none;
  background: #ffffff;
}

.prompt-form textarea::placeholder {
  color: #98a2b3;
}

.prompt-form textarea:focus {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 4px rgba(74, 174, 232, 0.16);
}

.send-button {
  align-self: end;
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  color: #ffffff;
  font-size: 22px;
  font-weight: 900;
  background: var(--accent-dark);
  box-shadow: 0 12px 24px rgba(22, 119, 183, 0.24);
}

.send-button:hover {
  background: var(--accent-ink);
}

.send-button:disabled {
  cursor: wait;
  opacity: 0.55;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 24px;
  align-items: stretch;
}

.about-copy,
.about-facts {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow-soft);
}

.about-copy {
  padding: 42px;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 24px;
  padding: 0 18px;
  border-radius: 8px;
  color: #ffffff;
  font-weight: 850;
  text-decoration: none;
  background: var(--accent-dark);
}

.primary-link:hover {
  background: var(--accent-ink);
}

.about-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  overflow: hidden;
  background: var(--line);
}

.fact {
  display: grid;
  gap: 8px;
  padding: 28px;
  background: #ffffff;
}

.fact span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.fact strong {
  color: var(--ink);
  font-size: 24px;
  font-weight: 850;
}

.service-dialog {
  width: min(720px, calc(100% - 28px));
  max-height: min(760px, calc(100vh - 28px));
  overflow: auto;
  border: 0;
  border-radius: 8px;
  padding: 0;
  color: var(--ink);
  box-shadow: 0 28px 90px rgba(16, 24, 40, 0.28);
}

.service-dialog::backdrop {
  background: rgba(17, 24, 39, 0.56);
}

.dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  color: #475467;
  font-size: 24px;
  background: #eef2f6;
}

.dialog-card {
  padding: 34px;
}

.dialog-card h2 {
  max-width: 560px;
  margin: 0;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.2;
}

.dialog-card p {
  color: var(--muted);
}

.pricing-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.pricing-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.pricing-item span {
  color: var(--muted);
  font-size: 13px;
}

.pricing-item strong {
  text-align: right;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 18px 18px 0;
  }

  .brand {
    font-size: 38px;
  }

  .tabs {
    justify-content: stretch;
  }

  .tab-button {
    min-width: 0;
    flex: 1;
  }

  .store-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .chat-window {
    min-height: 640px;
  }
}

@media (max-width: 640px) {
  .main {
    width: min(100% - 20px, 1240px);
    padding-top: 24px;
  }

  .brand {
    font-size: 32px;
  }

  .brand::before {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  h1 {
    font-size: 28px;
  }

  .tab-button {
    height: 44px;
    font-size: 13px;
  }

  .service-card {
    min-height: 0;
  }

  .provider-art {
    min-height: 150px;
  }

  .logo-mark {
    width: 96px;
    height: 96px;
  }

  .chat-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .messages {
    padding: 20px 14px;
  }

  .message {
    max-width: 94%;
  }

  .message.search-answer {
    padding: 18px;
  }

  .recommendation-meta,
  .recommendation-topline {
    grid-template-columns: 1fr;
  }

  .price-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .price-row strong {
    text-align: left;
    overflow-wrap: anywhere;
  }

  .prompt-form {
    grid-template-columns: minmax(0, 1fr) 44px;
    padding: 14px;
  }

  .send-button {
    width: 44px;
    height: 44px;
  }

  .about-copy,
  .dialog-card {
    padding: 26px;
  }
}