/* ACM Systems — общие стили сайта. Палитра Brand Kit: graphite, teal, ivory, mint, slate. */

@font-face {
  font-family: "Golos Text";
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url("../fonts/golos-text-cyrillic.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Golos Text";
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url("../fonts/golos-text-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Golos Text";
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url("../fonts/golos-text-rub.woff2") format("woff2");
  unicode-range: U+20BD;
}
@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/geist-mono-cyrillic.woff2") format("woff2");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}
@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/geist-mono-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/geist-mono-rub.woff2") format("woff2");
  unicode-range: U+20BD;
}

:root {
  --bg: #f5f3ed;
  --bg-2: #ebe9e1;
  --surface: #ffffff;
  --surface-2: #f8f7f2;
  --ink: #132b32;
  --ink-2: #475b60;
  --line: rgba(19, 43, 50, 0.14);
  --line-strong: rgba(19, 43, 50, 0.34);
  --accent-text: #00675d;
  --accent-bg: #007f73;
  --accent-bg-hover: #006b61;
  --on-accent: #ffffff;
  --accent-soft: #c8e9dd;
  --on-accent-soft: #0b4a43;
  --warn-text: #8a4b00;
  --warn-line: rgba(138, 75, 0, 0.5);
  --card-bg: #132b32;
  --card-ink: #f5f3ed;
  --card-ink-2: #b7c8c9;
  --card-line: rgba(245, 243, 237, 0.24);
  --focus: #007f73;
  --shadow: 0 28px 64px -36px rgba(19, 43, 50, 0.5);
  --font-sans: "Golos Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c1d22;
    --bg-2: #09171b;
    --surface: #11272d;
    --surface-2: #0e2227;
    --ink: #eef1ec;
    --ink-2: #a9bdbe;
    --line: rgba(238, 241, 236, 0.13);
    --line-strong: rgba(238, 241, 236, 0.32);
    --accent-text: #62d1c0;
    --accent-bg: #007f73;
    --accent-bg-hover: #00968a;
    --on-accent: #ffffff;
    --accent-soft: #17433f;
    --on-accent-soft: #c8e9dd;
    --warn-text: #e8b068;
    --warn-line: rgba(232, 176, 104, 0.55);
    --card-bg: #f5f3ed;
    --card-ink: #132b32;
    --card-ink-2: #475b60;
    --card-line: rgba(19, 43, 50, 0.22);
    --focus: #62d1c0;
    --shadow: 0 32px 80px -32px rgba(0, 0, 0, 0.75);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0c1d22;
  --bg-2: #09171b;
  --surface: #11272d;
  --surface-2: #0e2227;
  --ink: #eef1ec;
  --ink-2: #a9bdbe;
  --line: rgba(238, 241, 236, 0.13);
  --line-strong: rgba(238, 241, 236, 0.32);
  --accent-text: #62d1c0;
  --accent-bg: #007f73;
  --accent-bg-hover: #00968a;
  --on-accent: #ffffff;
  --accent-soft: #17433f;
  --on-accent-soft: #c8e9dd;
  --warn-text: #e8b068;
  --warn-line: rgba(232, 176, 104, 0.55);
  --card-bg: #f5f3ed;
  --card-ink: #132b32;
  --card-ink-2: #475b60;
  --card-line: rgba(19, 43, 50, 0.22);
  --focus: #62d1c0;
  --shadow: 0 32px 80px -32px rgba(0, 0, 0, 0.75);
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0s !important;
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.55 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.12;
  font-weight: 400;
  text-wrap: balance;
}

p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

a {
  color: var(--accent-text);
  text-underline-offset: 0.18em;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Числа набираются Golos Text с табличными цифрами: у моноширинной запятой
   слишком широкое поле, «31,8» распадается на части. */
.mono {
  font-variant-numeric: tabular-nums;
}

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

.no-js [data-js-only] {
  display: none !important;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -200px;
  z-index: 50;
  padding: 12px 16px;
  border-radius: 8px;
  border: 2px solid var(--focus);
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.kicker {
  font: 400 0.8125rem/1.3 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-text);
}

/* ---------- кнопки и метки ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  font: 600 1rem/1.2 var(--font-sans);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.btn-primary {
  background: var(--accent-bg);
  color: var(--on-accent);
}

.btn-primary:hover {
  background: var(--accent-bg-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

.btn-secondary:hover {
  border-color: var(--ink);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-small {
  min-height: 44px;
  padding: 0 14px;
  font-size: 0.9375rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--line-strong);
  font: 600 0.75rem/1.25 var(--font-mono);
  color: var(--ink-2);
  white-space: normal;
}

.badge-sample {
  color: var(--warn-text);
  border-color: var(--warn-line);
}

.badge-demo {
  color: var(--accent-text);
  border-color: currentColor;
}

/* ---------- шапка ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  min-height: 76px;
  padding-block: 10px;
}

.brand {
  display: inline-flex;
  flex: none;
  margin-inline-end: auto;
  border-radius: 6px;
}

.brand img {
  display: block;
  width: 168px;
  height: auto;
}

.logo-dark {
  display: none !important;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light {
    display: none !important;
  }
  :root:not([data-theme="light"]) .logo-dark {
    display: block !important;
  }
}

:root[data-theme="dark"] .logo-light {
  display: none !important;
}

:root[data-theme="dark"] .logo-dark {
  display: block !important;
}

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

.route,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  font: 600 0.9375rem/1.2 var(--font-sans);
  text-decoration: none;
  cursor: pointer;
}

.route:hover,
.theme-toggle:hover {
  border-color: var(--ink);
}

.route[aria-current="true"] {
  background: var(--accent-soft);
  border-color: var(--accent-text);
  color: var(--on-accent-soft);
}

.theme-toggle .theme-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid currentColor;
  box-shadow: inset -6px 0 0 0 currentColor;
  flex: none;
}

@media (max-width: 640px) {
  .brand img {
    width: 160px;
  }
  .routes {
    order: 3;
    width: 100%;
  }
  .route {
    flex: 1 1 auto;
    justify-content: center;
    padding: 0 12px;
    font-size: 0.875rem;
  }
  .theme-toggle .theme-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .theme-toggle {
    padding: 0 13px;
  }
}

/* ---------- первый экран ---------- */

.hero {
  --hero-scrim-solid: rgba(245, 243, 237, 0.95);
  --hero-scrim-soft: rgba(245, 243, 237, 0.5);
  --hero-scrim-edge: rgba(245, 243, 237, 0.12);
  position: relative;
  isolation: isolate;
  padding-block: clamp(20px, 2.4vw, 32px) clamp(40px, 5vw, 64px);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero {
    --hero-scrim-solid: rgba(12, 29, 34, 0.95);
    --hero-scrim-soft: rgba(12, 29, 34, 0.5);
    --hero-scrim-edge: rgba(12, 29, 34, 0.12);
  }
}

:root[data-theme="dark"] .hero {
  --hero-scrim-solid: rgba(12, 29, 34, 0.95);
  --hero-scrim-soft: rgba(12, 29, 34, 0.5);
  --hero-scrim-edge: rgba(12, 29, 34, 0.12);
}

/* Гостиничный фон V11 (ИИ-изображение, разрешено к публикации 15.09.2026).
   Только на широком экране: телефон фото не скачивает. Под колонкой текста подложка
   не прозрачнее 0,95 — минимум по замеру контраста 0,87. */
.hero-media {
  display: none;
}

@media (min-width: 961px) {
  .hero-media {
    display: block;
    position: absolute;
    inset: 0;
    z-index: -1;
    background-color: var(--bg);
    background-image: url("../images/hospitality-context-desktop.webp");
    background-image: image-set(
      url("../images/hospitality-context-desktop.avif") type("image/avif"),
      url("../images/hospitality-context-desktop.webp") type("image/webp")
    );
    background-size: cover;
    background-position: 65% 55%;
  }

  .hero-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(0deg, var(--bg) 0%, transparent 16%),
      linear-gradient(90deg, var(--hero-scrim-solid) 0%, var(--hero-scrim-solid) 43%, var(--hero-scrim-soft) 62%, var(--hero-scrim-edge) 100%);
  }
}

.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 28px clamp(32px, 3.6vw, 56px);
  align-items: center;
}

.hero-copy {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.hero h1 {
  font-size: clamp(2.5rem, 1.2rem + 3vw, 4rem);
  line-height: 1;
  letter-spacing: -0.035em;
  font-weight: 400;
}

.hero h1 span {
  display: block;
  color: var(--accent-text);
}

.lead {
  font-size: clamp(1.0625rem, 0.98rem + 0.35vw, 1.25rem);
  line-height: 1.5;
  max-width: 40ch;
  color: var(--ink-2);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
}

.hero-actions .btn-primary {
  min-height: 52px;
  padding-inline: 24px;
}

.hero-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.hero-contacts a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 600;
}

@media (max-width: 960px) {
  .hero .wrap {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- панель-иллюстрация ---------- */

.panel {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
}

.panel-where {
  font: 400 0.8125rem/1.3 var(--font-mono);
  color: var(--ink-2);
}

.panel-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.pq {
  display: grid;
  gap: 10px;
  align-content: start;
  min-width: 0;
  padding: 20px 22px 16px;
}

.pq:first-child {
  grid-column: 1 / -1;
  border-bottom: 1px solid var(--line);
}

.pq + .pq + .pq {
  border-inline-start: 1px solid var(--line);
}

.pq-label {
  font: 400 0.75rem/1.3 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.pq-title {
  font-size: 1.1875rem;
  line-height: 1.3;
  text-wrap: balance;
}

.pq-metric {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px 36px;
}

.pq-value {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.pq-value .mono {
  font-size: clamp(2.75rem, 2rem + 2vw, 3.75rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.pq-unit {
  color: var(--ink-2);
}

.pq-dl {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
  padding-bottom: 4px;
}

.pq-dl dt {
  font-size: 0.8125rem;
  color: var(--ink-2);
}

.pq-dl dd {
  font-size: 1.375rem;
  line-height: 1.2;
}

.pq-dl div:last-child dd {
  color: var(--warn-text);
}

.pq-sources {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}

.pq-sources li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 12px;
  align-items: baseline;
}

.pq-source {
  font-weight: 600;
}

.pq-sources .mono {
  text-align: right;
  font-size: 1.0625rem;
}

.pq-sources small {
  grid-column: 1 / -1;
  color: var(--ink-2);
  font-size: 0.875rem;
}

.pq-action {
  background: var(--surface-2);
}

.pq-note {
  font-size: 0.9375rem;
  color: var(--ink-2);
}

.pq-link {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  min-height: 44px;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 0.22em;
}

.pq-link:hover {
  text-decoration-color: currentColor;
}

@media (max-width: 600px) {
  .panel-body {
    grid-template-columns: minmax(0, 1fr);
  }
  .pq {
    padding: 16px 16px 12px;
  }
  .pq + .pq {
    border-top: 1px solid var(--line);
  }
  .pq:first-child {
    border-bottom: 0;
  }
  .pq + .pq + .pq {
    border-inline-start: 0;
  }
}

/* ---------- секции ---------- */

.section {
  padding-block: clamp(56px, 8vw, 112px);
}

.section-alt {
  background: var(--bg-2);
}

.section-head {
  display: grid;
  gap: 12px;
  max-width: 780px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.section-head h2 {
  font-size: clamp(1.875rem, 1.2rem + 2vw, 2.75rem);
  letter-spacing: -0.025em;
  font-weight: 400;
}

.section-head p:not(.kicker) {
  color: var(--ink-2);
  font-size: 1.125rem;
  max-width: 64ch;
}

.section-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.section-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 600;
}

.note {
  font-size: 0.875rem;
  color: var(--ink-2);
  max-width: 72ch;
}

/* ---------- вендорам ---------- */

.vflow-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1.15fr) 48px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.vnode {
  display: grid;
  gap: 6px;
  align-content: center;
  height: 100%;
  padding: 20px 22px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
}

.vnode-who {
  font: 400 0.75rem/1.3 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.vnode-what {
  font-size: 1.25rem;
  line-height: 1.3;
}

.vnode-acm {
  background: var(--card-bg);
  border-color: var(--card-bg);
  color: var(--card-ink);
}

.vnode-acm .vnode-who {
  color: var(--card-ink-2);
}

.vflow-arrow {
  width: 48px;
  height: 16px;
  fill: none;
  stroke: var(--accent-text);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.vpoints {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px clamp(24px, 3vw, 40px);
  margin-top: clamp(28px, 3.5vw, 40px);
}

.vpoints li {
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
  font-size: 1.0625rem;
}

.vnote {
  margin-top: 24px;
  color: var(--ink-2);
}

.vactions {
  margin-top: 20px;
}

@media (max-width: 860px) {
  .vflow-row {
    grid-template-columns: minmax(0, 1fr);
    justify-items: stretch;
    gap: 6px;
  }
  .vflow-arrow {
    justify-self: center;
    transform: rotate(90deg);
    width: 32px;
    height: 32px;
  }
  .vpoints {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- контакты ---------- */

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.contact {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: clamp(20px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.contact h3 {
  font-size: 1.5rem;
}

.contact .btn-primary {
  justify-self: start;
}

:root[data-audience="owner"] .contact[data-for="owner"],
:root[data-audience="vendor"] .contact[data-for="vendor"] {
  border-color: var(--accent-text);
  box-shadow: 0 0 0 1px var(--accent-text);
}

.email-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.email {
  font: 500 1rem/1.3 var(--font-mono);
  overflow-wrap: anywhere;
}

.copy-status {
  flex-basis: 100%;
  min-height: 1.3em;
  font-size: 0.875rem;
  color: var(--accent-text);
}

@media (max-width: 760px) {
  .contacts-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- подвал ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 0.9375rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 24px 32px;
}

/* ---------- отдельная страница схемы ---------- */

.page-head {
  padding-block: clamp(28px, 4vw, 48px) clamp(20px, 3vw, 32px);
}

.page-head .wrap {
  display: grid;
  gap: 12px;
}

.page-head h1 {
  font-size: clamp(2rem, 1.3rem + 2.2vw, 3rem);
  letter-spacing: -0.03em;
  font-weight: 400;
  max-width: 22ch;
}

.page-head p:not(.kicker) {
  color: var(--ink-2);
  font-size: 1.125rem;
  max-width: 64ch;
}