/* Квантум — global styles. Design tokens: docs/design/README.md.
   Page markup keeps the design's inline styles (they are the spec); this file holds what inline styles can't:
   fonts, hover/focus states, animations, responsive switches and small shared components. */

@font-face { font-family: Onest; src: url("../fonts/Onest-var.d68fc95abf03.woff") format("woff"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: Unbounded; src: url("../fonts/Unbounded-var.8dca68955b2e.woff") format("woff"); font-weight: 200 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("../fonts/JetBrainsMono-var.c516eda1118d.woff") format("woff"); font-weight: 100 800; font-display: swap; }

:root {
  --ink: #0B0E14;
  --night: #05080C;
  --night-2: #151A23;
  --paper: #F4F5F2;
  --white: #FFFFFF;
  --muted: #5A616C;
  --muted-dark: #9AA3B2;
  --text-dark: #E7EAF0;
  --accent: #7FBEE8;
  --accent-soft: #EAF4FB;
  --accent-deep: #0B3A5C;
  --link: #2F5BFF;
  --line: #DADDD6;
  --line-2: #E3E6E0;
  --field-border: #C9CDC5;
  --field-bg: #F9FAF8;
  --placeholder: #737A85;

  --font-display: Unbounded, "Arial Black", sans-serif;
  --font-body: Onest, "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --radius-s: 10px;
  --radius-m: 14px;
  --radius-l: 18px;
  --container: 1680px;
  --gutter: clamp(24px, 4vw, 72px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.5 var(--font-body); }
h1, h2, h3, p { text-wrap: pretty; }
a { color: var(--ink); -webkit-tap-highlight-color: transparent; }
a:hover { color: var(--link); }
button { -webkit-tap-highlight-color: transparent; }
input::placeholder, textarea::placeholder { color: var(--placeholder); }
summary { cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; }
.kv-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.kv-skip { position: absolute; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; border-radius: 10px; background: var(--white); color: var(--ink); font-weight: 700; }
.kv-skip:focus { top: 12px; }

/* links on dark backgrounds */
.kv-nav a { color: var(--text-dark); text-decoration: none; }
.kv-nav a:hover { color: var(--accent); }
.kv-foot a { color: #B8C0CC; text-decoration: none; }
.kv-foot a:hover { color: var(--white); }

/* hover states from the design */
.kv-card, .kv-tile, .kv-pc, .kv-dir { transition: border-color .15s, transform .15s; }
.kv-card:hover, .kv-pc:hover { border-color: var(--ink) !important; }
.kv-tile:hover { border-color: var(--ink) !important; transform: translateY(-2px); }
.kv-dir:hover { border-color: var(--accent) !important; }
.kv-row:hover { background: var(--field-bg); }

/* animated microchip */
@keyframes kvHue { 0% { filter: hue-rotate(0deg) saturate(1); } 50% { filter: hue-rotate(45deg) saturate(1.3); } 100% { filter: hue-rotate(-35deg) saturate(1.1); } }
.kv-chip-art { animation: kvHue 9s ease-in-out infinite alternate; }
@keyframes kvFlow { from { stroke-dashoffset: 0; } to { stroke-dashoffset: -520; } }
.kv-pulse { stroke-dasharray: 28 492; animation: kvFlow 4.5s linear infinite; }
@keyframes kvSweep { 0% { transform: translateX(-900px); } 60%, 100% { transform: translateX(900px); } }
.kv-sweep { animation: kvSweep 7s ease-in-out infinite; }
@keyframes kvBlink { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }
.kv-via { animation: kvBlink 3s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) {
  .kv-chip-art, .kv-pulse, .kv-sweep, .kv-via { animation: none; }
  .kv-tile:hover { transform: none; }
}

/* horizontal rails (mobile) */
.kv-rail { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.kv-rail::-webkit-scrollbar { display: none; }
.kv-rail > * { flex: none; }

/* ---------- responsive switches ---------- */
@media (max-width: 1599px) { .kv-wide-only { display: none !important; } }
@media (max-width: 1499px) { .kv-nav { column-gap: 20px !important; } }
@media (max-width: 1379px) { .kv-nav-secondary { display: none !important; } }
.kv-mob-only { display: none !important; }
@media (max-width: 767px) {
  .kv-desk-only { display: none !important; }
  .kv-mob-only { display: revert !important; }
  .kv-mob-flex { display: flex !important; }
  body.kv-has-tabbar { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  .kv-hero-pad { padding-top: 32px !important; padding-bottom: 56px !important; }
  .kv-title-pad { padding-top: 24px !important; padding-bottom: 56px !important; }
  .kv-section-pad { padding-top: 64px !important; }
  .kv-rfq { bottom: calc(80px + env(safe-area-inset-bottom)) !important; }
  .kv-cookie { left: 8px !important; right: 8px !important; bottom: calc(80px + env(safe-area-inset-bottom)) !important; }
  .kv-cookie section { width: 100% !important; }
  .kv-cookie button { flex: 1 1 100% !important; }
}

/* mobile "Ещё" sheet */
.kv-sheet[hidden] { display: none !important; }

/* tabs (product, calculator) */
.kv-tab[aria-selected=true] { font-weight: 700 !important; color: var(--ink) !important; box-shadow: inset 0 -3px 0 var(--link); }
.kv-pill[aria-selected=true], .kv-pill[aria-current=page] { background: var(--ink) !important; color: var(--white) !important; border-color: var(--ink) !important; }
.kv-pill-dark[aria-current=page] { background: var(--white) !important; color: var(--ink) !important; border-color: var(--white) !important; }
.kv-pick[aria-pressed=true] { background: var(--ink) !important; color: var(--white) !important; border-color: var(--ink) !important; }
.kv-pc[data-picked=true] { border: 2px solid var(--link) !important; }

/* forms */
.kv-form-msg { padding: 12px 16px; border-radius: 10px; font-weight: 600; }
.kv-form-msg--ok { background: #E7F6EC; color: #0E5A2B; }
.kv-form-msg--err { background: #FCEBEB; color: #8A1C1C; }
.kv-hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- shared UI (calculator etc.) ---------- */
.kv-mono { font-family: var(--font-mono); }
.kv-muted { color: var(--muted); }
.kv-small { font-size: 13px; }
.kv-strong { font-weight: 700; }
.kv-eyebrow, .kv-label { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; color: var(--muted); }
.kv-error { color: #A11A1A; font-weight: 600; }
.kv-warning { padding: 10px 14px; border-radius: var(--radius-s); background: var(--accent-soft); color: var(--accent-deep); }
.kv-panel { background: var(--white); border: 1px solid var(--line); border-radius: 20px; padding: 28px; }
.kv-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border: 0; border-radius: var(--radius-s); font: 700 16px/1 var(--font-body); text-decoration: none; cursor: pointer; }
.kv-btn--accent { background: var(--accent); color: var(--ink); }
.kv-btn--accent:hover { color: var(--ink); filter: brightness(1.05); }
.kv-btn--lg { min-height: 58px; font-size: 18px; border-radius: 12px; }
.kv-btn:disabled { opacity: .6; cursor: progress; }
.kv-field { display: flex; flex-direction: column; gap: 8px; min-width: 0; flex: 1 1 120px; }
.kv-field--grow { flex: 3 1 220px; }
.kv-field label { font-size: 14px; font-weight: 600; }
.kv-field input[type=text], .kv-field textarea { min-height: 54px; padding: 0 16px; border: 1px solid var(--field-border); border-radius: var(--radius-s); background: var(--field-bg); font-size: 17px; color: var(--ink); }
.kv-field textarea { padding: 14px 16px; font-size: 15px; resize: vertical; }
.kv-fields-row { display: flex; flex-wrap: wrap; gap: 14px; }
.kv-upload { padding: 14px 16px; border: 1px dashed #A8AEB6; border-radius: var(--radius-s); margin-top: 12px; }
.kv-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; padding: 4px; background: #F0F1EE; border-radius: 12px; }
.kv-tabs button { min-height: 44px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font: 600 15px var(--font-body); cursor: pointer; }
.kv-tabs button[aria-selected=true] { background: var(--white); color: var(--ink); font-weight: 700; box-shadow: 0 1px 3px rgba(5,8,12,.12); }
.kv-table-wrap { overflow-x: auto; border: 1px solid var(--line-2); border-radius: 12px; }
.kv-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 15px; }
.kv-table th { padding: 12px 16px; background: var(--paper); text-align: left; font: 500 12px var(--font-mono); letter-spacing: .06em; color: var(--muted); }
.kv-table td { padding: 14px 16px; border-top: 1px solid var(--line-2); vertical-align: top; }
.kv-table .kv-num { text-align: right; white-space: nowrap; }
.kv-offers { display: none; }
@media (max-width: 767px) {
  .kv-table-wrap { display: none; }
  .kv-offers { display: flex; flex-direction: column; gap: 10px; }
}
.kv-offer { padding: 16px; border: 1px solid var(--line-2); border-radius: 14px; display: flex; flex-direction: column; gap: 8px; }
.kv-offer__top { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.kv-offer__sum { font: 700 20px var(--font-body); }
.kv-offer__meta { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 14px; color: var(--muted); }

/* calculator page body (header comes from the site header partial) */
.kv-calc__work { display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-start; }
.kv-calc__form { flex: 1 1 420px; min-width: 0; display: flex; flex-direction: column; gap: 20px; box-shadow: 0 24px 60px rgba(5,8,12,.14); }
.kv-calc__results { flex: 999 1 560px; min-width: 0; display: flex; flex-direction: column; gap: 20px; box-shadow: 0 24px 60px rgba(5,8,12,.08); }
.kv-calc__results-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: center; }
.kv-calc__results-head h2 { margin: 0; font-size: 20px; }
.kv-calc__part { display: flex; flex-direction: column; gap: 10px; }
.kv-calc__part + .kv-calc__part { padding-top: 16px; border-top: 1px solid var(--line-2); }
.kv-calc__part h3 { margin: 0; font-size: 16px; }
.kv-calc__cta { display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: center; justify-content: space-between; padding: 18px 20px; border-radius: 14px; background: var(--night); color: var(--text-dark); }
.kv-calc__cta div { display: flex; flex-direction: column; gap: 2px; flex: 1 1 280px; }
.kv-calc__cta strong { color: var(--white); }
.kv-calc__cta span { font-size: 14px; color: #B8C0CC; }

/* text pages (oferta, privacy) */
.kv-prose { max-width: 820px; font-size: 17px; color: #3A404A; }
.kv-prose h2 { font: 700 22px/1.3 var(--font-body); color: var(--ink); margin: 32px 0 12px; }
.kv-prose p, .kv-prose li { margin: 0 0 12px; }

/* CBR CNY rate: chip in the dark utility bar + card in the calculator */
.kv-cbr { display: inline-flex; gap: 8px; align-items: center; padding: 3px 10px 3px 4px; border-radius: 999px; border: 1px solid rgba(127,190,232,0.35); background: rgba(127,190,232,0.08); font-family: var(--font-mono); font-size: 12px; color: #C9D0DB; white-space: nowrap; }
.kv-cbr__label { padding: 2px 8px; border-radius: 999px; background: #7FBEE8; color: #0B0E14; font-weight: 700; letter-spacing: 0.04em; }
.kv-cbr__value { color: #FFFFFF; font-weight: 600; font-size: 13px; }
.kv-cbr__date { color: #9AA3B2; }
.kv-cbr__delta { font-family: var(--font-mono); font-size: 12px; font-weight: 600; padding: 2px 7px; border-radius: 6px; white-space: nowrap; }
.kv-cbr__delta--up { color: #7EE2A8; background: rgba(46,160,90,0.16); }
.kv-cbr__delta--down { color: #FF9A9A; background: rgba(220,70,70,0.16); }
.kv-cbr-card { display: flex; gap: 12px; align-items: center; justify-content: space-between; padding: 14px 16px; border-radius: 12px; background: #0B0E14; color: #E7EAF0; }
.kv-cbr-card__label { font-size: 12px; color: #9AA3B2; }
.kv-cbr-card__value { font-family: var(--font-mono); font-size: 20px; font-weight: 600; color: #FFFFFF; }
.kv-sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }