/* ==========================================================================
   GSG — дизайн-система
   Светлая основа, архитектурная серо-стальная гамма, оранжевый акцент точечно.
   Заголовки — PT Serif, интерфейс — Manrope.
   ========================================================================== */

:root {
  color-scheme: light;

  /* Бренд */
  --color-primary: #023152;
  --color-primary-hover: #06466b;
  --color-accent: #f77a08;
  --color-accent-hover: #e06c04;
  --color-accent-light: #f8b626;
  --color-accent-soft: #fdf1e3;

  /* Архитектура */
  --color-graphite: #343d47;
  --color-steel-dark: #444c58;
  --color-steel: #6b7480;
  --color-steel-light: #858f9b;
  --color-silver: #a5aeb8;
  --color-border: #c5cbd3;
  --color-border-soft: #e2e4ea;

  /* Поверхности */
  --color-background: #f9fbf7;
  --color-background-muted: #eef1f6;
  --color-surface: #ffffff;
  --color-surface-alt: #f2f4f8;

  /* Текст */
  --color-text: #023152;
  --color-text-secondary: #6b7480;
  --color-text-inverse: #f9fbf7;

  /* Состояния */
  --color-success: #1e7a4b;
  --color-success-soft: #e8f4ed;
  --color-danger: #b3261e;

  /* Геометрия */
  --radius-card: 20px;
  --radius-button: 10px;
  --radius-input: 10px;
  --radius-chip: 999px;

  --shadow-card: 0 12px 32px rgba(2, 49, 82, 0.10);
  --shadow-soft: 0 2px 8px rgba(2, 49, 82, 0.06);

  --font-heading: "PT Serif", Georgia, "Times New Roman", serif;
  --font-body: "Manrope", "Helvetica Neue", Arial, sans-serif;

  --header-bg: rgba(249, 251, 247, 0.92);
  --header-border: #e2e4ea;

  --wrap: 1200px;
}

/* Тёмная тема — альтернатива; переключатель Дмитрия работает как прежде */
[data-theme="dark"] {
  color-scheme: dark;

  --color-primary: #0e2e49;
  --color-primary-hover: #14415f;
  --color-accent: #f88f2c;
  --color-accent-hover: #ffa445;
  --color-accent-soft: #2a1d10;

  --color-border: #2b3a4a;
  --color-border-soft: #22303e;

  --color-background: #0d1722;
  --color-background-muted: #111d2a;
  --color-surface: #13202e;
  --color-surface-alt: #182738;

  --color-text: #eaeff5;
  --color-text-secondary: #94a3b4;
  --color-text-inverse: #0d1722;

  --color-steel: #8e99a6;
  --color-steel-light: #6d7886;
  --color-silver: #566374;
  --color-graphite: #c9d3de;

  --color-success: #4ec98a;
  --color-success-soft: #142a20;

  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.3);

  --header-bg: rgba(13, 23, 34, 0.92);
  --header-border: #1d2b3a;
}

/* ===== База ===== */
* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font: 400 16px/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--color-text);
  text-wrap: balance;
}

a { color: var(--color-primary); }
img { max-width: 100%; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-inline: clamp(16px, 4vw, 32px);
}

.dim, .muted, .section-sub { color: var(--color-text-secondary); }

/* ===== Кнопки: плоские, без градиентов ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-button);
  font: 600 15px var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); }

.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover { border-color: var(--color-primary); }

.btn-sm { min-height: 40px; padding: 0 18px; font-size: 14px; }
.tg-ico { width: 18px; height: 18px; fill: currentColor; }

/* ===== Шапка ===== */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
header.site.scrolled { border-bottom-color: var(--header-border); }

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px 28px;
  flex-wrap: wrap;
  padding-block: 12px;
}
.logo { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.logo-img { width: 42px; height: 42px; border-radius: 10px; object-fit: cover; }
.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  color: var(--color-text);
  white-space: nowrap;
}

.nav-wrap { display: flex; align-items: center; gap: 12px 24px; flex: 1 1 auto; flex-wrap: wrap; }
nav.main { display: flex; gap: 6px 22px; flex-wrap: wrap; flex: 1 1 auto; }
nav.main a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.15s ease;
}
nav.main a:hover { color: var(--color-accent); }

/* Переключатель темы */
.theme-switch {
  flex: none;
  width: 52px;
  height: 28px;
  padding: 3px;
  border-radius: var(--radius-chip);
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  cursor: pointer;
  display: flex;
  align-items: center;
}
.ts-knob {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  display: grid; place-items: center;
  transition: transform 0.2s ease;
}
.ts-ico { width: 12px; height: 12px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; }
.ts-ico-sun { display: none; }
[data-theme="dark"] .ts-knob { transform: translateX(24px); background: var(--color-accent); }
[data-theme="dark"] .ts-ico-moon { display: none; }
[data-theme="dark"] .ts-ico-sun { display: block; }

/* Мобильное меню */
.menu-toggle {
  display: none;
  align-items: center;
  gap: 7px;
  margin-left: auto;
  min-height: 40px;
  padding: 0 14px;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font: 600 14px var(--font-body);
  cursor: pointer;
}
.menu-toggle .chev { color: var(--color-accent); font-size: 17px; line-height: 1; }

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 60;
  border: 0;
  background: rgba(2, 49, 82, 0.4);
  cursor: pointer;
}
body.nav-open .nav-backdrop { display: block; }

.nav-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 61;
  width: min(300px, 86vw);
  display: none;
  flex-direction: column;
  padding: 22px;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border-soft);
  transform: translateX(100%);
  transition: transform 0.24s ease;
}
body.nav-open .nav-panel { transform: translateX(0); }
.nav-panel nav { display: flex; flex-direction: column; }
.nav-panel nav a {
  padding: 14px 0;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid var(--color-border-soft);
}
.nav-panel nav a:last-child { border-bottom: 0; }
.nav-panel nav a:hover { color: var(--color-accent); }
.nav-panel-theme {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0;
  margin-top: auto;
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* ===== Хлебные крошки ===== */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding-top: 18px;
  font-size: 13.5px;
  color: var(--color-text-secondary);
}
.crumbs a { color: var(--color-text-secondary); text-decoration: none; }
.crumbs a:hover { color: var(--color-accent); }
.crumbs .sep { color: var(--color-silver); }

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border-soft);
}
/* Скайлайн — узкой полосой по низу, не залезает под текст */
.hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 170px;
  background: url("assets/skyline.jpg") center bottom / cover no-repeat;
  opacity: 0.7;
  -webkit-mask-image: linear-gradient(to top, #000 55%, transparent 100%);
  mask-image: linear-gradient(to top, #000 55%, transparent 100%);
  pointer-events: none;
}
[data-theme="dark"] .hero::after { opacity: 0.12; }

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(190px, 16vw, 230px);
}
.hero-text { max-width: 36rem; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font: 600 12.5px var(--font-body);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-steel);
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--color-accent); }

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: pink;
}
.hero h1 .accent { color: var(--color-accent); }

.hero .lead {
  margin: 0 0 28px;
  font-size: 17.5px;
  color: var(--color-text-secondary);
  max-width: 52ch;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  max-width: 46ch;
}
.hero-note .lock { color: var(--color-success); flex: none; }

/* Телефон с диалогом */
.phone {
  justify-self: center;
  width: min(310px, 100%);
  padding: 12px;
  border-radius: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}
.phone-shot {
  display: block;
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  object-position: top center;
  border-radius: 22px;
}

/* ===== Секции ===== */
section.block { padding-block: clamp(48px, 7vw, 78px); }
section.block.alt {
  background: var(--color-background-muted);
  border-block: 1px solid var(--color-border-soft);
}
h2 { margin: 0 0 12px; font-size: clamp(25px, 3.2vw, 35px); }
.section-sub { margin: 0 0 34px; max-width: 60ch; font-size: 16.5px; }
.h-sec { font-size: 21px; margin: 32px 0 14px; }

/* Лента цифр */
.band { background: var(--color-surface); border-bottom: 1px solid var(--color-border-soft); }
.band-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 18px;
  padding-block: 26px;
}
.band-item { display: flex; align-items: baseline; gap: 10px; justify-content: center; }
.band-item .n {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.band-item .l { font-size: 13.5px; color: var(--color-text-secondary); line-height: 1.35; }

/* ===== Карточки услуг ===== */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(248px, 1fr)); gap: 18px; }
.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--color-border); box-shadow: var(--shadow-card); }
.card .ico {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--color-accent-soft);
  display: grid; place-items: center;
}
.card .ico svg, .guarantee .icon svg {
  width: 23px; height: 23px; fill: none;
  stroke: var(--color-accent); stroke-width: 1.9;
  stroke-linecap: round; stroke-linejoin: round;
}
.card h3 { margin: 0; font-size: 19px; }
.card p { margin: 0; flex: 1 1 auto; color: var(--color-text-secondary); font-size: 15px; }
.card .foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card .price {
  font-family: var(--font-heading);
  font-size: 19px; font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.card .go { font-size: 14px; font-weight: 600; color: var(--color-accent); text-decoration: none; white-space: nowrap; }
.card .go:hover { text-decoration: underline; }

/* ===== Процесс ===== */
.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.steps::before {
  content: "";
  position: absolute;
  top: 19px; left: 19px; right: 19px;
  height: 1px;
  background: var(--color-border);
}
.step { position: relative; }
.step .dot {
  position: relative; z-index: 1;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  display: grid; place-items: center;
  font: 600 15px var(--font-body);
  box-shadow: 0 0 0 6px var(--color-background);
  margin-bottom: 16px;
}
.step h3 { margin: 0 0 7px; font-size: 17px; }
.step p { margin: 0; font-size: 14.5px; color: var(--color-text-secondary); max-width: 32ch; }

/* ===== Гарантии ===== */
.guarantee-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 24px; }
.guarantee { display: flex; gap: 16px; align-items: flex-start; }
.guarantee .icon {
  flex: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  display: grid; place-items: center;
}
.guarantee h3 { margin: 0 0 5px; font-size: 16.5px; }
.guarantee p { margin: 0; font-size: 14.5px; color: var(--color-text-secondary); }

/* ===== Чипы ===== */
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-chip);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.chip:hover { border-color: var(--color-accent); color: var(--color-accent); }
.chip.active { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-text-inverse); }
.chip.gold { border-color: var(--color-accent); color: var(--color-accent); }
.chip .c { font-size: 12px; opacity: 0.65; }

/* ===== FAQ ===== */
.faq { max-width: 760px; }
.faq details {
  margin-bottom: 10px;
  border: 1px solid var(--color-border-soft);
  border-radius: 14px;
  background: var(--color-surface);
}
.faq details[open] { border-color: var(--color-border); }
.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16.5px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  flex: none;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 7px;
  background: var(--color-surface-alt);
  color: var(--color-accent);
  font-size: 17px;
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 20px 18px; color: var(--color-text-secondary); font-size: 15px; max-width: 66ch; }

/* ===== Правила ===== */
.rules { max-width: 760px; }
.rule { padding: 28px 0; border-bottom: 1px solid var(--color-border-soft); }
.rule:last-child { border-bottom: 0; }
.rule h2 { font-size: 20px; margin: 0 0 10px; }
.rule p { margin: 0 0 10px; color: var(--color-text-secondary); font-size: 15.5px; max-width: 68ch; }
.rule p:last-child { margin-bottom: 0; }
.rule strong { color: var(--color-text); }

/* ===== Прайс и формула (страница «Срочно») ===== */
.price-table { width: 100%; border-collapse: collapse; max-width: 720px; }
.price-table th, .price-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--color-border-soft);
  font-size: 15px;
}
.price-table th {
  font: 600 12px var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}
.price-table .sum {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.formula {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 18px 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-card);
}
.f-part { text-align: center; }
.f-num { display: block; font-family: var(--font-heading); font-weight: 700; font-size: 19px; }
.f-lbl { display: block; font-size: 12px; color: var(--color-text-secondary); }
.f-op { font-size: 18px; color: var(--color-accent); }

/* ===== Финальный CTA ===== */
.cta-final { text-align: center; background: var(--color-primary); }
.cta-final h2, .cta-final p { color: var(--color-text-inverse); }
.cta-final p { margin: 0 auto 28px; max-width: 54ch; opacity: 0.82; }

/* ===== Подвал ===== */
footer.site {
  padding-block: 32px;
  border-top: 1px solid var(--color-border-soft);
  background: var(--color-surface);
  font-size: 14.5px;
  color: var(--color-text-secondary);
}
.footer-inner { display: flex; flex-wrap: wrap; gap: 14px 36px; justify-content: space-between; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
footer.site a { color: var(--color-text-secondary); text-decoration: none; }
footer.site a:hover { color: var(--color-accent); }

/* ===== Появление блоков ===== */
html.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.45s ease, transform 0.45s ease; }
html.js .reveal.in { opacity: 1; transform: none; }

:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* ===== Адаптив ===== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero::after { height: 120px; }
  .hero-inner { padding-bottom: 150px; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .steps::before { top: 19px; bottom: 19px; left: 18px; right: auto; width: 1px; height: auto; }
  .step { padding-left: 56px; }
  .step .dot { position: absolute; left: 0; top: 0; margin: 0; }
}
@media (max-width: 760px) {
  nav.main, .nav-wrap > .theme-switch, .nav-wrap > .btn { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-panel { display: flex; }
  .logo-text { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  .btn, .card, .reveal, .nav-panel, .ts-knob, .faq summary::after { transition: none; }
  html.js .reveal { opacity: 1; transform: none; }
}

/* Ссылка на кабинет в шапке */
.nav-account {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  white-space: nowrap;
}
.nav-account:hover { color: var(--color-accent); }
.nav-panel .nav-account { padding: 14px 0; color: var(--color-text); font-weight: 600; border-bottom: 1px solid var(--color-border-soft); }
@media (max-width: 760px) { .nav-wrap > .nav-account { display: none; } }