/* ==========================================================
   ДИЗАЙН-ТОКЕНЫ
   ========================================================== */
:root,
[data-theme="dark"] {
  --bg:          #0b1220;
  --bg-alt:      #111c31;
  --panel:       #16233c;
  --line:        #24354f;
  --text:        #e8eef8;
  --muted:       #9aabc4;

  --accent:      #c9a227;
  --accent-hi:   #dcb43a;
  --accent-soft: rgba(201, 162, 39, 0.12);
  --accent-line: rgba(201, 162, 39, 0.35);

  --success:     #6ee7a8;
  --danger:      #ff8a8a;

  --header-bg:   rgba(11, 18, 32, 0.85);
  --input-bg:    #0e1729;
  --hero-glow:   rgba(201, 162, 39, 0.12);
  --btn-primary-text: #0b1220;

  --radius:      14px;
  --radius-sm:   10px;
  --maxw:        1160px;
  --header-h:    72px;
  --ease:        cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-theme="light"] {
  --bg:          #f6f8fc;
  --bg-alt:      #eef2f9;
  --panel:       #ffffff;
  --line:        #dde4ee;
  --text:        #0f1a2e;
  --muted:       #5b6b85;

  --accent:      #a87818;
  --accent-hi:   #8f6512;
  --accent-soft: rgba(168, 120, 24, 0.12);
  --accent-line: rgba(168, 120, 24, 0.4);

  --success:     #15803d;
  --danger:      #b91c1c;

  --header-bg:   rgba(246, 248, 252, 0.85);
  --input-bg:    #ffffff;
  --hero-glow:   rgba(168, 120, 24, 0.16);
  --btn-primary-text: #ffffff;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  accent-color: var(--accent);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

main { flex: 1; }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

section[id] { scroll-margin-top: calc(var(--header-h) + 20px); }

.skip-link {
  position: absolute;
  left: 20px;
  top: -100px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--btn-primary-text);
  border-radius: 8px;
  font-weight: 700;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 20px; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 20px;
}

/* ==========================================================
   ШАПКА
   ========================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  flex: 0 0 auto;
}

.logo-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hi));
  color: #fff;
  font-weight: 900;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 0.94rem;
  color: var(--muted);
}

.nav ul {
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav a:not(.btn) { transition: color 0.15s var(--ease); }
.nav a:not(.btn):hover { color: var(--text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle,
.nav-toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.theme-toggle:hover,
.nav-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.nav-toggle { display: none; }
.nav-toggle-bar {
  display: block;
  position: relative;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.2s var(--ease), top 0.2s var(--ease);
}
.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after  { top:  6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after  { top: 0; transform: rotate(-45deg); }

/* ==========================================================
   КНОПКИ
   ========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-size: 0.94rem;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s var(--ease), color 0.18s var(--ease),
              border-color 0.18s var(--ease), transform 0.12s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.65; cursor: progress; transform: none; }

.btn-primary {
  background: var(--accent);
  color: var(--btn-primary-text);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hi); }

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

/* ==========================================================
   HERO
   ========================================================== */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 88px;
  background:
    radial-gradient(900px 420px at 78% -10%, var(--hero-glow), transparent 70%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(127, 127, 127, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 127, 127, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 85% 65% at 50% 0%, #000 35%, transparent 100%);
          mask-image: radial-gradient(ellipse 85% 65% at 50% 0%, #000 35%, transparent 100%);
}

.hero .wrap { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 22px;
  padding: 6px 14px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: -0.022em;
  text-wrap: balance;
}
h1 .accent { color: var(--accent); }

.lead {
  margin: 0 0 32px;
  max-width: 56ch;
  color: var(--muted);
  font-size: 1.08rem;
  text-wrap: pretty;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat {
  position: relative;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.7;
}
.stat b {
  display: block;
  font-size: 1.6rem;
  line-height: 1.2;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.stat span {
  display: block;
  margin-top: 4px;
  font-size: 0.86rem;
  color: var(--muted);
}

/* ==========================================================
   СЕКЦИИ
   ========================================================== */
section { padding: 84px 0; }

.section-head { max-width: 62ch; margin-bottom: 48px; }
.section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.section-head p { margin: 0; color: var(--muted); text-wrap: pretty; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  padding: 30px 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease),
              background 0.3s var(--ease);
}
.card:hover {
  border-color: var(--accent-line);
  transform: translateY(-3px);
}
.card-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.card h3 { margin: 0 0 10px; font-size: 1.1rem; }
.card p  { margin: 0; color: var(--muted); font-size: 0.95rem; text-wrap: pretty; }

.process { background: var(--bg-alt); border-block: 1px solid var(--line); }

.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.steps li {
  padding: 26px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.steps li::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.steps h3 { margin: 0 0 8px; font-size: 1.02rem; }
.steps p  { margin: 0; color: var(--muted); font-size: 0.92rem; text-wrap: pretty; }

/* ==========================================================
   КОНТАКТЫ + ФОРМА
   ========================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.contact-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  color: var(--muted);
}
.contact-list strong { color: var(--text); font-weight: 700; }
.contact-list a:hover { color: var(--accent); }

form {
  padding: 30px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 16px;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.field { display: grid; gap: 7px; }
label { font-size: 0.86rem; color: var(--muted); }

input,
textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; min-height: 118px; }

/* --- Валидация --- */
.field.has-error input,
.field.has-error textarea {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(255, 128, 128, 0.15);
}
.field.has-error input:focus,
.field.has-error textarea:focus {
  box-shadow: 0 0 0 3px rgba(255, 128, 128, 0.25);
}
.field.has-success input,
.field.has-success textarea {
  border-color: var(--success);
}

.field-error {
  display: none;
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.35;
  color: var(--danger);
}
.field-error:not(:empty) { display: block; }
.field-error--consent { margin-top: -6px; }

/* --- Согласие --- */
.consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.82rem;
  color: var(--muted);
}
.consent input { width: 16px; height: 16px; margin-top: 3px; flex: 0 0 16px; }

/* --- Honeypot: прячем визуально, но оставляем в DOM --- */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.form-status {
  min-height: 1.2em;
  margin: 0;
  font-size: 0.9rem;
}
.form-status[data-type="success"] { color: var(--success); }
.form-status[data-type="error"]   { color: var(--danger); }

/* ==========================================================
   ПОДВАЛ
   ========================================================== */
.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  background: var(--bg);
  font-size: 0.86rem;
  color: var(--muted);
  transition: background 0.3s var(--ease);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  align-items: center;
  justify-content: space-between;
}
.site-footer a:hover { color: var(--accent); }

/* ==========================================================
   АНИМАЦИИ ПОЯВЛЕНИЯ
   ========================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s var(--ease) var(--reveal-delay, 0ms),
    transform 0.7s var(--ease) var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

/* ==========================================================
   АДАПТИВНОСТЬ
   ========================================================== */
@media (max-width: 900px) {
  .hero { padding: 72px 0 64px; }
  .hero-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  section { padding: 64px 0; }
}

@media (max-width: 720px) {
  .nav-toggle { display: grid; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 60;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 20px;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  }
  .nav.is-open { display: flex; }
  .nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav a:not(.btn) {
    display: block;
    padding: 12px;
    border-radius: 8px;
  }
  .nav a:not(.btn):hover { background: var(--panel); }
  .nav-cta { margin-top: 8px; }
}

@media (max-width: 420px) {
  .hero-stats { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
  .reveal { opacity: 1; transform: none; }
}