@charset "UTF-8";
/* ============================================================
               ГЛОБАЛЬНЫЕ ПЕРЕМЕННЫЕ (CSS Custom Properties)
               ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --font-sans: "Inter", sans-serif;
  --font-headings: "Montserrat", sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --color-accent: #d35400;
  --color-accent-hover: #b84a00;
  /* Тёмная тема (по умолчанию) */
  --color-bg-page: #343a40;
  --color-bg-card: #343a40;
  --color-bg-elevated: #3d444b;
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.8);
  --color-text-muted: rgba(255, 255, 255, 0.6);
  --color-border: rgba(255, 255, 255, 0.15);
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-input-bg: rgba(255, 255, 255, 0.15); /* Увеличенная плотность */
  --color-hero-overlay: rgba(0, 0, 0, 0.2);
  --hero-bg-start: #343a40;
  --hero-bg-end: #1a1d20;
  --card-border-style: dashed;
  --card-border-color: rgba(255, 255, 255, 0.15);
  --range-track-bg: #4a5159;
  --range-thumb-bg: #ffffff;
  --range-thumb-border: #ffffff;
  --theme-toggle-bg: rgba(255, 255, 255, 0.1);
  --theme-toggle-icon: #ffffff;
}

/* Светлая тема */
[data-theme=light] {
  --color-bg-page: #f2f4f6;
  --color-bg-card: #ffffff;
  --color-bg-elevated: #e8eaed;
  --color-text-primary: #1a1d20;
  --color-text-secondary: rgba(26, 29, 32, 0.8);
  --color-text-muted: rgba(26, 29, 32, 0.55);
  --color-border: rgba(0, 0, 0, 0.1);
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-input-bg: rgba(0, 0, 0, 0.08); /* Увеличенная плотность */
  --color-hero-overlay: rgba(255, 255, 255, 0.1);
  --hero-bg-start: #e8eaed;
  --hero-bg-end: #d5d8dd;
  --card-border-style: solid;
  --card-border-color: rgba(0, 0, 0, 0.08);
  --range-track-bg: #d5d8dd;
  --range-thumb-bg: #ffffff;
  --range-thumb-border: #d35400;
  --theme-toggle-bg: rgba(0, 0, 0, 0.08);
  --theme-toggle-icon: #1a1d20;
}

/* ============================================================
       БАЗА
       ============================================================ */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.text-accent {
  color: var(--color-accent);
  font-weight: 700;
}

/* ============================================================
       КНОПКА ПЕРЕКЛЮЧЕНИЯ ТЕМЫ
       ============================================================ */
.theme-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--theme-toggle-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 16px var(--color-shadow);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.3s ease;
  color: var(--theme-toggle-icon);
  font-size: 24px;
  line-height: 1;
}

.theme-toggle:hover {
  transform: scale(1.08);
}

.theme-toggle:active {
  transform: scale(0.92);
}

.theme-toggle svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.5s ease;
}

.theme-toggle .icon-sun {
  display: block;
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme=light] .theme-toggle .icon-sun {
  display: none;
}

[data-theme=light] .theme-toggle .icon-moon {
  display: block;
}

/* ============================================================
       ЛОГОТИП
       ============================================================ */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-headings);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text-primary);
}

.logo svg {
  width: 28px;
  height: auto;
  fill: var(--color-text-primary);
  transition: fill 0.3s ease;
}

.logo span {
  line-height: 1;
}

/* ============================================================
       НАВИГАЦИЯ
       ============================================================ */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.navbar .btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-text-primary);
}

.navbar .btn-outline:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* ============================================================
       HERO
       ============================================================ */
.hero-section {
  background: linear-gradient(to bottom, var(--hero-bg-start) 50%, var(--hero-bg-end) 50%);
  padding-bottom: 8rem;
  position: relative;
  transition: background 0.3s ease;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100vh;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="4" viewBox="0 0 4 4"><rect fill="%231b1f23" width="2" height="2"/><rect x="2" y="2" fill="%231b1f23" width="2" height="2"/></svg>');
  opacity: 0.04;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin-bottom: 30vh;
}

.hero-title {
  font-family: var(--font-headings);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  line-height: 1.1;
  transition: color 0.3s ease;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
  transition: color 0.3s ease, border-color 0.3s ease;
}

/* ============================================================
       ФОРМА
       ============================================================ */
.lead-form input {
  width: 100%;
  padding: 16px;
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  background: var(--color-input-bg); /* теперь непрозрачный серый фон */
  border: 2px solid var(--color-border);
  color: var(--color-text-primary);
  transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease;
  /* убрали backdrop-filter, чтобы фон был плотным */
}

.lead-form input::-moz-placeholder {
  color: var(--color-text-muted);
}

.lead-form input:-ms-input-placeholder {
  color: var(--color-text-muted);
}

.lead-form input::placeholder {
  color: var(--color-text-muted);
}

.lead-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.lead-form .btn-primary {
  width: 100%;
  margin-top: 0.25rem;
}

.lead-form .form-hint {
  display: block;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color 0.3s ease;
}

/* ============================================================
       КНОПКИ
       ============================================================ */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  text-align: center;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  border: 2px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

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

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

.btn-outline:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* ============================================================
       TRUST SECTION
       ============================================================ */
.trust-section {
  padding: 6rem 0;
  background: var(--color-bg-page);
  transition: background 0.3s ease;
}

.section-title {
  font-family: var(--font-headings);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  text-align: center;
  margin-bottom: 3rem;
  color: var(--color-text-primary);
  transition: color 0.3s ease;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  padding: 2.5rem;
  background: var(--color-bg-card);
  border: 1px var(--card-border-style) var(--card-border-color);
  border-radius: var(--radius-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, border-color 0.3s ease;
  color: var(--color-text-primary);
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: var(--color-text-primary);
  transition: color 0.3s ease;
}

.feature-card p {
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--color-shadow);
  border-style: solid;
  border-color: var(--color-accent);
}

/* ============================================================
       РАЗДЕЛИТЕЛЬ
       ============================================================ */
.separator {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: 0;
  transition: background 0.3s ease;
}

/* ============================================================
       КАЛЬКУЛЯТОР — исправлен scroll-margin-top
       ============================================================ */
.calculator-section {
  background: var(--color-bg-page);
  padding: 6rem 0;
  transition: background 0.3s ease;
  scroll-margin-top: 1rem; /* ← отступ при якорной навигации уменьшен до 1rem */
}

.calc-desc {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

.calc-widget {
  background: var(--color-bg-card);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  max-width: 540px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  color: var(--color-text-primary);
}

.slider-group {
  margin-bottom: 2rem;
}

.slider-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color 0.3s ease;
}

.slider-group .slider-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  color: var(--color-text-primary);
  transition: color 0.3s ease;
}

/* Ползунок */
input[type=range] {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  -moz-appearance: none;
       appearance: none;
  background: var(--range-track-bg);
  border-radius: 4px;
  outline: none;
  transition: background 0.3s ease;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--range-thumb-bg);
  border: 3px solid var(--range-thumb-border);
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-shadow);
  -webkit-transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

input[type=range]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--range-thumb-bg);
  border: 3px solid var(--range-thumb-border);
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.slider-group .range-level-2::-webkit-slider-thumb {
  border-color: var(--color-accent);
}

.slider-group .range-level-2::-moz-range-thumb {
  border-color: var(--color-accent);
}

.slider-group .range-level-3::-webkit-slider-thumb {
  border-color: var(--color-text-primary);
}

.slider-group .range-level-3::-moz-range-thumb {
  border-color: var(--color-text-primary);
}

.result-box {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  transition: border-color 0.3s ease;
}

.result-box p {
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
}

.result-box h3 {
  color: var(--color-accent);
  font-size: 2rem;
  font-family: var(--font-headings);
  font-weight: 900;
  transition: color 0.3s ease;
}

/* ============================================================
       ФУТЕР
       ============================================================ */
.footer-section {
  text-align: center;
  padding: 3rem 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  border-top: 1px solid var(--color-border);
  transition: color 0.3s ease, border-color 0.3s ease;
  background: var(--color-bg-page);
}

/* ============================================================
       АДАПТИВ
       ============================================================ */
@media (max-width: 768px) {
  .hero-title {
    font-size: clamp(2rem, 6vw, 2.8rem);
    line-height: 1.2;
  }
  .hero-content {
    margin-bottom: 10vh;
  }
  .lead-form .btn-primary {
    padding: 16px;
  }
  .feature-card {
    padding: 1.5rem;
  }
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .navbar .btn-outline {
    width: 100%;
    text-align: center;
  }
  .theme-toggle {
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    font-size: 20px;
  }
  .theme-toggle svg {
    width: 22px;
    height: 22px;
  }
}
@media (max-width: 480px) {
  .calc-widget {
    padding: 1.5rem;
  }
  .result-box h3 {
    font-size: 1.5rem;
  }
}/*# sourceMappingURL=style.css.map */