/* ==========================================================================
   ООО «КСЕНАГРО» - MAIN STYLESHEET
   Palette:
   - Dark Green: #1B4332 (Headings, Form background)
   - Main Green: #2D6A4F (Buttons, Links, Accents)
   - Light Green: #E8F5E9 (Section background)
   - Accent Light Green: #52B788 (Bright buttons)
   - Graphite: #2B2D42 (Main body text)
   - Gray: #64748B (Secondary text)
   - Light Gray: #E2E8F0 (Borders)
   - White: #FFFFFF (Backgrounds & Cards)
   ========================================================================== */

:root {
  /* Colors */
  --color-dark-green: #1B4332;
  --color-dark-green-hover: #123024;
  --color-main-green: #2D6A4F;
  --color-main-green-hover: #214E3A;
  --color-light-green-bg: #E8F5E9;
  --color-accent-light-green: #52B788;
  --color-accent-light-green-hover: #409B70;
  
  --color-text-main: #2B2D42;
  --color-text-secondary: #64748B;
  --color-border: #E2E8F0;
  --color-bg-white: #FFFFFF;

  /* Typography */
  --font-family-base: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Outfit', 'Inter', system-ui, sans-serif;

  /* Layout */
  --container-max-width: 1240px;
  --header-height: auto;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(27, 67, 50, 0.05);
  --shadow-md: 0 8px 24px rgba(27, 67, 50, 0.08);
  --shadow-lg: 0 16px 36px rgba(27, 67, 50, 0.12);

  /* Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family-base);
  color: var(--color-text-main);
  background-color: var(--color-bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Accessibility Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-dark-green);
  font-family: var(--font-family-heading);
  font-weight: 800;
  line-height: 1.25;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: 2.5rem;
  position: relative;
  letter-spacing: -0.02em;
}

.text-center {
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-family-base);
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  line-height: 1.2;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background-color: var(--color-main-green);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--color-main-green-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent-light-green);
  color: var(--color-dark-green);
}

.btn-accent:hover {
  background-color: var(--color-accent-light-green-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(82, 183, 136, 0.4);
}


/* ==========================================================================
   1. ШАПКА (HEADER)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-container {
  display: flex;
  flex-direction: column;
}

/* Top Row */
.header-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.875rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}

.header-brand-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
}

.header-logo {
  height: 46px;
  width: auto;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-family-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-dark-green);
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand-tagline {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-main-green);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

/* Partner Logos next to Header Brand */
.header-partner-logos {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.partner-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform 0.2s ease;
}

.partner-logo:hover {
  transform: scale(1.04);
}

/* Top Contacts Right */
.header-top-contacts {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.header-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: var(--transition-fast);
}

.header-contact-item:hover {
  color: var(--color-main-green);
}

.header-contact-item.phone-link {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-dark-green);
}

.header-contact-item.phone-link:hover {
  color: var(--color-main-green);
}

.contact-icon {
  width: 18px;
  height: 18px;
  color: var(--color-main-green);
  flex-shrink: 0;
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
  z-index: 1010;
}

.hamburger-bar {
  width: 24px;
  height: 2.5px;
  background-color: var(--color-dark-green);
  border-radius: 2px;
  transition: var(--transition-normal);
}

/* Bottom Navigation Row */
.header-nav {
  padding-top: 0.625rem;
  padding-bottom: 0.625rem;
}

.nav-list {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover {
  color: var(--color-main-green);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-main-green);
  transition: var(--transition-fast);
  border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-btn-highlight {
  color: var(--color-main-green);
  font-weight: 700;
  background-color: var(--color-light-green-bg);
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
}

.nav-btn-highlight::after {
  display: none;
}

.nav-btn-highlight:hover {
  background-color: var(--color-main-green);
  color: #FFFFFF;
}


/* ==========================================================================
   2. HERO БЛОК (HERO)
   ========================================================================== */
.hero-section {
  padding-top: 4rem;
  padding-bottom: 4.5rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAF9 100%);
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background-color: var(--color-light-green-bg);
  color: var(--color-main-green);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
  color: var(--color-dark-green);
}

.hero-subtitle {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-main-green);
  margin-bottom: 0.75rem;
}

.hero-tagline {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.hero-actions {
  margin-bottom: 2.5rem;
}

.hero-btn {
  font-size: 1.125rem;
  padding: 1.125rem 2.5rem;
  border-radius: var(--radius-md);
}

.hero-grant-note {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent-light-green);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.grant-icon {
  width: 24px;
  height: 24px;
  color: var(--color-main-green);
  flex-shrink: 0;
  margin-top: 2px;
}

.grant-text {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.hero-media {
  position: relative;
}

.media-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-color: var(--color-light-green-bg);
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.media-wrapper:hover .hero-image {
  transform: scale(1.02);
}


/* ==========================================================================
   3. СЕКЦИЯ «О НАС» (ABOUT)
   ========================================================================== */
.about-section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  background-color: var(--color-bg-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-intro {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.about-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.125rem 1.25rem;
  background-color: #F8FAF9;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: var(--transition-normal);
}

.about-item:hover {
  transform: translateX(6px);
  border-color: var(--color-accent-light-green);
  background-color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.about-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-light-green-bg);
  color: var(--color-main-green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 4px;
}

.about-icon svg {
  width: 16px;
  height: 16px;
}

.about-text {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding-top: 2px;
}

.about-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.about-image {
  width: 100%;
  height: auto;
  display: block;
}


/* ==========================================================================
   4. СЕКЦИЯ «ПРЕИМУЩЕСТВА» (ADVANTAGES)
   ========================================================================== */
.advantages-section {
  padding-top: 5rem;
  padding-bottom: 5.5rem;
  background-color: var(--color-light-green-bg);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
}

.advantage-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 2rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.advantage-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-light-green);
}

.advantage-number {
  font-family: var(--font-family-heading);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--color-dark-green);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.advantage-caption {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  line-height: 1.4;
}


/* ==========================================================================
   5. СЕКЦИЯ «ЧТО ВХОДИТ» (INCLUDES)
   ========================================================================== */
.includes-section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  background-color: var(--color-bg-white);
}

.includes-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.includes-list {
  list-style: none;
  counter-reset: custom-counter;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.includes-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background-color: #F8FAF9;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: var(--transition-normal);
}

.includes-item:hover {
  background-color: #FFFFFF;
  border-color: var(--color-accent-light-green);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.includes-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-dark-green);
  color: #FFFFFF;
  font-family: var(--font-family-heading);
  font-size: 1.25rem;
  font-weight: 800;
  flex-shrink: 0;
}

.includes-text {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding-top: 8px;
  line-height: 1.5;
}

.includes-media {
  display: flex;
  justify-content: center;
}

.book-cover-wrapper {
  max-width: 440px;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.4s ease;
}

.book-cover-wrapper:hover {
  transform: scale(1.03) rotate(0.5deg);
}

.guide-image {
  width: 100%;
  height: auto;
  display: block;
}


/* ==========================================================================
   6. СЕКЦИЯ «ФОРМА» (FORM)
   ========================================================================== */
.form-section {
  padding-top: 5rem;
  padding-bottom: 5.5rem;
  background-color: var(--color-dark-green);
  color: #FFFFFF;
}

.form-container {
  max-width: 680px;
  text-align: center;
}

.form-title {
  color: #FFFFFF;
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.form-subtitle {
  font-size: 1.125rem;
  color: #D8F3DC;
  margin-bottom: 2.5rem;
  font-weight: 400;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  position: relative;
  text-align: left;
}

.form-input {
  width: 100%;
  padding: 1.125rem 1.5rem;
  font-family: var(--font-family-base);
  font-size: 1rem;
  color: var(--color-text-main);
  background-color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

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

.form-input:focus {
  box-shadow: 0 0 0 3px rgba(82, 183, 136, 0.5);
}

.form-input.input-error {
  box-shadow: 0 0 0 3px #EF4444;
}

.form-error-msg {
  display: none;
  color: #FCA5A5;
  font-size: 0.8125rem;
  margin-top: 0.375rem;
  margin-left: 0.5rem;
  font-weight: 500;
}

.form-error-msg.visible {
  display: block;
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

/* Custom Checkbox */
.consent-group {
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.form-checkbox {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkbox-custom {
  width: 22px;
  height: 22px;
  background-color: #FFFFFF;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.checkbox-custom::after {
  content: '';
  width: 6px;
  height: 11px;
  border: solid var(--color-dark-green);
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg) scale(0);
  transition: var(--transition-fast);
}

.form-checkbox:checked ~ .checkbox-custom {
  background-color: var(--color-accent-light-green);
}

.form-checkbox:checked ~ .checkbox-custom::after {
  transform: rotate(45deg) scale(1);
}

.checkbox-text {
  font-size: 0.9375rem;
  color: #E8F5E9;
}

.form-submit-btn {
  width: 100%;
  padding: 1.125rem 2rem;
  font-size: 1.125rem;
  font-weight: 800;
  margin-top: 0.5rem;
}


/* ==========================================================================
   7. СЕКЦИЯ «КОНТАКТЫ» (CONTACTS)
   ========================================================================== */
.contacts-section {
  padding-top: 5rem;
  padding-bottom: 5.5rem;
  background-color: var(--color-bg-white);
}

.contacts-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contacts-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.contacts-phone-link {
  font-family: var(--font-family-heading);
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--color-main-green);
  text-decoration: none;
  transition: var(--transition-normal);
  line-height: 1.2;
}

.contacts-phone-link:hover {
  color: var(--color-dark-green);
  transform: scale(1.03);
}

.contacts-email-link {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-main);
  text-decoration: none;
  transition: var(--transition-normal);
}

.contacts-email-link:hover {
  color: var(--color-main-green);
}


/* ==========================================================================
   8. ФУТЕР (FOOTER)
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: #F8FAF9;
}

.footer-container {
  text-align: center;
}

.footer-copyright {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}


/* ==========================================================================
   SUCCESS MODAL POPUP
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 40, 30, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  max-width: 440px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: var(--transition-normal);
}

.modal-backdrop.active .modal-card {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-text-secondary);
  cursor: pointer;
}

.modal-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--color-light-green-bg);
  color: var(--color-main-green);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

.modal-icon svg {
  width: 32px;
  height: 32px;
}

.modal-title {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-dark-green);
}

.modal-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.modal-action-btn {
  width: 100%;
}


/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1100px) {
  .advantages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .hero-title {
    font-size: 2.35rem;
  }
  
  .hero-container,
  .about-grid,
  .includes-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .header-top-contacts {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .header-nav {
    display: none;
    width: 100%;
    padding-top: 1rem;
    padding-bottom: 1rem;
  }

  .header-nav.nav-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .contacts-phone-link {
    font-size: 2rem;
  }
}

@media (max-width: 640px) {
  .header-brand-group {
    gap: 0.75rem;
  }

  .header-partner-logos {
    gap: 0.5rem;
  }

  .partner-logo {
    height: 32px;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .section-title,
  .form-title {
    font-size: 1.75rem;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .advantage-card {
    padding: 1.5rem 1rem;
  }

  .contacts-phone-link {
    font-size: 1.625rem;
  }

  .contacts-email-link {
    font-size: 1.125rem;
  }
}