/* ========================================
   Павел Кариков — сайт-визитка (variant-2)
   Чистый CSS, без фреймворков.
   Принцип: визуальная сила через типографику,
   минимум декора, максимум воздуха.
   ======================================== */

/* ---------- CSS-переменные ---------- */
:root {
  /* Цвета */
  --color-accent: #4F6BED;
  --color-accent-hover: #3B56D8;
  --color-accent-active: #2F47C0;
  --color-accent-soft: rgba(79, 107, 237, 0.08);
  --color-bg: #FFFFFF;
  --color-bg-soft: #F8F9FA;
  --color-sidebar: #F2F4F7;
  --color-text: #212529;
  --color-text-secondary: #6C757D;
  --color-border: #DEE2E6;
  --color-error: #DC3545;
  --color-success: #198754;

  /* Типографика */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Отступы и радиусы */
  --radius: 12px;
  --radius-sm: 8px;

  /* Тени — только для подчёркивания интерактива, не для карточек */
  --shadow-focus: 0 0 0 3px rgba(79, 107, 237, 0.15);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06);

  /* Layout */
  --sidebar-width: 280px;
  --container-max: 980px;
}

/* ---------- Базовый сброс ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  margin: 0;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent-hover);
}

h1, h2, h3, h4, p, ul, ol, figure {
  margin: 0;
}

ul, ol {
  padding-left: 0;
  list-style: none;
}

/* ---------- Layout: sidebar + content ---------- */
.mobile-header {
  display: none;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
  z-index: 100;
  overflow-y: auto;
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 40px 28px;
}

/* Профиль в sidebar */
.sidebar-profile {
  text-align: center;
  margin-bottom: 40px;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid #fff;
}

.sidebar-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.sidebar-role {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Навигация */
.sidebar-nav {
  flex: 1;
  margin-bottom: 40px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  background-color: rgba(255, 255, 255, 0.7);
  color: var(--color-text);
}

.nav-link.active {
  background-color: #fff;
  color: var(--color-accent);
}

/* Социальные иконки в sidebar */
.sidebar-social {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #fff;
  color: var(--color-text-secondary);
  transition: transform 0.2s ease, color 0.2s ease;
}

.social-link:hover {
  color: var(--color-accent);
  transform: translateY(-2px);
}

.social-icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Основной контент справа */
.main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  background-color: var(--color-bg-soft);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  padding: 80px 0;
}

.section-header {
  margin-bottom: 40px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
  min-height: 44px;
  text-decoration: none;
}

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

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

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

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

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

.btn-large {
  padding: 16px 32px;
  font-size: 1.125rem;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Hero ---------- */
.hero {
  padding-top: 60px;
  padding-bottom: 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-container {
  width: 100%;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 48px;
  align-items: center;
}

/* Текстовая часть hero */
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.hero-title {
  font-size: 5rem;
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--color-text);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 460px;
  line-height: 1.5;
}

.hero-utp {
  font-size: 1.0625rem;
  color: var(--color-text);
  max-width: 480px;
  line-height: 1.55;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
  margin-bottom: 8px;
}

.hero-fact {
  display: inline-block;
  padding: 8px 14px;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 999px;
}

/* Визуальная часть hero */
.hero-visual {
  position: relative;
  height: 100%;
  min-height: 560px;
}

.hero-photo-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 560px;
  overflow: hidden;
  border-radius: var(--radius);
  background-color: var(--color-sidebar);
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transform: scale(1.08);
  will-change: transform;
}

/* ---------- Entrance-анимация hero ---------- */
.hero-content > * {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeSlideIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.32s; }
.hero-content > *:nth-child(4) { animation-delay: 0.42s; }
.hero-content > *:nth-child(5) { animation-delay: 0.52s; }
.hero-content > *:nth-child(6) { animation-delay: 0.62s; }

.hero-visual {
  opacity: 0;
  transform: translateX(30px);
  animation: fadeSlideRight 1s cubic-bezier(0.22, 1, 0.36, 1) 0.3s forwards;
}

@keyframes fadeSlideIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlideRight {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---------- Benefits: 3 крупных блока ---------- */
.benefits-list {
  display: flex;
  flex-direction: column;
}

.benefit-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}

.benefit-block:first-child {
  padding-top: 0;
}

.benefit-block:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.benefit-number {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
  letter-spacing: -0.03em;
}

.benefit-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.benefit-title {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

.benefit-body p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  max-width: 560px;
}

/* ---------- Trust: био + плашка фактов ---------- */
.trust-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.trust-bio {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--color-text);
}

.trust-facts {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.facts-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.facts-list li {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.45;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}

.facts-list li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.fact-value {
  color: var(--color-text);
  font-weight: 600;
}

/* ---------- Process: как я работаю ---------- */
.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 760px;
}

.process-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.process-number {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 1rem;
  font-weight: 700;
}

.process-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 8px;
}

.process-content p {
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ---------- FAQ: чистый аккордеон ---------- */
.accordion {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.accordion-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  font-weight: 600;
  font-size: 1.0625rem;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

.accordion-summary:hover {
  color: var(--color-accent);
}

.accordion-summary::-webkit-details-marker {
  display: none;
}

.accordion-icon {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.accordion-item[open] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 0 0 24px;
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.accordion-body p {
  max-width: 760px;
}

/* ---------- Form: лёгкая форма без карточки ---------- */
.form-section {
  padding-bottom: 100px;
}

.form-lead {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.required {
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: #fff;
  color: var(--color-text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: #ADB5BD;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  display: none;
  font-size: 0.85rem;
  color: var(--color-error);
}

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

.form-status {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: none;
}

.form-status.success {
  display: block;
  background-color: rgba(25, 135, 84, 0.08);
  color: var(--color-success);
  border: 1px solid rgba(25, 135, 84, 0.25);
}

.form-status.error {
  display: block;
  background-color: rgba(220, 53, 69, 0.08);
  color: var(--color-error);
  border: 1px solid rgba(220, 53, 69, 0.25);
}

.btn-submit {
  align-self: flex-start;
  margin-top: 8px;
}

/* ---------- Contacts: чистый список ---------- */
.contacts-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-type {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}

.contact-link {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s ease, transform 0.2s ease;
}

.contact-link:hover {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* ---------- Footer ---------- */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* ---------- Адаптивность ---------- */

/* Планшет: 768–1199px */
@media (max-width: 1199px) {
  :root {
    --sidebar-width: 260px;
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .hero-title {
    font-size: 3.75rem;
  }

  .hero-visual {
    min-height: 480px;
  }

  .hero-photo-wrap {
    min-height: 480px;
  }

  .trust-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .benefit-block {
    grid-template-columns: 80px 1fr;
    gap: 24px;
  }

  .benefit-number {
    font-size: 2rem;
  }
}

/* Мобильный: до 767px */
@media (max-width: 767px) {
  .mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    padding: 0 20px;
    background-color: var(--color-sidebar);
    border-bottom: 1px solid var(--color-border);
    z-index: 200;
  }

  .mobile-logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
  }

  .burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
  }

  .burger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .burger[aria-expanded="true"] .burger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .burger[aria-expanded="true"] .burger-line:nth-child(2) {
    opacity: 0;
  }

  .burger[aria-expanded="true"] .burger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .sidebar {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    height: calc(100vh - 64px);
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 150;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-inner {
    padding: 24px 20px;
  }

  .sidebar-profile {
    margin-bottom: 24px;
  }

  .avatar {
    width: 100px;
    height: 100px;
  }

  .main {
    margin-left: 0;
    padding-top: 64px;
  }

  .container {
    padding: 0 20px;
  }

  .section {
    padding: 48px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 32px;
    padding-bottom: 48px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-content {
    gap: 16px;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-visual {
    order: -1;
    min-height: 360px;
  }

  .hero-photo-wrap {
    min-height: 360px;
  }

  .hero-facts {
    margin-top: 0;
  }

  .btn {
    width: 100%;
  }

  .btn-large {
    padding: 14px 24px;
  }

  .btn-submit {
    align-self: stretch;
  }

  .section-title {
    font-size: 1.875rem;
  }

  .benefit-block {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 28px 0;
  }

  .benefit-number {
    font-size: 1.75rem;
  }

  .benefit-title {
    font-size: 1.25rem;
  }

  .trust-bio {
    font-size: 1.125rem;
  }

  .trust-facts {
    padding: 24px;
  }

  .process-step {
    gap: 16px;
  }

  .process-number {
    width: 40px;
    height: 40px;
    font-size: 0.875rem;
  }

  .process-content h3 {
    font-size: 1.125rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px 0;
  }

  .contact-link {
    font-size: 1rem;
  }
}

/* Маленькие экраны */
@media (max-width: 359px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 1.625rem;
  }
}

/* ---------- Фокус-стили для доступности ---------- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- Предпочтение уменьшенной анимации ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}