/* ============================================
   DESIGN SYSTEM: "The Illuminated Archive"
   siderus.agency — Руслан Сидельников, SEO
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Surfaces */
  --surface: #f9f9f7;
  --surface-dim: #d4dcd8;
  --surface-bright: #f9f9f7;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f2f4f2;
  --surface-container: #ecefec;
  --surface-container-high: #e5e9e6;
  --surface-container-highest: #dee4e0;
  --surface-variant: #dee4e0;

  /* Primary */
  --primary: #FFD700;
  --primary-dim: #E6C200;
  --primary-container: #FFD700;
  --primary-fixed: #FFEA7A;
  --primary-fixed-dim: #FFE44D;

  /* On Colors */
  --on-primary: #2d3432;
  --on-primary-container: #2d3432;
  --on-surface: #2d3432;
  --on-surface-variant: #5a605e;
  --on-background: #2d3432;

  /* Secondary */
  --secondary: #5f5f5f;
  --secondary-container: #e4e2e2;
  --on-secondary: #fbf8f8;

  /* Tertiary */
  --tertiary-container: #eff5c7;

  /* Outline */
  --outline: #767c79;
  --outline-variant: #adb3b0;

  /* Error */
  --error: #9e422c;
  --error-container: #fe8b70;

  /* Inverse */
  --inverse-surface: #0d0f0e;
  --inverse-on-surface: #9c9d9b;

  /* Typography */
  --font-headline: 'Manrope', sans-serif;
  --font-body: 'Manrope', sans-serif;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radii */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-2xl: 3rem;
  --radius-full: 9999px;

  /* Shadows (ambient, not heavy) */
  --shadow-sm: 0 1px 3px rgba(45,52,50,0.04);
  --shadow-md: 0 4px 16px rgba(45,52,50,0.05);
  --shadow-lg: 0 8px 32px rgba(45,52,50,0.06);
  --shadow-xl: 0 12px 48px rgba(45,52,50,0.08);
  --shadow-primary: 0 8px 32px rgba(255,215,0,0.25);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Max width */
  --max-w: 1200px;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: var(--primary);
  color: var(--on-primary);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  font-weight: 700;
  line-height: 1.15;
  color: var(--on-surface);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.text-balance {
  text-wrap: balance;
}

/* --- Material Symbols --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

/* --- Layout --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.section {
  padding: var(--space-24) 0;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(249,249,247,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-8);
  max-width: var(--max-w);
  margin: 0 auto;
}

.nav__logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--on-surface);
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  transition: color var(--transition-fast);
  letter-spacing: -0.01em;
}

.nav__link:hover {
  color: var(--on-surface);
}

.nav__cta {
  background: var(--primary);
  color: var(--on-primary);
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  filter: brightness(1.08);
  transform: scale(1.03);
}

.nav__cta:active {
  transform: scale(0.97);
}

/* Currency Switcher */
.currency-switch {
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
  position: relative;
  margin-left: var(--space-4);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.05);
}

.currency-switch__btn {
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  color: var(--on-surface-variant);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  position: relative;
  z-index: 2;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.currency-switch__btn.active {
  background: var(--primary);
  color: #1a1a1a;
  box-shadow: 0 2px 8px rgba(255,215,0,0.4);
}

.currency-switch__btn:hover:not(.active) {
  color: var(--on-surface);
  background: rgba(0,0,0,0.04);
}

/* Price transition */
.price {
  transition: opacity 0.2s ease;
}

.price.switching {
  opacity: 0.4;
}

/* Mobile burger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  z-index: 110;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--on-surface);
  border-radius: 2px;
  transition: var(--transition-base);
}

.nav__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__burger.active span:nth-child(2) {
  opacity: 0;
}
.nav__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.nav__mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(249,249,247,0.97);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  z-index: 105;
}

.nav__mobile-menu.active {
  display: flex;
}

.nav__mobile-menu a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--on-surface);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  padding-top: calc(80px + var(--space-16));
  padding-bottom: var(--space-20);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.hero__title {
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.hero__title .accent {
  color: var(--primary-dim);
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
  max-width: 520px;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--on-surface);
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hero__trust-divider {
  color: var(--outline-variant);
  user-select: none;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.hero__contacts {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-2);
}

.hero__contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  transition: color var(--transition-fast);
}

.hero__contact-link:hover {
  color: var(--on-surface);
}

.hero__contact-link .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 20px;
}

/* Hero form card */
.hero__form-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.hero__form-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: rgba(255,215,0,0.12);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}

.hero__form-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.hero__form-subtitle {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  margin-bottom: var(--space-6);
}

/* ============================================
   FORMS (shared)
   ============================================ */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: var(--surface-container-low);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--on-surface);
  transition: all var(--transition-fast);
  outline: none;
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--outline-variant);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  background: var(--surface-container-lowest);
  border-color: rgba(255,228,77,0.4);
  box-shadow: 0 0 0 4px rgba(255,215,0,0.08);
}

.form__select {
  color: var(--on-surface-variant);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a605e' fill='none' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__textarea {
  resize: vertical;
  min-height: 80px;
}

.form__consent {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.8rem;
  color: var(--on-surface-variant);
}

.form__consent input[type="checkbox"] {
  margin-top: 2px;
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.form__consent a {
  color: var(--primary-dim);
  text-decoration: underline;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn--primary {
  background: var(--primary);
  color: var(--on-primary);
  padding: var(--space-4) var(--space-8);
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255,215,0,0.35);
}

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

.btn--primary-lg {
  padding: var(--space-5) var(--space-10);
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
  font-weight: 800;
}

.btn--outline {
  background: transparent;
  color: var(--on-surface);
  padding: var(--space-4) var(--space-8);
  border: 2px solid var(--primary);
}

.btn--outline:hover {
  background: var(--primary);
  color: var(--on-primary);
}

.btn--full {
  width: 100%;
}

/* ============================================
   SECTION: С кем работаю
   ============================================ */
.audience {
  background: var(--surface-container-low);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.section__title {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section__title--left {
  text-align: left;
}

.section__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-16);
  gap: var(--space-8);
}

.section__header p {
  max-width: 400px;
  text-align: right;
  font-size: 0.95rem;
}

.cards-grid {
  display: grid;
  gap: var(--space-8);
}

.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Card component */
.card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.card__icon--primary {
  background: rgba(255,215,0,0.12);
}

.card__icon .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 28px;
}

.card__title {
  margin-bottom: var(--space-4);
}

.card__text {
  font-size: 0.95rem;
  line-height: 1.65;
}

.card__tasks {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.card__task {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card__task::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--primary-dim);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================
   SECTION: Кейсы
   ============================================ */
.cases__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.case-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  border: 1px solid rgba(173,179,176,0.1);
}

.case-card--reverse {
  flex-direction: row-reverse;
}

.case-card__img {
  width: 38%;
  min-height: 320px;
  flex-shrink: 0;
}

.case-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card__content {
  padding: var(--space-10);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.case-card__tag {
  background: rgba(255,215,0,0.15);
  color: var(--on-surface);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.case-card__stats {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
  align-items: end;
}

.case-card__stat-label {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  margin-bottom: 0.25rem;
}

.case-card__stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.case-card__stat-value--accent {
  color: var(--primary-dim);
}

.case-card__progress {
  align-self: center;
}

.case-card__progress-label {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  margin-bottom: 0.5rem;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--surface-container);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

.case-card__quote {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--on-surface-variant);
}

.case-card__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.case-card__problem,
.case-card__solution {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--on-surface-variant);
  margin-bottom: var(--space-4);
}

.case-card__problem strong,
.case-card__solution strong {
  color: var(--on-surface);
  font-weight: 600;
}

/* Callout badge */
.callout-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255,215,0,0.1);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-top: var(--space-8);
  text-align: center;
  justify-content: center;
}

/* ============================================
   SECTION: Как я работаю (Timeline)
   ============================================ */
.process {
  background: var(--surface-container-low);
}

.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  width: 80%;
  height: 2px;
  background: rgba(255,215,0,0.2);
}

.timeline__step {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.timeline__icon {
  width: 64px;
  height: 64px;
  background: var(--surface-container-lowest);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--surface-container-low);
}

.timeline__icon .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 26px;
}

.timeline__title {
  font-size: 1.05rem;
  font-weight: 700;
}

.timeline__desc {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  padding: 0 var(--space-2);
  line-height: 1.5;
}

/* ============================================
   SECTION: Что входит в работу
   ============================================ */
.services-card {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--surface-container-low);
  transition: background var(--transition-base);
}

.services-card:hover {
  background: rgba(255,215,0,0.05);
}

.services-card .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 2rem;
  margin-bottom: var(--space-6);
  display: block;
}

.services-card h4 {
  margin-bottom: var(--space-4);
}

.services-card ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.services-card li {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  padding-left: var(--space-4);
  position: relative;
}

.services-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--primary-dim);
}

/* ============================================
   SECTION: Почему со мной выгодно
   ============================================ */
.why {
  background: var(--surface-container-low);
}

.why__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.why__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--transition-base);
}

.why__item:hover {
  box-shadow: var(--shadow-md);
}

.why__item-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: rgba(255,215,0,0.12);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.why__item-icon .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 24px;
}

.why__item h4 {
  margin-bottom: var(--space-2);
  font-size: 1.05rem;
}

.why__item p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ============================================
   SECTION: Форматы работы (Pricing)
   ============================================ */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  align-items: start;
}

.pricing-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(173,179,176,0.1);
  position: relative;
  transition: box-shadow var(--transition-base);
}

.pricing-card:hover {
  box-shadow: var(--shadow-md);
}

.pricing-card--featured {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-xl);
  transform: scale(1.04);
  z-index: 5;
}

.pricing-card--featured:hover {
  box-shadow: var(--shadow-xl);
}

.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--on-primary);
  padding: 0.3rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}

.pricing-card__name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.pricing-card__price {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: var(--space-8);
}

.pricing-card__price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--on-surface-variant);
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.9rem;
  color: var(--on-surface-variant);
}

.pricing-card__feature .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 20px;
}

.pricing-card__feature--highlight {
  font-weight: 600;
  color: var(--on-surface);
}

/* ============================================
   SECTION: FAQ
   ============================================ */
.faq {
  max-width: 760px;
  margin: 0 auto;
}

.faq__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq__item {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(173,179,176,0.05);
  cursor: pointer;
  transition: box-shadow var(--transition-base);
}

.faq__item:hover {
  box-shadow: var(--shadow-md);
}

.faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  text-align: left;
  font-weight: 700;
  font-size: 1rem;
  color: var(--on-surface);
  background: none;
  border: none;
  cursor: pointer;
  gap: var(--space-4);
}

.faq__question .material-symbols-outlined {
  color: var(--primary-dim);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq__item.active .faq__question .material-symbols-outlined {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq__item.active .faq__answer {
  max-height: 300px;
  padding-top: var(--space-4);
}

.faq__answer p {
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================
   SECTION: Lead Form (большая форма)
   ============================================ */
.lead-section {
  padding: var(--space-24) var(--space-8);
}

.lead-card {
  max-width: 1000px;
  margin: 0 auto;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-2xl);
  padding: var(--space-16);
  box-shadow: var(--shadow-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  position: relative;
  overflow: hidden;
}

.lead-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: rgba(255,215,0,0.1);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.lead-card__info {
  position: relative;
  z-index: 2;
}

.lead-card__info h2 {
  margin-bottom: var(--space-6);
}

.lead-card__info > p {
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.lead-card__contacts {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.lead-card__contact {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lead-card__contact-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,215,0,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lead-card__contact-icon .material-symbols-outlined {
  color: var(--primary-dim);
  font-size: 20px;
}

.lead-card__contact span {
  font-weight: 500;
}

.lead-card__form-wrap {
  position: relative;
  z-index: 2;
  background: var(--surface-container-low);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--surface-container);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  margin-top: var(--space-20);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-12) var(--space-8);
  max-width: var(--max-w);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.footer__brand {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
}

.footer__links {
  display: flex;
  gap: var(--space-8);
}

.footer__link {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  opacity: 0.8;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--primary-dim);
}

.footer__socials {
  display: flex;
  gap: var(--space-4);
}

.footer__social {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-container-lowest);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.footer__social:hover {
  color: var(--primary-dim);
}

.footer__social .material-symbols-outlined {
  font-size: 18px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.stagger > .fade-up:nth-child(1) { transition-delay: 0ms; }
.stagger > .fade-up:nth-child(2) { transition-delay: 100ms; }
.stagger > .fade-up:nth-child(3) { transition-delay: 200ms; }
.stagger > .fade-up:nth-child(4) { transition-delay: 300ms; }
.stagger > .fade-up:nth-child(5) { transition-delay: 400ms; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .cards-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .cards-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline {
    grid-template-columns: repeat(3, 1fr);
  }

  .timeline::before {
    display: none;
  }

  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .pricing-card--featured {
    transform: none;
  }

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

  .lead-card {
    grid-template-columns: 1fr;
    padding: var(--space-10);
  }

  .case-card {
    flex-direction: column !important;
  }

  .case-card__img {
    width: 100%;
    min-height: 200px;
    max-height: 280px;
  }

  .case-card__stats {
    grid-template-columns: auto auto;
  }
}

@media (max-width: 768px) {
  :root {
    --space-24: 4rem;
    --space-20: 3.5rem;
    --space-16: 3rem;
  }

  .container {
    padding: 0 var(--space-5);
  }

  .nav__links {
    display: none;
  }

  .nav__cta {
    display: none;
  }

  .nav__burger {
    display: flex;
  }

  .cards-grid--3,
  .cards-grid--4 {
    grid-template-columns: 1fr;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .timeline__step {
    flex-direction: row;
    text-align: left;
    gap: var(--space-5);
  }

  .timeline__icon {
    flex-shrink: 0;
  }

  .timeline__text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
  }

  .section__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .section__header p {
    text-align: left;
  }

  .hero__trust {
    flex-direction: column;
    gap: var(--space-2);
  }

  .hero__trust-divider {
    display: none;
  }

  .hero__contacts {
    flex-direction: column;
    gap: var(--space-3);
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
  }
}