/* ================================================
   FORUS IB — Landing Page Styles
   Modern B2B/SaaS static landing
   Cohesive narrative: Offer → Risk → Practice → Result → Action
   ================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand */
  --color-yellow: #EFB817;
  --color-yellow-hover: #D9A50F;
  --color-yellow-light: #FFF8E1;
  --color-blue: #1A56DB;
  --color-blue-hover: #1544B0;
  --color-blue-light: #EFF4FF;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Typography */
  --font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* 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;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-glow-yellow: 0 0 20px rgba(239, 184, 23, 0.2);

  /* Layout */
  --container-max: 1360px;
  --header-height: 72px;

  /* Animations — calm & premium */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --duration-fast: 0.25s;
  --duration-normal: 0.4s;
  --duration-slow: 0.6s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

html {
  background: #f7f9fc;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background:
  radial-gradient(ellipse 980px 560px at 8% 8%, rgba(239, 184, 23, 0.14), transparent 62%),
  radial-gradient(ellipse 980px 600px at 88% 10%, rgba(26, 86, 219, 0.11), transparent 62%),
  radial-gradient(ellipse 900px 560px at 78% 45%, rgba(239, 184, 23, 0.08), transparent 64%),
  radial-gradient(ellipse 820px 560px at 12% 72%, rgba(26, 86, 219, 0.07), transparent 64%),
  radial-gradient(ellipse 900px 560px at 88% 92%, rgba(239, 184, 23, 0.07), transparent 66%),
  linear-gradient(180deg, rgba(255, 255, 255, 0.78) 0%, rgba(248, 250, 252, 0.90) 45%, rgba(255, 255, 255, 0.82) 100%),
  url("../images/bg-abstract-light.webp") top center / 1700px auto no-repeat,
  #f7f9fc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

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

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

/* ================================================
   SCROLL ANIMATIONS — calm & smooth
   ================================================ */

[data-animate] {
  opacity: 0;
  transition:
    opacity 0.8s var(--ease-out-expo),
    transform 0.8s var(--ease-out-expo);
  will-change: opacity, transform;
}

[data-animate="fade-up"] {
  transform: translateY(30px);
}

[data-animate="fade-left"] {
  transform: translateX(35px);
}

[data-animate="fade-right"] {
  transform: translateX(-35px);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ---------- Hero entrance animations ---------- */
.animate-hero {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 1s var(--ease-out-expo),
    transform 1s var(--ease-out-expo);
  will-change: opacity, transform;
}

.animate-hero.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-visual.animate-hero {
  transform: translateX(35px) scale(0.97);
}

.hero-visual.animate-hero.is-visible {
  opacity: 1;
  transform: translateX(0) scale(1);
}

/* ================================================
   BUTTONS
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: var(--font-size-base);
  line-height: 1.4;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition:
    background-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    transform 0.2s ease;
  white-space: nowrap;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-yellow);
  color: var(--color-gray-900);
  border-color: var(--color-yellow);
  padding: 0.75rem 1.75rem;
}

.btn-primary:hover {
  background-color: var(--color-yellow-hover);
  border-color: var(--color-yellow-hover);
  box-shadow: var(--shadow-md), var(--shadow-glow-yellow);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

/* ================================================
   BRAND / LOGO
   ================================================ */
.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--duration-fast) ease;
}

.brand:hover {
  opacity: 0.8;
}

.brand-logo {
  height: 32px;
  width: auto;
}

/* ================================================
   HEADER
   ================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  height: var(--header-height);
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    background-color var(--duration-fast) ease;
}

.header.scrolled {
  border-bottom-color: var(--color-gray-200);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.97);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-6);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) ease, background-color var(--duration-fast) ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: var(--space-3);
  right: var(--space-3);
  height: 2px;
  background-color: var(--color-yellow);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform var(--duration-normal) var(--ease-out-expo);
  transform-origin: center;
}

.nav-link:hover {
  color: var(--color-gray-900);
  background-color: var(--color-gray-100);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 1px;
}

.nav-cta-mobile {
  display: none;
}

.header-cta {
  padding: 0.5rem 1.25rem;
  font-size: var(--font-size-sm);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) ease;
}

.menu-toggle:hover {
  background-color: var(--color-gray-100);
}

.menu-toggle:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 1px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-gray-700);
  border-radius: 2px;
  transition: transform 0.35s var(--ease-out-expo), opacity 0.35s ease;
  transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ================================================
   HERO — confident, left-aligned
   ================================================ */
.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: transparent;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
  linear-gradient(
    100deg,
    rgba(255, 255, 255, 0.82) 0%,
    rgba(255, 255, 255, 0.48) 48%,
    rgba(255, 255, 255, 0.08) 100%
  ),
  radial-gradient(circle at 18% 58%, rgba(239, 184, 23, 0.18), transparent 30%),
  radial-gradient(circle at 82% 22%, rgba(26, 86, 219, 0.15), transparent 32%),
  radial-gradient(circle at 84% 76%, rgba(239, 184, 23, 0.12), transparent 28%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: var(--space-16);
  align-items: center;
  padding-top: var(--space-16);
  padding-bottom: var(--space-20);
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-gray-900);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-gray-700);
  margin-bottom: var(--space-4);
}

.hero-desc {
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 540px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-700);
  background-color: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.badge:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-yellow);
}

/* Accent badge variant */
.badge--accent {
  background-color: var(--color-yellow-light);
  border-color: var(--color-yellow);
  color: var(--color-gray-900);
}

.badge img {
  width: 20px;
  height: 20px;
}

.hero-cta {
  margin-bottom: var(--space-3);
}

.hero-microcopy {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.hero-visual {
  position: relative;
}

/* Soft glow behind hero image */
.hero-visual::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 90%;
  height: 90%;
  transform: translate(-50%, -50%);
  background:
    radial-gradient(ellipse, rgba(239,184,23,0.12) 0%, transparent 60%),
    radial-gradient(ellipse, rgba(26,86,219,0.08) 0%, transparent 55%);
  filter: blur(30px);
  z-index: -1;
  pointer-events: none;
}

.hero-image {
  width: 100%;
  border-radius: var(--radius-2xl);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: transform 0.5s var(--ease-out-expo), box-shadow 0.5s ease;
}

.hero-visual:hover .hero-image {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* ================================================
   SECTIONS — Common (left-aligned)
   ================================================ */
.section {
  padding: var(--space-20) 0;
  position: relative;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-gray-900);
  text-align: left;
  max-width: 720px;
  margin: 0 0 var(--space-4);
  letter-spacing: -0.015em;
  position: relative;
}

/* Accent line under section titles — left-aligned */
.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-yellow);
  border-radius: 2px;
  margin: var(--space-4) 0 0;
}

/* Section lead — narrative connector integrated into section */
.section-lead {
  text-align: left;
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 760px;
  margin: 0 0 var(--space-10);
  line-height: 1.65;
}

.section-subtitle {
  text-align: left;
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  max-width: 760px;
  margin: 0 0 var(--space-6);
  line-height: 1.65;
}

/* ---------- Importance note — additional explanatory text ---------- */
.section-importance-note {
  text-align: left;
  font-size: var(--font-size-base);
  color: var(--color-gray-600);
  max-width: 680px;
  margin: 0 0 var(--space-10);
  line-height: 1.65;
}

/* ---------- Section backgrounds — unified canvas ---------- */
.section-importance,
.section-value,
.section-process,
.section-start {
  position: relative;
  background: transparent;
}

/* Local soft accents without full-width colored stripes */
.section-start {
  position: relative;
  isolation: isolate;
  background: transparent;
  overflow: hidden;
}

.section-start::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 780px 420px at 18% 24%, rgba(239, 184, 23, 0.12), transparent 62%),
    radial-gradient(ellipse 760px 420px at 84% 70%, rgba(26, 86, 219, 0.08), transparent 64%);
  border: 0;
  box-shadow: none;
  border-radius: 0;
}

/* ================================================
   IMPORTANCE — КЗИ / 117 + Типовые сценарии
   ================================================ */
.cases-section {
  margin-top: var(--space-12);
}

.cases-heading {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-gray-900);
  text-align: left;
  margin-bottom: var(--space-4);
  line-height: 1.3;
}

.cases-intro {
  text-align: left;
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  max-width: 680px;
  margin: 0 0 var(--space-8);
  line-height: 1.6;
}

/* ---------- Cases Slider ---------- */
.cases-slider-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.cases-slider {
  overflow: hidden;
  flex: 1;
  border-radius: var(--radius-xl);
  -webkit-overflow-scrolling: touch;
}

.cases-slider-track {
  display: flex;
  gap: var(--space-6);
  transition: transform 0.5s var(--ease-out-expo);
  will-change: transform;
}

.cases-slider.dragging .cases-slider-track {
  transition: none;
}

.case-card {
  flex: 0 0 calc((100% - var(--space-6) * 2) / 3);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition:
    box-shadow 0.35s var(--ease-out-expo),
    transform 0.35s var(--ease-out-expo),
    border-color 0.3s ease;
}

.case-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: rgba(239, 184, 23, 0.25);
}

.case-card-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.case-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.5s var(--ease-out-expo);
}

.case-card:hover .case-card-image img {
  transform: scale(1.03);
}

.case-card-content {
  padding: var(--space-5) var(--space-6) var(--space-6);
}

.case-card-category {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-blue);
  background-color: var(--color-blue-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.case-card-title {
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.case-card-scenario {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.55;
  margin-bottom: var(--space-4);
}

.case-card-badge {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-yellow-light);
  border-left: 3px solid var(--color-yellow);
  border-radius: var(--radius-md);
}

.case-card-badge-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-yellow-hover);
}

/* КЗИ plaque variant — blue accent */
.case-card-badge--kzi {
  background-color: var(--color-blue-light);
  border-left-color: var(--color-blue);
}

.case-card-badge--kzi .case-card-badge-label {
  color: var(--color-blue);
}

.case-card-badge-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  line-height: 1.5;
}

/* Slider arrows */
.cases-slider-arrow {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-600);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition:
    background-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    transform var(--duration-fast) ease;
}

.cases-slider-arrow:hover {
  background-color: var(--color-yellow);
  color: var(--color-gray-900);
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-md), var(--shadow-glow-yellow);
  transform: scale(1.05);
}

.cases-slider-arrow:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
}

.cases-slider-arrow:disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

.cases-slider-arrow svg {
  width: 20px;
  height: 20px;
}

/* ================================================
   VALUE — Что вы получите после самооценки
   Strong hierarchy: main result → audiences → FSTEK note
   ================================================ */

/* Main result block — prominent, not cards */
.value-main {
  margin-bottom: var(--space-10);
}

.value-main-label {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-gray-400);
  margin-bottom: var(--space-6);
}

.value-main-items {
  display: flex;
  flex-direction: column;
  gap: 0;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.value-main-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  padding: var(--space-6) var(--space-8);
  transition: background-color var(--duration-fast) ease;
}

.value-main-item:not(:last-child) {
  border-bottom: 1px solid var(--color-gray-100);
}

.value-main-item:hover {
  background-color: var(--color-gray-50);
}

.value-main-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-yellow-light);
  transition: transform 0.3s var(--ease-out-expo);
}

.value-main-item:hover .value-main-icon {
  transform: scale(1.05);
}

.value-main-icon img {
  width: 28px;
  height: 28px;
}

.value-main-body {
  flex: 1;
  padding-top: var(--space-1);
}

.value-main-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.value-main-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.55;
}

/* Audience callouts — compact, secondary */
.value-audiences {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.value-audience {
  padding: var(--space-6) var(--space-8);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  border-top: 3px solid var(--color-yellow);
}

.value-audience-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-gray-400);
  margin-bottom: var(--space-3);
}

.value-audience-highlight {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
  line-height: 1.4;
  padding-left: var(--space-4);
  border-left: 3px solid var(--color-yellow);
}

.value-audience-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* FSTEK note — as a clear value statement, not a grey disclaimer */
.value-fstek-note {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  line-height: 1.6;
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-yellow-light);
  border-left: 3px solid var(--color-yellow);
  border-radius: var(--radius-md);
  max-width: 800px;
}

/* ================================================
   PROCESS — Как проходит оценка
   ================================================ */
.process-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
  align-items: start;
}

.process-side-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-6);
  line-height: 1.3;
}

/* Directions list */
.process-directions {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.process-directions li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: var(--color-gray-700);
  line-height: 1.5;
}

.process-directions li img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

/* Process steps */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.process-step {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.process-step-number {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-yellow-light);
  color: var(--color-gray-900);
  font-size: var(--font-size-lg);
  font-weight: 800;
  border: 2px solid var(--color-yellow);
}

.process-step-content {
  flex: 1;
  padding-top: var(--space-1);
}

.process-step-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.process-step-text {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.5;
}

/* ================================================
   FINAL CTA — Start section (centered, confident)
   ================================================ */
.start-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.start-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-900);
  margin-bottom: var(--space-6);
  letter-spacing: -0.015em;
}

.start-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-yellow);
  border-radius: 2px;
  margin: var(--space-4) auto 0;
}

.start-text {
  font-size: var(--font-size-lg);
  color: var(--color-gray-600);
  line-height: 1.6;
  margin-bottom: var(--space-8);
}

.start-microcopy {
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  line-height: 1.5;
}

.start-limitation {
  margin-top: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  line-height: 1.5;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* ================================================
   BACK TO TOP
   ================================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-600);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition:
    opacity var(--duration-normal) ease,
    visibility var(--duration-normal) ease,
    transform var(--duration-normal) var(--ease-out-expo),
    background-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-yellow);
  color: var(--color-gray-900);
  border-color: var(--color-yellow);
  box-shadow: var(--shadow-md), var(--shadow-glow-yellow);
  transform: translateY(-1px);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
}

/* ================================================
   FOOTER — Soft light style
   ================================================ */
.footer {
  background: rgba(255, 255, 255, 0.58);
  border-top: 1px solid rgba(229, 231, 235, 0.72);
  padding: var(--space-10) 0;
  backdrop-filter: blur(10px);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
}

.footer-brand {
  display: flex;
  align-items: center;
}

.footer-logo {
  height: 28px;
  width: auto;
}

.footer-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  max-width: 480px;
  line-height: 1.6;
}


/* ================================================
   RESPONSIVE — Tablet (<=1024px)
   ================================================ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

  .hero-title {
    font-size: var(--font-size-4xl);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .section-lead {
    font-size: var(--font-size-base);
  }

  .section-subtitle {
    font-size: var(--font-size-base);
  }

  /* Cases slider: 2 visible on tablet */
  .case-card {
    flex: 0 0 calc((100% - var(--space-6)) / 2);
  }

  .case-card-image {
    height: 180px;
  }

  /* Value main items: smaller padding */
  .value-main-item {
    padding: var(--space-5) var(--space-6);
  }

  /* Audience callouts: stack on tablet */
  .value-audiences {
    grid-template-columns: 1fr;
  }

  .value-audience {
    padding: var(--space-5) var(--space-6);
  }

  /* Process */
  .process-card {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .process-left {
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
  }
}

/* ================================================
   RESPONSIVE — Mobile (<=768px)
   ================================================ */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .container {
    padding: 0 var(--space-6);
  }

  .brand-logo {
    height: 28px;
  }

  /* Mobile nav */
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    padding: var(--space-6);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease-out-expo);
    z-index: 99;
    overflow-y: auto;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: var(--space-1);
  }

  .nav-link {
    font-size: var(--font-size-lg);
    padding: var(--space-3) var(--space-4);
  }

  .nav-link::after {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .nav-cta-mobile {
    display: inline-flex;
    margin-top: var(--space-6);
    width: 100%;
    justify-content: center;
  }

  .menu-toggle {
    display: flex;
  }

  /* Hero — on mobile: text first, image last */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .hero-badges {
    gap: var(--space-2);
  }

  .badge {
    font-size: var(--font-size-xs);
    padding: var(--space-1) var(--space-3);
  }

  .badge img {
    width: 16px;
    height: 16px;
  }

  /* Hero visual goes AFTER content on mobile (default order) */
  .hero-visual {
    order: 1;
  }

  /* Section spacing */
  .section {
    padding: var(--space-16) 0;
  }

  /* On mobile, center section titles for readability */
  .section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-4);
    text-align: center;
  }

  .section-title::after {
    margin-left: auto;
    margin-right: auto;
  }

  .section-lead {
    text-align: center;
    font-size: var(--font-size-base);
  }

  .section-subtitle {
    text-align: center;
    font-size: var(--font-size-base);
  }

  .section-importance-note {
    text-align: center;
    font-size: var(--font-size-sm);
  }

  /* Cases slider: 1 visible on mobile */
  .case-card {
    flex: 0 0 100%;
  }

  .case-card-image {
    height: 180px;
  }

  /* Slider arrows: hide on mobile, rely on swipe */
  .cases-slider-arrow {
    display: none;
  }

  .cases-slider-wrapper {
    gap: 0;
  }

  .cases-slider {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .cases-slider::-webkit-scrollbar {
    display: none;
  }

  .cases-slider-track {
    transition: none;
  }

  .case-card {
    scroll-snap-align: start;
  }

  /* Cases heading */
  .cases-heading {
    font-size: var(--font-size-xl);
    text-align: center;
  }

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

  /* Value block — mobile */
  .value-main-item {
    padding: var(--space-4) var(--space-5);
    gap: var(--space-3);
  }

  .value-main-icon {
    width: 40px;
    height: 40px;
  }

  .value-main-icon img {
    width: 22px;
    height: 22px;
  }

  .value-main-title {
    font-size: var(--font-size-sm);
  }

  .value-main-text {
    font-size: var(--font-size-xs);
  }

  /* Audience callouts: stack on mobile */
  .value-audiences {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .value-audience {
    padding: var(--space-5);
  }

  .value-audience-highlight {
    font-size: var(--font-size-sm);
  }

  .value-audience-text {
    font-size: var(--font-size-xs);
  }

  .value-fstek-note {
    font-size: var(--font-size-xs);
    padding: var(--space-3) var(--space-4);
  }

  /* Process */
  .process-card {
    padding: var(--space-6);
  }

  .process-side-title {
    font-size: var(--font-size-base);
  }

  .process-directions li {
    font-size: var(--font-size-sm);
  }

  .process-directions li img {
    width: 28px;
    height: 28px;
  }

  /* Start / Final CTA */
  .start-title {
    font-size: var(--font-size-2xl);
  }

  .start-title::after {
    margin-left: auto;
    margin-right: auto;
  }

  .start-text {
    font-size: var(--font-size-base);
  }

  /* Back to top */
  .back-to-top {
    bottom: var(--space-5);
    right: var(--space-5);
    width: 40px;
    height: 40px;
  }
}

/* ================================================
   RESPONSIVE — Small mobile (<=480px)
   ================================================ */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
  }

  .section-title {
    font-size: var(--font-size-xl);
  }

  .start-title {
    font-size: var(--font-size-xl);
  }

  .cases-heading {
    font-size: var(--font-size-lg);
  }

  .section-lead {
    font-size: var(--font-size-sm);
  }

  .section-subtitle {
    font-size: var(--font-size-sm);
  }

  .footer-logo {
    height: 24px;
  }
}

/* ================================================
   REDUCED MOTION
   ================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .animate-hero {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}