/* «Умное Дело» — главная страница. Мобильный первый, без сборщика. */

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
}

img,
svg,
canvas {
  max-width: 100%;
  display: block;
}

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--fs-h1);
}

h2 {
  font-size: var(--fs-h2);
}

h3 {
  font-size: var(--fs-h3);
}

p {
  margin: 0 0 var(--space-3);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  margin-bottom: var(--space-2);
}

.section {
  padding-block: var(--space-8);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--dark {
  background: var(--color-dark-bg);
  color: var(--color-text-on-dark);
}

.section--dark .eyebrow {
  color: var(--accent-400);
}

.section-head {
  max-width: 40rem;
  margin-bottom: var(--space-6);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.lead {
  font-size: var(--fs-lead);
  color: var(--color-text-muted);
}

.section--dark .lead {
  color: var(--color-text-on-dark-muted);
}

/* --- Кнопки -------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-body);
  text-decoration: none;
  padding: 0.9em 1.6em;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

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

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

.btn--accent {
  background: var(--color-accent);
  color: #fff8f0;
  box-shadow: var(--shadow-tight);
}

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

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

.section--dark .btn--ghost,
.hero .btn--ghost {
  border-color: var(--color-border-on-dark);
  color: var(--color-text-on-dark);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-strong);
}

.btn--sm {
  padding: 0.6em 1.2em;
  font-size: var(--fs-small);
}

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

/* --- Хедер ---------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-2);
  background: rgba(250, 246, 239, 0.86);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--dur-normal) var(--ease-out);
}

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

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  text-decoration: none;
  color: var(--color-text);
}

.wordmark svg {
  height: 1.6rem;
  width: auto;
}

.main-nav {
  display: none;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
  font-weight: 600;
  font-size: var(--fs-small);
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  transition: color var(--dur-fast) var(--ease-out);
}

.main-nav a:hover {
  color: var(--color-accent-strong);
}

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

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
}

.nav-toggle svg {
  width: 1.25rem;
  height: 1.25rem;
}

@media (min-width: 900px) {
  .main-nav {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
}

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: var(--color-dark-bg);
  color: var(--color-text-on-dark);
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  transform: translateY(-100%);
  transition: transform var(--dur-normal) var(--ease-out);
}

.mobile-nav.is-open {
  transform: translateY(0);
}

.mobile-nav__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav__close {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-on-dark);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.mobile-nav ul {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  font-family: var(--font-display);
  font-size: var(--fs-h3);
}

.mobile-nav a {
  text-decoration: none;
  color: inherit;
}

/* --- Hero ------------------------------------------------------------------ */

.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-dark-bg);
  color: var(--color-text-on-dark);
  padding-block: var(--space-7) var(--space-8);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__tag {
  color: var(--accent-400);
}

.hero h1 {
  max-width: 20ch;
}

.hero .lead {
  max-width: 42ch;
}

.hero-forks {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

@media (min-width: 760px) {
  .hero-forks {
    grid-template-columns: 1fr 1fr;
  }
}

.fork-card {
  position: relative;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-on-dark);
  background: rgba(250, 246, 239, 0.05);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.fork-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.fork-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff8f0;
}

.fork-card__icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.fork-card p {
  color: var(--color-text-on-dark-muted);
  flex: 1;
}

/* --- Стата / шаги ----------------------------------------------------------- */

.steps {
  display: grid;
  gap: var(--space-4);
  counter-reset: step;
}

@media (min-width: 700px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step {
  position: relative;
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-2);
}

.stat-row {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
  text-align: center;
}

@media (min-width: 700px) {
  .stat-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  color: var(--color-accent-strong);
}

.stat span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-top: 0.25em;
}

/* --- Сторис персон ---------------------------------------------------------- */

.stories {
  display: grid;
  gap: var(--space-3);
}

.stories__tray {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scrollbar-width: none;
}

.stories__tray::-webkit-scrollbar {
  display: none;
}

.stories__avatar {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

.stories__avatar-ring {
  width: 4.25rem;
  height: 4.25rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-500), var(--accent-ochre));
  padding: 3px;
}

.stories__avatar-ring svg {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--color-surface);
  padding: 0.7rem;
  color: var(--color-accent-strong);
}

.stories__avatar[aria-current="true"] {
  color: var(--color-accent-strong);
}

.stories__avatar:not([aria-current="true"]) .stories__avatar-ring {
  background: var(--color-border);
  opacity: 0.6;
}

.story-viewer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(23, 27, 23, 0.92);
  padding: var(--space-3);
}

.story-viewer.is-open {
  display: flex;
}

.story-card {
  position: relative;
  width: min(26rem, 100%);
  aspect-ratio: 9 / 16;
  max-height: 90vh;
  background: var(--graphite-800);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
}

.story-card__progress {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 0.35rem;
  padding: var(--space-2) var(--space-3) 0;
}

.story-card__progress-bar {
  flex: 1;
  height: 3px;
  border-radius: var(--radius-pill);
  background: rgba(250, 246, 239, 0.25);
  overflow: hidden;
}

.story-card__progress-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--color-text-on-dark);
  border-radius: inherit;
}

.story-card__progress-bar.is-done span {
  width: 100%;
}

.story-card__progress-bar.is-active span {
  animation: story-progress var(--story-duration, 5s) linear forwards;
}

@keyframes story-progress {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

.story-card__header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-small);
  font-weight: 700;
}

.story-card__close {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: none;
  background: rgba(250, 246, 239, 0.12);
  color: inherit;
  cursor: pointer;
}

.story-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-4);
}

.story-card__kicker {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--accent-400);
}

.story-card__body h3 {
  font-size: var(--fs-h3);
}

.story-card__body p {
  color: var(--color-text-on-dark-muted);
}

.story-card__nav {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
}

.story-card__nav button {
  flex: 1;
  background: transparent;
  border: none;
  cursor: pointer;
}

.story-card__footer {
  position: relative;
  z-index: 2;
  padding: var(--space-3) var(--space-4) var(--space-4);
}

/* --- Ниши ------------------------------------------------------------------ */

.niche-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 700px) {
  .niche-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.niche-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.niche-card svg {
  width: 2rem;
  height: 2rem;
  color: var(--color-accent);
}

/* --- Партнёрская программа --------------------------------------------------- */

.partner-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 760px) {
  .partner-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

.partner-points {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.partner-points li {
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
}

.partner-points svg {
  flex: 0 0 auto;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-accent);
  margin-top: 0.15em;
}

.partner-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-dark-bg);
  color: var(--color-text-on-dark);
}

.partner-card .btn {
  margin-top: var(--space-4);
}

/* --- FAQ -------------------------------------------------------------------- */

.faq {
  display: grid;
  gap: var(--space-2);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}

.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  text-align: left;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-body);
  cursor: pointer;
  color: var(--color-text);
}

.faq-item__q svg {
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  transition: transform var(--dur-fast) var(--ease-out);
  color: var(--color-accent);
}

.faq-item[open] .faq-item__q svg {
  transform: rotate(45deg);
}

.faq-item__a {
  padding: 0 var(--space-4) var(--space-4);
  color: var(--color-text-muted);
}

/* --- Доверие / контур -------------------------------------------------------- */

.trust-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

@media (min-width: 700px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.trust-item {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-on-dark);
}

.trust-item svg {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--accent-400);
  margin-bottom: var(--space-2);
}

.manifesto {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  max-width: 32ch;
  margin-top: var(--space-5);
}

/* --- Футер -------------------------------------------------------------------- */

.site-footer {
  padding-block: var(--space-6);
  background: var(--color-dark-bg);
  color: var(--color-text-on-dark-muted);
  font-size: var(--fs-small);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  align-items: flex-start;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
}

.footer-links a {
  text-decoration: none;
  color: inherit;
}

.footer-links a:hover {
  color: var(--color-text-on-dark);
}

/* --- Скролл-reveal ------------------------------------------------------------ */

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}