/* Секции: решения (бенто), «почему сейчас» (тёмный остров), процесс, вопросы */

/* --- Решения --- */
.bento {
  display: grid;
  gap: var(--space-sm);
}

.bento__card {
  position: relative;
  display: grid;
  gap: var(--space-md);
  align-content: start;
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.bento__card:hover {
  transform: translateY(-6px);
}

.bento__body {
  display: grid;
  gap: var(--space-sm);
  justify-items: start;
}

.bento__card p {
  max-width: 34rem;
}

.bento__card--platform {
  background:
    radial-gradient(28rem 18rem at 100% 100%, rgb(86 144 243 / 0.28), transparent 70%),
    var(--glass-bg);
}

.bento__card--control {
  background:
    radial-gradient(24rem 14rem at 0% 100%, rgb(47 197 154 / 0.2), transparent 70%),
    var(--glass-bg);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.tags li {
  padding: 0.3125rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-line);
  background: rgb(255 255 255 / 0.6);
  font-size: var(--text-small);
  font-weight: 450;
  color: var(--color-ink-soft);
}

.checks {
  display: grid;
  gap: var(--space-xs);
}

.checks li {
  display: flex;
  gap: var(--space-xs);
  align-items: flex-start;
  font-weight: 450;
  color: var(--color-ink);
}

.checks .icon {
  margin-top: 0.1875rem;
  color: var(--color-ok-500);
}

/* Схема «площадка в центре» */
.hub {
  width: 100%;
  max-width: 26rem;
  justify-self: center;
  color: var(--color-brand-600);
  font-size: 0.6875rem;
  font-weight: 500;
}

.hub use {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hub__links path,
.hub__orbit {
  fill: none;
  stroke: var(--color-brand-400);
  stroke-width: 1;
  stroke-dasharray: 3 5;
  opacity: 0.7;
}

.hub__node circle {
  fill: var(--color-white);
  stroke: rgb(36 96 212 / 0.18);
}

.hub__node text {
  fill: var(--color-ink-soft);
  text-anchor: middle;
}

.hub__core circle {
  fill: var(--color-brand-600);
}

.hub__core use {
  color: var(--color-white);
}

/* Мини-дашборд */
.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xs);
}

.stat {
  display: grid;
  gap: var(--space-2xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  background: rgb(255 255 255 / 0.66);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-tile);
}

.stat__label {
  font-size: var(--text-caption);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.stat__spark {
  width: 100%;
  height: 1.75rem;
  fill: none;
  stroke: var(--color-ok-500);
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stat--down .stat__spark {
  stroke: var(--color-attention-500);
}

@media (min-width: 48rem) {
  .bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .bento__card--platform { grid-column: span 7; }
  .bento__card--auto { grid-column: span 5; }
  .bento__card--audit { grid-column: span 5; }
  .bento__card--control { grid-column: span 7; }

  .stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  .bento__card--platform {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

/* --- Почему сейчас: тёмный остров в стилистике тёмных образцов --- */
.why {
  padding-block: clamp(1rem, 0.5rem + 2vw, 2.5rem);
}

.why__island {
  position: relative;
  margin-inline: clamp(0.5rem, 0.1rem + 1.4vw, 1.5rem);
  padding-block: var(--space-section);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(60rem 32rem at 85% -10%, rgb(131 86 251 / 0.42), transparent 65%),
    radial-gradient(46rem 28rem at -5% 110%, rgb(62 124 233 / 0.32), transparent 65%),
    linear-gradient(180deg, var(--color-night-900), var(--color-night-800));
  color: var(--color-night-muted);
  overflow: hidden;
  isolation: isolate;
}

/* Светящаяся дуга — как на тёмных образцах */
.why__glow {
  position: absolute;
  top: -58rem;
  right: -34rem;
  z-index: -1;
  width: 90rem;
  height: 90rem;
  border-radius: 50%;
  border: 1px solid rgb(185 177 255 / 0.5);
  box-shadow: 0 0 5rem rgb(131 86 251 / 0.45), inset 0 0 5rem rgb(131 86 251 / 0.25);
  /* Дуга растворяется к левому краю */
  -webkit-mask-image: linear-gradient(to left, #000 25%, transparent 70%);
  mask-image: linear-gradient(to left, #000 25%, transparent 70%);
  pointer-events: none;
}

.why__head {
  display: grid;
  gap: var(--space-md);
  margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4.5rem);
}

.why :focus-visible {
  outline-color: var(--color-violet-300);
}

.why .caption-line {
  color: var(--color-violet-300);
}

.why .caption-line::before {
  background: var(--gradient-night);
}

.why__title {
  color: var(--color-night-text);
  font-weight: 650;
}

.why__years {
  display: block;
  margin-bottom: 0.08em;
  font-size: var(--text-giant);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.045em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  background: var(--gradient-night);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.why .section__lead {
  max-width: 44rem;
  color: var(--color-night-text);
}

.why__grid {
  display: grid;
  gap: var(--space-sm);
}

.why-card {
  display: grid;
  gap: var(--space-sm);
  align-content: start;
  padding: clamp(1.5rem, 1rem + 1.6vw, 2.25rem);
  border-radius: var(--radius-lg);
  background: var(--glass-night-bg);
  border: 1px solid var(--glass-night-border);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.12);
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.why-card:hover {
  transform: translateY(-6px);
}

.why-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.why-card__index {
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: var(--tracking-caption);
  color: var(--color-violet-300);
}

.why-card h3 {
  color: var(--color-night-text);
}

.why__footer {
  display: grid;
  gap: var(--space-md);
  justify-items: start;
  margin-top: clamp(2.5rem, 1.5rem + 3vw, 4rem);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--glass-night-border);
}

.why__closing {
  max-width: 40rem;
  font-size: var(--text-h3);
  font-weight: 450;
  line-height: 1.35;
  color: var(--color-night-text);
}

@media (min-width: 48rem) {
  .why__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* Вторая колонка сдвинута вниз — шахматный ритм вместо ровной сетки */
  .why-card:nth-child(even) {
    translate: 0 2.5rem;
  }

  .why__footer {
    grid-template-columns: 1fr auto;
    align-items: center;
    margin-top: calc(clamp(2.5rem, 1.5rem + 3vw, 4rem) + 2.5rem);
  }
}

/* --- Процесс --- */
.steps {
  position: relative;
  display: grid;
  gap: var(--space-lg);
  counter-reset: step;
}

.step {
  position: relative;
  display: grid;
  gap: var(--space-xs);
  align-content: start;
  counter-increment: step;
}

.step::before {
  content: '0' counter(step);
  font-size: clamp(3rem, 2rem + 3.5vw, 5rem);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.04em;
  background: var(--gradient-headline);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.step__note {
  justify-self: start;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-ok-wash);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-ok-700);
}

.zero-note {
  display: grid;
  gap: var(--space-sm);
  margin-top: clamp(2.5rem, 1.5rem + 3vw, 4.5rem);
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  border-radius: var(--radius-lg);
}

.zero-note__text {
  font-size: var(--text-h3);
  font-weight: 450;
  line-height: 1.35;
  color: var(--color-ink);
}

@media (min-width: 48rem) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .zero-note {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: var(--space-md);
  }
}

@media (min-width: 64rem) {
  /* Пунктир-маршрут над шагами, на нём — точки этапов */
  .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-md);
    padding-top: var(--space-lg);
    border-top: 1.5px dashed rgb(36 96 212 / 0.3);
  }

  .step::after {
    content: '';
    position: absolute;
    top: calc(var(--space-lg) * -1 - 0.5rem);
    left: 0;
    width: 0.875rem;
    height: 0.875rem;
    border-radius: 50%;
    background: var(--gradient-brand);
    box-shadow: 0 0 0 5px rgb(86 144 243 / 0.2);
  }
}

/* --- Вопросы --- */
.faq__layout {
  display: grid;
  gap: var(--space-lg);
}

.faq__aside {
  display: grid;
  gap: var(--space-md);
  align-content: start;
  justify-items: start;
}

.faq__list {
  display: grid;
  gap: var(--space-xs);
}

.faq-item {
  border-radius: var(--radius-md);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: inherit;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary:hover {
  color: var(--color-brand-700);
}

.faq-item__sign {
  position: relative;
  flex: none;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: var(--shadow-tile);
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.faq-item__sign::before,
.faq-item__sign::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.75rem;
  height: 2px;
  border-radius: 1px;
  background: var(--color-brand-600);
  transform: translate(-50%, -50%);
}

.faq-item__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

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

.faq-item__answer {
  padding: 0 var(--space-md) var(--space-md);
  max-width: 44rem;
}

@media (min-width: 64rem) {
  .faq__layout {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 1rem + 3vw, 5rem);
  }

  .faq__aside {
    position: sticky;
    top: var(--header-offset);
  }
}