/* ============================================================
   BASE, TYPOGRAPHY AND LAYOUT
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--space-4));
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-ink-soft);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

/* --- Headings --- */
h1,h2,h3,h4,h5,h6 {
  margin: 0 0 var(--space-4);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-heading);
  letter-spacing: -.015em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p {
  margin: 0 0 var(--space-4);
  max-width: 72ch;
  text-wrap: pretty;
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              background var(--dur-fast) var(--ease);
}
a:hover { color: var(--color-berry); }

/* ============================================================
   MEDIA — БАЗОВЫЕ ПРАВИЛА
   ============================================================ */

/* Общее правило для всех картинок и SVG */
img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Картинки внутри плейсхолдеров и hero-блоков —
   растягиваем на весь блок и слегка растворяем края */
.media-placeholder img,
.placeholder img,
.placeholder--wide img,
.placeholder--wide picture img,
.page-hero__media img,
.page-hero__media picture img,
.hero__media img,
.hero__media picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  margin: 0;

  /* мягкие растворяющиеся края — деликатно */
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    #000 78%,
    transparent 100%
  );
  mask-image: radial-gradient(
    ellipse at center,
    #000 78%,
    transparent 100%
  );
}

/* Hero-фон в виде background-image на псевдоэлементах —
   тоже растворяем края */
.hero--media::after,
.page-hero__media::after {
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    #000 78%,
    transparent 100%
  );
  mask-image: radial-gradient(
    ellipse at center,
    #000 78%,
    transparent 100%
  );
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

ul, ol { margin: 0 0 var(--space-4); padding-left: var(--space-5); }

:focus-visible { outline: 2px solid var(--color-blue); outline-offset: 3px; }
::selection { color: #fff; background: var(--color-blue); }

/* ============================================================
   LAYOUT CONTAINERS
   ============================================================ */

.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin: 0 auto;
}
.container--narrow { max-width: var(--container-narrow); }

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -4rem;
  background: var(--color-blue);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  z-index: 1000;
}
.skip-link:focus { top: var(--space-3); color: #fff; }

/* ============================================================
   SECTIONS
   ============================================================ */

.section {
  padding: clamp(2rem, 4vw, 3.5rem) 0;
  border-top: 1px solid var(--color-line);
  background: #fff;
}
.section--tight { padding: clamp(2.5rem, 5vw, 4rem) 0; }
.section--soft { background: #fff; }

.section-head {
  margin-bottom: var(--space-7);
  max-width: 780px;
}
.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-3);
  color: var(--color-ink-muted);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
}

.section-num {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-blue);
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.8vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
}

.lead {
  margin: 0;
  max-width: 66ch;
  color: var(--color-ink-soft);
  font-size: var(--fs-lead);
}

/* ============================================================
   UTILITIES
   ============================================================ */

.accent      { color: var(--color-blue); }
.text-blue   { color: var(--color-blue); }
.text-green  { color: var(--color-green); }
.text-berry  { color: var(--color-berry); }
.text-muted  { color: var(--color-ink-muted); }
.dot         { color: var(--color-berry); }

/* ============================================================
   GRID
   ============================================================ */

.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* ============================================================
   LISTS
   ============================================================ */

.bullet-list { padding: 0; list-style: none; }
.bullet-list li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: var(--space-2);
}
.bullet-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .63em;
  width: 6px;
  height: 6px;
  background: var(--color-berry);
  border-radius: 50%;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: .7rem 1.15rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}
.btn--primary { color: #fff; background: var(--color-blue); border-color: var(--color-blue); }
.btn--primary:hover { color: #fff; background: var(--color-blue-dark); border-color: var(--color-blue-dark); }

.btn--secondary,
.btn--ghost { color: var(--color-ink); background: #fff; border-color: var(--color-ink); }
.btn--secondary:hover,
.btn--ghost:hover { color: #fff; background: var(--color-ink); }

.btn--berry { color: #fff; background: var(--color-berry); border-color: var(--color-berry); }
.btn--berry:hover { color: #fff; background: var(--color-berry-dark); }

.btn--arrow::after { content: '→'; font-size: 1.1em; }

/* ============================================================
   ICONS
   ============================================================ */

.icon {
  width: 34px;
  height: 34px;
  color: var(--color-blue);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

/* ============================================================
   MEDIA PLACEHOLDERS
   Картинка занимает 100% ширины и высоты блока
   ============================================================ */

.media-placeholder,
.placeholder,
.placeholder--wide {
  display: block;
  position: relative;
  overflow: hidden;
  padding: 0;
  min-height: 260px;
  border: 1px solid var(--color-line);
  background: linear-gradient(135deg, #EDE6DC, #F7F4EF);
  color: var(--color-ink-muted);
  text-align: center;
  font-size: var(--fs-small);
}

.media-placeholder { aspect-ratio: 4 / 3; }
.placeholder--wide { aspect-ratio: 16 / 9; width: 100%; }

/* Картинка внутри плейсхолдера */
.media-placeholder img,
.placeholder img,
.placeholder--wide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  margin: 0;
}

/* Если плейсхолдер пустой (без картинки) — текст по центру */
.media-placeholder:empty,
.placeholder:empty,
.placeholder--wide:empty {
  display: grid;
  place-items: center;
  padding: var(--space-5);
}

/* Если внутри picture — picture тоже растягиваем */
.placeholder--wide picture,
.media-placeholder picture {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

/* Hero-блоки — обрезаем то, что выходит за границы */
.page-hero__media,
.hero__media {
  overflow: hidden;
}

/* ============================================================
   CARD PADDING — внутренние отступы, чтобы контент не лип к краю
   ============================================================ */

.metric,
.icon-card,
.card,
.brand-choice__item {
  padding: var(--space-5);
}

/* На узких экранах чуть меньше — чтобы не съедало место */
@media (max-width: 620px) {
  .metric,
  .icon-card,
  .card,
  .brand-choice__item {
    padding: var(--space-4);
  }
}

/* ============================================================
   METRICS — цифры и единицы измерения
   ============================================================ */

.metric__value {
  display: flex;
  align-items: center;
  gap: 0.1em;
  white-space: nowrap;
  font-size: clamp(0.95rem, 1.3vw, 1.4rem);
  line-height: 1;
}

/* текстовые значения (не числа) */
.metric__value--text {
  display: block;
  font-size: clamp(0.8rem, 1vw, 1.05rem);
  font-weight: 500;
  line-height: 1.2;
  white-space: normal;   /* разрешаем перенос */
  overflow-wrap: anywhere;
  hyphens: auto;
}

/* двухэтажная единица измерения справа от числа */
.metric__unit {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  font-size: 0.27em;
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: 0.01em;
  opacity: 0.55;
  text-align: left;
}

.metric__unit span {
  white-space: nowrap;
}

/* ============================================================
   REVEAL (заглушка анимации)
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Каскадная задержка для групп элементов */
.reveal--delay-1 { transition-delay: 0.08s; }
.reveal--delay-2 { transition-delay: 0.16s; }
.reveal--delay-3 { transition-delay: 0.24s; }
.reveal--delay-4 { transition-delay: 0.32s; }

/* Уважение к настройкам пользователя */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 900px) {
  .grid--4, .grid--6 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .container { width: min(100% - 2rem, var(--container-max)); }
  .section { padding: var(--space-8) 0; }
  .grid--2, .grid--3, .grid--4, .grid--6 { grid-template-columns: 1fr; }
  .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}