@charset "UTF-8";

/* ==========================================================================
   ab429 — студия
   Дом ахроматичный и тихий. Цвет и характер приносит приложение:
   каждая плитка и каждая продуктовая страница выставляют свой --accent.
   ========================================================================== */

:root {
  /* Светлая база: холодный нейтральный, намеренно не «кремовый». */
  --bg: #eeeff2;
  --surface: #fafbfc;
  --ink: #15171c;
  --ink-2: #5d636d;
  --ink-3: #878d97;
  --line: #d7dae0;
  --line-soft: #e3e6ea;

  /* Дом сам по себе бесцветен. */
  --accent: #15171c;
  --accent-ink: #fafbfc;

  --font-display: "Unbounded", "Golos", system-ui, sans-serif;
  --font-body: "Golos", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JBMono", ui-monospace, "SF Mono", Menlo, monospace;

  --radius: 14px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101216;
    --surface: #171a1f;
    --ink: #e9ebef;
    --ink-2: #949aa4;
    --ink-3: #6b7280;
    --line: #272b32;
    --line-soft: #1f232a;
    --accent: #e9ebef;
    --accent-ink: #101216;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #101216;
  --surface: #171a1f;
  --ink: #e9ebef;
  --ink-2: #949aa4;
  --ink-3: #6b7280;
  --line: #272b32;
  --line-soft: #1f232a;
  --accent: #e9ebef;
  --accent-ink: #101216;
  color-scheme: dark;
}

/* Иконка перелетает из сетки в шапку приложения. Chrome и Safari 18+,
   остальные просто получают обычный переход. */
@view-transition {
  navigation: auto;
}

/* --- сброс ------------------------------------------------------------- */

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

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

body {
  margin: 0;
  overflow-wrap: break-word;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

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

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 6px;
}

.wrap {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* --- шапка ------------------------------------------------------------- */

.top {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(1.6) blur(14px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}

.top.is-stuck {
  border-bottom-color: var(--line-soft);
}

.top__in {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  height: 64px;
}

.brand {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  margin-right: auto;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}

.brand span {
  color: var(--ink-3);
}

.brand em {
  font-style: normal;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-left: 1px solid var(--line);
  padding-left: 0.5rem;
}

.top a.tlink,
.top button {
  font-size: 0.86rem;
  color: var(--ink-2);
  transition: color 0.2s var(--ease);
}

.top a.tlink:hover,
.top button:hover {
  color: var(--ink);
}

@media (max-width: 620px) {
  .top__in {
    gap: 0.9rem;
  }
  .top a.tlink[data-track] {
    display: none;
  }
  .brand em {
    display: none;
  }
}

.theme-toggle {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-2);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.theme-toggle:hover {
  border-color: var(--ink-3);
}

.theme-toggle svg {
  width: 15px;
  height: 15px;
}

:root[data-theme="dark"] .icon-moon,
:root:not([data-theme="light"]) .icon-moon {
  display: none;
}

:root[data-theme="light"] .icon-moon {
  display: block;
}

:root[data-theme="light"] .icon-sun {
  display: none;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .icon-moon {
    display: block;
  }
  :root:not([data-theme="dark"]) .icon-sun {
    display: none;
  }
}

/* --- герой ------------------------------------------------------------- */

.hero {
  padding: clamp(4rem, 12vh, 7.5rem) 0 clamp(2.5rem, 6vh, 4rem);
}

.hero__mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3.2rem, 11vw, 7rem);
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.hero__mark span {
  color: var(--ink-3);
}

.hero__kind {
  margin-top: 0.9rem;
  font-size: 0.78rem;
  letter-spacing: 0.34em;
  color: var(--ink-2);
}

.hero__intro {
  margin-top: 1.8rem;
  max-width: 44ch;
  font-size: clamp(1.02rem, 1.9vw, 1.2rem);
  color: var(--ink-2);
  line-height: 1.55;
}

/* --- домашний экран: приложения плиткой -------------------------------- */

.shelf {
  padding-bottom: clamp(4rem, 10vh, 7rem);
}

.shelf__label {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.apps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem) clamp(1rem, 3vw, 2rem);
}

@media (min-width: 640px) {
  .apps {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .apps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.app {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  padding-bottom: 0.5rem;
}

/* Плитка-сквиркл: та же геометрия, что у иконки на домашнем экране. */
.app__tile {
  position: relative;
  display: block;
  width: 100%;
  max-width: 150px;
  aspect-ratio: 1;
  border-radius: 23.5%;
  overflow: hidden;
  transition: transform 0.45s var(--spring), box-shadow 0.45s var(--ease-out);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.18), 0 10px 24px rgba(0, 0, 0, 0.14);
}

.app__icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app:hover .app__tile,
.app:focus-visible .app__tile {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.2),
    0 22px 50px color-mix(in srgb, var(--accent) 34%, transparent);
}

.app:active .app__tile {
  transform: translateY(-4px) scale(0.99);
  transition-duration: 0.12s;
}

.app__label {
  margin-top: 0.85rem;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: color 0.3s var(--ease);
}

.app:hover .app__label {
  color: var(--accent);
}

.app__meta {
  margin-top: 0.25rem;
  font-size: 0.62rem;
  letter-spacing: 0.09em;
}

/* Подпись раскрывается на месте, не сдвигая соседние плитки. */
.app__card {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s var(--ease-out);
  width: 100%;
}

.app__card > span {
  overflow: hidden;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--ink-2);
  opacity: 0;
  transition: opacity 0.35s var(--ease) 0.06s;
}

.app:hover .app__card,
.app:focus-visible .app__card {
  grid-template-rows: 1fr;
}

.app:hover .app__card > span,
.app:focus-visible .app__card > span {
  opacity: 1;
  padding-top: 0.7rem;
}

/* Пустое место: экран честно показывает, что он ещё заполняется. */
.app__tile--empty {
  display: grid;
  place-items: center;
  border: 1.5px dashed var(--line);
  box-shadow: none;
  background: color-mix(in srgb, var(--ink) 2%, transparent);
}

.app__tile--empty span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink-3);
  opacity: 0.5;
}

.app--empty .app__label {
  color: var(--ink-3);
}

/* --- искра поверх иконки: у каждого приложения своя -------------------- */

.spark {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Суфлёр: его собственная звуковая волна оживает при наведении. */
.spark--wave {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 6.5%;
  padding: 0 30% 12%;
}

.spark--wave i {
  flex: 1;
  height: 12%;
  border-radius: 99px;
  background: #6be08c;
  opacity: 0;
  transform-origin: bottom;
  transition: opacity 0.3s var(--ease);
}

.app:hover .spark--wave i,
.app:focus-visible .spark--wave i {
  opacity: 1;
  animation: wave 0.9s var(--ease) infinite alternate;
  animation-delay: calc(var(--i) * 0.07s);
}

@keyframes wave {
  from {
    transform: scaleY(1);
  }
  to {
    transform: scaleY(3.4);
  }
}

/* --- шапка приложения --------------------------------------------------- */

.p-hero {
  padding: clamp(2.5rem, 7vh, 4.5rem) 0 clamp(2rem, 5vh, 3.5rem);
}

.p-back {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  color: var(--ink-3);
  margin-bottom: clamp(2rem, 5vh, 3rem);
  transition: color 0.2s var(--ease);
}

.p-back:hover {
  color: var(--ink);
}

.p-back svg {
  width: 14px;
  height: 14px;
}

.p-hero__in {
  display: flex;
  align-items: flex-start;
  gap: clamp(1.5rem, 4vw, 3rem);
  flex-wrap: wrap;
}

.p-icon {
  width: clamp(84px, 12vw, 132px);
  height: auto;
  border-radius: 23.5%;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2),
    0 18px 44px color-mix(in srgb, var(--accent) 26%, transparent);
}

.p-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 8vw, 4.6rem);
  letter-spacing: -0.05em;
  line-height: 0.95;
  color: var(--accent);
}

.p-tag {
  margin-top: 1.1rem;
  font-size: clamp(1.12rem, 2.4vw, 1.5rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  max-width: 26ch;
}

.p-lede {
  margin-top: 1.3rem;
  max-width: 48ch;
  color: var(--ink-2);
}

.p-actions {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-wrap: wrap;
  margin-top: 2.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.7rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 500;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
  box-shadow: 0 4px 18px color-mix(in srgb, var(--accent) 30%, transparent);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 38%, transparent);
}

.btn svg {
  width: 17px;
  height: 17px;
}

.btn--soon {
  background: transparent;
  color: var(--ink-2);
  border: 1px dashed var(--line);
  box-shadow: none;
  cursor: default;
}

.btn--soon:hover {
  transform: none;
  box-shadow: none;
}

.p-actions__note {
  font-size: 0.88rem;
  color: var(--ink-3);
  line-height: 1.5;
  max-width: 40ch;
}

.p-actions__note strong {
  display: block;
  margin-top: 0.5rem;
  font-weight: 400;
  color: var(--ink-2);
}

.p-actions__note a {
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
}

.p-actions__note a:hover {
  color: var(--ink);
}

/* --- возможности -------------------------------------------------------- */

.feats {
  padding: clamp(3rem, 8vh, 5rem) 0;
  border-top: 1px solid var(--line);
}

.feats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 2rem;
}

@media (min-width: 620px) {
  .feats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .feats__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feat {
  background: var(--surface);
  padding: 1.8rem 1.6rem;
  transition: background 0.3s var(--ease);
}

.feat:hover {
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
}

.feat h3 {
  font-size: 1.06rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin-bottom: 0.6rem;
}

.feat p {
  font-size: 0.94rem;
  color: var(--ink-2);
  line-height: 1.55;
}

/* --- разметка сценария -------------------------------------------------- */

.markup {
  padding: clamp(3rem, 8vh, 5rem) 0;
  border-top: 1px solid var(--line);
}

.markup__cols {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
  margin-top: 2rem;
}

@media (max-width: 760px) {
  .markup__cols {
    grid-template-columns: 1fr;
  }
}

.markup__intro {
  color: var(--ink-2);
  margin-bottom: 1.2rem;
}

.markup__privacy {
  margin-top: 2rem;
}

.code {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.75;
  white-space: pre;
  overflow-x: auto;
  color: var(--ink-2);
  margin: 0;
}

.code b {
  color: var(--ink);
  font-weight: 500;
}

/* Подсветка ==фразы== — тот самый маркер из самого приложения. */
.code mark {
  background: color-mix(in srgb, var(--accent) 26%, transparent);
  color: var(--ink);
  padding: 0.1em 0.25em;
  border-radius: 3px;
}

.legend {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.legend div {
  background: var(--surface);
  padding: 0.95rem 1.2rem;
}

.legend code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  display: block;
  margin-bottom: 0.2rem;
}

.legend span {
  font-size: 0.88rem;
  color: var(--ink-2);
}

/* --- подвал ------------------------------------------------------------- */

.foot {
  border-top: 1px solid var(--line);
  padding: clamp(2.5rem, 6vh, 4rem) 0 3rem;
}

.foot__in {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
}

.foot__links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.foot__links a {
  font-size: 0.95rem;
  color: var(--ink-2);
  position: relative;
  transition: color 0.2s var(--ease);
}

.foot__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.foot__links a:hover {
  color: var(--ink);
}

.foot__links a:hover::after {
  transform: scaleX(1);
}

.foot__note {
  font-size: 0.8rem;
  color: var(--ink-3);
  max-width: 40ch;
  line-height: 1.5;
}

/* --- появление ---------------------------------------------------------- */

.rise {
  opacity: 0;
  transform: translateY(14px);
}

.rise.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.apps .rise.is-in {
  transition-delay: calc(var(--n, 0) * 0.07s);
}

.stagger > * {
  opacity: 0;
  transform: translateY(16px);
  animation: rise-in 0.9s var(--ease-out) forwards;
}

.stagger > *:nth-child(1) {
  animation-delay: 0.05s;
}
.stagger > *:nth-child(2) {
  animation-delay: 0.16s;
}
.stagger > *:nth-child(3) {
  animation-delay: 0.27s;
}

@keyframes rise-in {
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
  .rise,
  .stagger > * {
    opacity: 1;
    transform: none;
  }
  @view-transition {
    navigation: none;
  }
}