/* ==========================================================================
   Квестильня — landing styles
   Concept: editorial print-workshop. Cool paper, ink, editor's vermilion,
   hairlines, sharp corners. One accent, locked. Light + dark via tokens.
   ========================================================================== */

/* ---------- tokens ---------- */
:root {
  --paper: #f0f0ec;
  --paper-2: #f7f7f4;
  --surface: #e6e6df;
  --ink: #14151a;
  --ink-2: #565862;
  --line: rgba(20, 21, 26, 0.16);
  --line-strong: rgba(20, 21, 26, 0.34);
  --accent: #c22e17;
  --accent-ink: #fbfaf6;
  --accent-soft: rgba(194, 46, 23, 0.1);
  --panel: #14151a;
  --panel-ink: #f0f0ec;

  --radius: 0px;
  --maxw: 1240px;
  --pad: clamp(20px, 5vw, 64px);
  --nav-h: 68px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: "Onest", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d0e11;
    --paper-2: #131519;
    --surface: #191b21;
    --ink: #ecedea;
    --ink-2: #9da0aa;
    --line: rgba(236, 237, 234, 0.16);
    --line-strong: rgba(236, 237, 234, 0.36);
    --accent: #ff5a3c;
    --accent-ink: #0d0e11;
    --accent-soft: rgba(255, 90, 60, 0.14);
    --panel: #1b1d23;
    --panel-ink: #ecedea;
  }
}

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

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-2);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }

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

h1, h2, h3 { color: var(--ink); margin: 0; }

p { margin: 0; }

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 12px; }

/* ---------- type ---------- */
.h2 {
  font-size: clamp(1.75rem, 1.1rem + 2.6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.06;
  max-width: 18ch;
}

.h3 {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.mono { font-family: var(--font-mono); }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad);
}

.section {
  padding-block: clamp(64px, 9vw, 128px);
  border-top: 1px solid var(--line);
}

.section__note {
  margin-top: 14px;
  font-size: 0.95rem;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease), transform 0.12s var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn--primary:hover { background: var(--panel); border-color: var(--panel); color: var(--panel-ink); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--ink); }

.btn--sm { padding: 10px 16px; font-size: 0.875rem; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand__mark { color: var(--accent); flex: none; }
.brand__name { font-size: 1.05rem; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
}
.nav__links a {
  position: relative;
  color: var(--ink-2);
  transition: color 0.2s ease;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__actions { display: flex; align-items: center; gap: 12px; }

.nav__cta-link { display: none; }

.nav__toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav__toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.2s ease;
}
.nav--open .nav__toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav--open .nav__toggle span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: center top;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 70% 0%, transparent 30%, var(--paper) 78%);
  pointer-events: none;
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 6vw, 72px);
  padding-block: clamp(48px, 7vw, 96px);
  align-items: center;
  min-height: calc(100svh - var(--nav-h));
}

.hero__copy { max-width: 46ch; }

.hero__eyebrow { margin-bottom: 20px; }

.hero__title {
  font-size: clamp(2.1rem, 1.3rem + 3.1vw, 3.55rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.03;
  text-wrap: balance;
}

.hero__sub {
  margin-top: 22px;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.15rem);
  max-width: 44ch;
  color: var(--ink-2);
}

.hero__cta {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* demo card */
.hero__stage { position: relative; }

.demo {
  background: var(--paper-2);
  border: 1px solid var(--line-strong);
  padding: clamp(20px, 2.6vw, 30px);
  box-shadow: 12px 12px 0 var(--accent-soft);
}

.demo__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.demo__tag {
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.demo__place { font-size: 0.72rem; color: var(--ink-2); }

.demo__text {
  margin-top: 20px;
  color: var(--ink);
  font-size: 1.02rem;
  line-height: 1.55;
  min-height: 4.6em;
}

.demo__choices {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

.choice {
  text-align: left;
  padding: 13px 16px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 0.925rem;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.choice::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  flex: none;
}
.choice:hover {
  border-color: var(--accent);
  padding-left: 20px;
}
.choice:active { transform: translateY(1px); }

.demo__foot {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.demo__path { font-size: 0.68rem; color: var(--ink-2); }

.demo__reset {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid currentColor;
}

.demo__hint {
  margin-top: 14px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  text-align: right;
}

.demo.is-switching .demo__text,
.demo.is-switching .demo__choices { opacity: 0; }
.demo__text,
.demo__choices { transition: opacity 0.22s ease; }

/* ---------- genres strip ---------- */
.strip {
  padding-block: clamp(40px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.strip__head { margin-bottom: 24px; }
.strip__head .h2 { font-size: clamp(1.4rem, 1rem + 1.4vw, 2rem); }

.strip__rail {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-inline: var(--pad);
  padding-bottom: 6px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.strip__rail span {
  scroll-snap-align: start;
  flex: none;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  font-size: 0.9rem;
  color: var(--ink);
  white-space: nowrap;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.strip__rail span:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

/* ---------- bento ---------- */
.bento {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.cell {
  border: 1px solid var(--line);
  padding: 28px;
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cell p { font-size: 0.95rem; }
.cell__num {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.cell--accent {
  background: var(--panel);
  border-color: var(--panel);
  color: var(--panel-ink);
}
.cell--accent h3 { color: var(--panel-ink); }
.cell--accent p { color: color-mix(in srgb, var(--panel-ink) 74%, transparent); }
.cell--accent .cell__num { color: var(--accent); }

.cell--tint {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 34%, transparent);
}

.cell--img { padding: 0; gap: 0; overflow: hidden; }
.cell__media { aspect-ratio: 4 / 3; width: 100%; }
.cell--img .cell__body { padding: 26px 28px 30px; display: flex; flex-direction: column; gap: 10px; }

/* Media slots. Photography lives in pics/ and fills the frame with object-fit: cover.
   For the editorial duotone look, add filter: grayscale(1) contrast(1.08) and a
   color-blend overlay on .media::after. */
.media { position: relative; overflow: hidden; background: var(--surface); }
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.cell--img:hover .media img,
.quest:hover .media img { transform: scale(1.03); }

/* ---------- steps ---------- */
.steps {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}
.step {
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.step__num {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.step p { font-size: 0.95rem; max-width: 40ch; }

/* ---------- quests ---------- */
.cards {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.quest {
  border: 1px solid var(--line);
  background: var(--paper-2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.quest__media { aspect-ratio: 4 / 5; }
.quest__body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; }
.quest__body p { font-size: 0.925rem; }

.tag {
  align-self: flex-start;
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  padding: 4px 9px;
}

/* ---------- quote ---------- */
.quote-section { padding-block: clamp(72px, 10vw, 140px); }
.quote {
  margin: 0;
  max-width: 58ch;
  border-left: 2px solid var(--accent);
  padding-left: clamp(20px, 3vw, 40px);
}
.quote__text {
  color: var(--ink);
  font-size: clamp(1.4rem, 1rem + 1.8vw, 2.35rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.22;
  text-wrap: pretty;
}
.quote__by {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.quote__name { color: var(--ink); font-weight: 600; }
.quote__role { font-size: 0.7rem; letter-spacing: 0.1em; color: var(--ink-2); }

/* ---------- formats ---------- */
.formats {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.format {
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.format p { font-size: 0.95rem; flex: 1; }
.format--featured {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
  background: var(--accent-soft);
}
.format__badge {
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.format__link {
  align-self: flex-start;
  color: var(--ink);
  font-weight: 500;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: color 0.2s ease, gap 0.2s ease;
}
.format__link:hover { color: var(--accent); }

/* ---------- contact ---------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.contact__sub { margin-top: 18px; max-width: 40ch; }
.contact__meta {
  margin-top: 26px;
  font-size: 0.72rem;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

.form { display: grid; gap: 20px; }
.field { display: grid; gap: 8px; }
.field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink);
}
.field input,
.field textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-2);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-2); opacity: 0.75; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] { border-color: var(--accent); }
.field__help { font-size: 0.8rem; color: var(--ink-2); }
.field__error { font-size: 0.8rem; color: var(--accent); }

.form__submit { justify-self: start; }
.form__success {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.form.is-sent .field,
.form.is-sent .form__submit { opacity: 0.5; pointer-events: none; }

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding-top: clamp(48px, 6vw, 72px);
  padding-bottom: 28px;
  background: var(--paper-2);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
.footer__tagline { margin-top: 14px; font-size: 0.9rem; max-width: 30ch; }
.footer__col { display: flex; flex-direction: column; gap: 10px; font-size: 0.92rem; }
.footer__head {
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-bottom: 4px;
}
.footer__col a { color: var(--ink-2); transition: color 0.2s ease; }
.footer__col a:hover { color: var(--accent); }
.footer__bottom {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--ink-2);
}
.footer__bottom .mono { font-size: 0.68rem; }

/* ---------- motion ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: no-preference) {
  .hero__eyebrow,
  .hero__title,
  .hero__sub,
  .hero__cta,
  .hero__stage {
    opacity: 0;
    animation: rise 0.8s var(--ease) forwards;
  }
  .hero__eyebrow { animation-delay: 0.05s; }
  .hero__title { animation-delay: 0.12s; }
  .hero__sub { animation-delay: 0.2s; }
  .hero__cta { animation-delay: 0.28s; }
  .hero__stage { animation-delay: 0.34s; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 899px) {
  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px var(--pad) 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .nav--open .nav__links { display: flex; }
  .nav__links a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav__links a::after { display: none; }
  .nav__toggle { display: flex; }
  .nav__inner .btn--sm { display: none; }
  .nav__cta-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 14px;
    padding: 13px 18px;
    background: var(--accent);
    color: var(--accent-ink);
    border-bottom: none;
    font-weight: 500;
  }
  .nav__cta-link:hover { background: var(--panel); color: var(--panel-ink); }
}

@media (min-width: 700px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  .formats { grid-template-columns: repeat(3, 1fr); }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .cell--tall { grid-row: span 2; }
  .cell--tall .cell__media { aspect-ratio: auto; flex: 1; min-height: 220px; }
  .cell--tall .cell__body { flex: none; }
  .footer__grid { grid-template-columns: 1.6fr 1fr 1fr; }
}

@media (min-width: 900px) {
  .hero__grid { grid-template-columns: 1.08fr 0.92fr; }
  .steps { grid-template-columns: repeat(4, 1fr); border-top: none; }
  .step {
    border-bottom: none;
    border-top: 1px solid var(--line);
    border-right: 1px solid var(--line);
    padding: 26px 24px 26px 0;
  }
  .step:last-child { border-right: none; }
  .step + .step { padding-left: 24px; }
  .contact__grid { grid-template-columns: 0.9fr 1.1fr; }
  .contact__form-wrap { justify-self: end; }
}

@media (min-width: 1024px) {
  .bento { grid-template-columns: repeat(3, 1fr); grid-auto-rows: minmax(190px, auto); }
}