/* ============================================================
   中古バスコン買取フォーム LP
   Design tokens
   ============================================================ */
:root {
  --bg-deep: #0F241F;
  --bg-panel: #16302B;
  --bg-panel-alt: #1F3D35;
  --cream: #F4EFE2;
  --cream-dim: #D8CFB8;
  --ink: #17170F;
  --amber: #D9A441;
  --rust: #BF5B3D;
  --line: rgba(244, 239, 226, 0.16);
  --line-strong: rgba(244, 239, 226, 0.3);

  --font-display: "Oswald", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-mono: "JetBrains Mono", "Noto Sans JP", monospace;

  --radius-sm: 6px;
  --radius-md: 14px;
  --container: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--cream);
  font-family: var(--font-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--cream);
}

.eyebrow {
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--amber);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--amber);
  display: inline-block;
}

/* ============================================================
   Road-dash divider — signature motif, reused between sections
   ============================================================ */
.road-divider {
  height: 34px;
  background-image: repeating-linear-gradient(
    to right,
    var(--amber) 0 28px,
    transparent 28px 52px
  );
  background-position: center;
  background-repeat: repeat-x;
  background-size: 52px 4px;
  opacity: 0.55;
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: relative;
  background: linear-gradient(180deg, #0B1D19 0%, var(--bg-panel) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.site-header__inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
}

.site-header__badge { width: 56px; height: 56px; flex-shrink: 0; }

.site-header__title {
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  line-height: 1.3;
}

.site-header__title small {
  display: block;
  font-family: var(--font-mono);
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.7rem;
  color: var(--cream-dim);
  margin-top: 4px;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 62vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--bg-deep);
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

/* Layered parallax scene ------------------------------------- */
.hero__scene {
  position: absolute;
  inset: -8% 0 -6% 0; /* extra bleed so layer drift never exposes edges */
  overflow: hidden;
}

.hero__layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  will-change: transform;
}

.hero__layer--sun {
  transition: transform 0.05s linear;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,36,31,0.15) 0%, rgba(11,29,25,0.55) 55%, #0B1D19 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-bottom: 56px;
}

.hero h1 {
  font-size: clamp(2.1rem, 5.6vw, 3.8rem);
  line-height: 1.15;
  margin-top: 16px;
  text-shadow: 0 2px 18px rgba(0,0,0,0.4);
}

.hero p {
  max-width: 500px;
  margin-top: 18px;
  color: var(--cream);
  font-size: 1.02rem;
}

.hero__cta {
  margin-top: 30px;
  display: inline-flex;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 15px 34px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn-primary {
  background: var(--amber);
  color: var(--ink);
  box-shadow: 0 10px 28px rgba(217,164,65,0.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(217,164,65,0.36); }
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--cream);
  border: 1px solid var(--line-strong);
}
.btn-outline:hover { border-color: var(--amber); color: var(--amber); }

/* ============================================================
   Sections generic
   ============================================================ */
section { position: relative; }

.section-pad { padding: 84px 0; }

.intro {
  background: var(--bg-deep);
}

.intro__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.intro h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  margin-top: 14px;
}

.intro__lede {
  font-size: 1.08rem;
  color: var(--cream);
}

.intro__body p { color: var(--cream-dim); margin: 0 0 16px; }

.intro__stats {
  display: grid;
  gap: 18px;
}

.stat {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.stat .num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  color: var(--amber);
  display: block;
}
.stat .label {
  font-size: 0.85rem;
  color: var(--cream-dim);
}

/* ============================================================
   Preferred conditions — checklist
   ============================================================ */
.preferences { background: var(--bg-deep); }

.preferences__head { max-width: 62ch; }
.preferences__head h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin-top: 14px; }
.preferences__head p { color: var(--cream-dim); margin-top: 14px; }

.checklist {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
  max-width: 780px;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-panel-alt);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  color: var(--cream);
  font-size: 0.98rem;
  line-height: 1.7;
}

.checklist__mark {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 1px;
}

/* ============================================================
   Buyback conditions — spec plates
   ============================================================ */
.conditions { background: var(--bg-panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.conditions__head { max-width: 62ch; }
.conditions__head h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin-top: 14px; }
.conditions__head p { color: var(--cream-dim); margin-top: 14px; }

.plates {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.plate {
  background: var(--bg-panel-alt);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  padding: 32px 30px;
  position: relative;
}

.plate::before {
  content: "";
  position: absolute;
  top: 22px;
  right: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--rust);
}

.plate__type {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--amber);
  text-transform: uppercase;
}

.plate h3 {
  font-size: 1.5rem;
  margin-top: 8px;
}

.plate__specs {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
}

.plate__spec {
  min-width: 120px;
}

.plate__spec .val {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--cream);
  display: block;
  line-height: 1.1;
}
.plate__spec .val span { font-size: 1rem; color: var(--amber); margin-left: 3px; }
.plate__spec .cap {
  font-size: 0.8rem;
  color: var(--cream-dim);
  margin-top: 4px;
}

.plate__note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-strong);
  font-size: 0.9rem;
  color: var(--cream-dim);
}

.conditions__footnote {
  margin-top: 28px;
  font-size: 0.85rem;
  color: var(--cream-dim);
  display: flex;
  gap: 10px;
}
.conditions__footnote strong { color: var(--amber); }

/* ============================================================
   Form
   ============================================================ */
.form-section { background: var(--bg-deep); }

.form-section__head { max-width: 60ch; margin: 0 auto 44px; text-align: center; }
.form-section__head h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin-top: 14px; }
.form-section__head p { color: var(--cream-dim); margin-top: 14px; }

.form-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  padding: 44px;
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 26px;
}

.form-row--split {
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.form-row--split .field { margin-bottom: 0; }

label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--cream-dim);
  display: flex;
  gap: 6px;
  align-items: baseline;
}

label .required {
  color: var(--rust);
  font-size: 0.72rem;
  border: 1px solid var(--rust);
  border-radius: 3px;
  padding: 1px 6px;
  letter-spacing: 0.02em;
}

label .optional {
  color: var(--cream-dim);
  font-size: 0.72rem;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 1px 6px;
}

input, textarea, select {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 13px 14px;
  margin-top: 8px;
}

textarea { resize: vertical; min-height: 100px; }

input::placeholder, textarea::placeholder { color: rgba(216,207,184,0.45); }

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(217,164,65,0.18);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%23D9A441' stroke-width='2' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  margin-top: 8px;
}

.field-hint {
  font-size: 0.78rem;
  color: rgba(216,207,184,0.65);
  margin-top: 2px;
}

/* Yes/No radio pills (喫煙履歴・動物飼育履歴・事故歴など) */
.radio-group {
  display: flex;
  gap: 12px;
  max-width: 303px;
}
.radio-group--inline {

}

.radio-pill {
  position: relative;
  flex: 1;
  cursor: pointer;
}

.radio-pill input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.radio-pill span {
  display: block;
  text-align: center;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--bg-deep);
  color: var(--cream-dim);
  font-size: 0.95rem;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.radio-pill input:checked + span {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  font-weight: 600;
}

.radio-pill input:focus-visible + span {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.form-card .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
  font-size: 1.05rem;
  padding: 17px 34px;
}

.form-privacy {
  text-align: center;
  font-size: 0.78rem;
  color: var(--cream-dim);
  margin-top: 18px;
}

/* Server-side validation error banner */
.form-alert {
  background: rgba(191, 91, 61, 0.14);
  border: 1px solid var(--rust);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin-bottom: 26px;
}
.form-alert__title {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--rust);
  margin: 0 0 8px;
  font-size: 0.95rem;
}
.form-alert ul {
  margin: 0;
  padding-left: 1.2em;
  color: var(--cream);
  font-size: 0.9rem;
}
.form-alert li + li { margin-top: 4px; }

/* Honeypot field — hidden from real users, left open for bots */
.form-hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: #0B1D19;
  border-top: 1px solid var(--line);
  padding: 30px 0;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--cream-dim);
  font-family: var(--font-mono);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .intro__grid { grid-template-columns: 1fr; gap: 32px; }
  .plates { grid-template-columns: 1fr; }
  .form-row--split { grid-template-columns: 1fr; gap: 18px; }
  .form-card { padding: 30px 22px; }
  .section-pad { padding: 60px 0; }
  .hero { min-height: 70vh; }
}

@media (max-width: 520px) {
  .site-header__inner { padding: 18px 18px; gap: 14px; }
  .site-header__badge { width: 44px; height: 44px; }
  .plate { padding: 26px 22px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* ============================================================
   Scroll reveal (slide-in blocks)
   ============================================================ */
.reveal {
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--reveal-delay, 0s);
}

.reveal--up    { transform: translateY(32px); }
.reveal--left  { transform: translateX(-40px); }
.reveal--right { transform: translateX(40px); }

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

/* Bus: slides in from off-screen right once, then stays put —
   no longer tied to scroll, so it can never "sink" with the sun. */
.hero__layer--bus.reveal {
  opacity: 0;
  transform: translateX(38%);
  transition: transform 1.1s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 1.1s ease;
}
.hero__layer--bus.reveal.is-visible {
  opacity: 1;
  transform: translateX(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__layer { transition: none !important; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}