:root {
  --bg: #f6f5f1;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hi: #fbfaf6;
  --border: #e5e3dc;
  --border-hi: #c8c5bc;
  --fg: #0c0c10;
  --fg-dim: #4a4a55;
  --muted: #8a8a96;
  --accent: #ff3e1f;
  --accent-hi: #ff6a4a;
  --accent-soft: rgba(255, 62, 31, 0.08);
  --ink: #1746ff;
  --ink-soft: rgba(23, 70, 255, 0.07);
  --amber: #e88c00;

  --font-jp: "Noto Sans JP", system-ui, sans-serif;
  --font-en: "Space Grotesk", system-ui, sans-serif;
  --font-display: "Zen Dots", "Space Grotesk", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: var(--font-jp); }
body {
  min-height: 100vh;
  background-image:
    radial-gradient(circle at 92% 4%, rgba(255, 62, 31, 0.08), transparent 36%),
    radial-gradient(circle at 6% 96%, rgba(23, 70, 255, 0.06), transparent 40%),
    linear-gradient(180deg, #f7f6f2 0%, #eeede7 100%);
  background-attachment: fixed;
  padding: 48px 6vw 80px;
  overflow-x: hidden;
}

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(12,12,16,0.08) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.35;
  z-index: 1;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  max-width: 1180px;
  margin: 0 auto 56px;
  padding-left: 8px;
  z-index: 2;
}
.hero__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.hero__dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(255, 62, 31, 0.5);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}
.hero__kicker {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.28em;
  color: var(--fg-dim);
  text-transform: uppercase;
}
.hero__title {
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: clamp(28px, 4.2vw, 52px);
  line-height: 1.25;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.hero__title em {
  font-style: normal;
  color: var(--ink);
  font-weight: 700;
}
.hero__title-accent {
  font-family: var(--font-display);
  font-size: 0.92em;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.hero__desc {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.8;
  max-width: 640px;
  margin: 0;
}
.hero__desc strong { color: var(--accent); font-weight: 700; letter-spacing: 0.04em; }

/* ===== Input Panel ===== */
.panel {
  position: relative;
  max-width: 1180px;
  margin: 0 auto 48px;
  z-index: 2;
}
.input {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 28px 32px 24px;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  box-shadow: 0 4px 22px rgba(12, 12, 16, 0.04);
}
.input::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 22px; height: 22px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: 0.9;
}
.input__label {
  display: block;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--muted);
  margin-bottom: 12px;
}
.input__row {
  display: flex;
  gap: 12px;
  align-items: stretch;
}
.input__field {
  flex: 1;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-en);
  font-size: 17px;
  padding: 14px 18px;
  outline: none;
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s;
}
.input__field:focus {
  border-color: var(--accent);
  background: #ffffff;
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.input__field::placeholder { color: var(--muted); }
.btn-forge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #ffffff;
  border: none;
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.22em;
  padding: 0 28px;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, box-shadow 0.2s;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.btn-forge:hover:not(:disabled) {
  background: var(--accent-hi);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(255, 62, 31, 0.3);
}
.btn-forge:disabled { opacity: 0.6; cursor: wait; }
.btn-forge__arrow { font-size: 18px; }

.input__help {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
  font-family: var(--font-en);
}
.chip {
  background: transparent;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-size: 12px;
  font-family: var(--font-en);
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Timeline / Steps ===== */
.timeline {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  z-index: 2;
}
.timeline__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 28px;
}

.step {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 26px 28px 28px;
  position: relative;
  opacity: 0.55;
  transition: opacity 0.4s ease, border-color 0.4s, box-shadow 0.4s, transform 0.4s;
  box-shadow: 0 2px 10px rgba(12, 12, 16, 0.03);
}
.step::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--border);
  transition: background 0.3s;
}
.step[data-status="start"] {
  opacity: 1;
  border-color: var(--border-hi);
  box-shadow: 0 6px 24px rgba(255, 62, 31, 0.08);
}
.step[data-status="start"]::before {
  background: var(--accent);
  animation: runningBar 1.4s linear infinite;
}
@keyframes runningBar {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}
.step[data-status="done"] {
  opacity: 1;
  border-color: rgba(23, 70, 255, 0.25);
  box-shadow: 0 4px 16px rgba(23, 70, 255, 0.06);
}
.step[data-status="done"]::before {
  background: var(--ink);
}

.step__index {
  font-family: var(--font-display);
  font-size: 38px;
  color: var(--border-hi);
  line-height: 1;
  padding-top: 4px;
  transition: color 0.3s;
}
.step[data-status="start"] .step__index { color: var(--accent); }
.step[data-status="done"] .step__index { color: var(--ink); }

.step__core { min-width: 0; }
.step__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--border);
  padding-bottom: 14px;
}
.step__title {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.1em;
  margin: 0;
  color: var(--fg);
}
.step__sub {
  font-family: var(--font-jp);
  font-weight: 400;
  font-size: 13px;
  color: var(--fg-dim);
  margin-left: 12px;
  letter-spacing: 0;
}
.step__status {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--muted);
  padding: 4px 10px;
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-soft);
}
.step[data-status="start"] .step__status {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
  animation: pulseBorder 1.2s ease-in-out infinite;
}
@keyframes pulseBorder {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft); }
  50% { box-shadow: 0 0 0 4px var(--accent-soft); }
}
.step[data-status="done"] .step__status {
  color: var(--ink);
  border-color: var(--ink);
  background: var(--ink-soft);
}

/* ===== Fields ===== */
.step__body { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--muted);
  text-transform: uppercase;
}
.field__val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
  padding: 10px 12px;
  background: var(--bg);
  border-left: 2px solid var(--border);
  min-height: 40px;
  transition: border-color 0.3s;
}
.field__val--big {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.field__val--hook {
  font-family: var(--font-jp);
  font-size: 14px;
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--accent-soft);
  font-weight: 600;
}
.field--full { grid-column: 1 / -1; }
.field__pre {
  margin: 0;
  padding: 14px 16px;
  background: var(--bg);
  border-left: 2px solid var(--border);
  font-family: var(--font-jp);
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--fg);
  max-height: 480px;
  overflow-y: auto;
}
.field__pre--mail { border-left-color: var(--ink); background: var(--ink-soft); }

.step[data-status="done"] .field__val,
.step[data-status="done"] .field__pre { border-left-color: var(--ink); }
.step[data-status="done"] .field__val--hook { border-left-color: var(--accent); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 720px) {
  .grid-2 { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; }
  .step__index { font-size: 28px; }
}

/* ===== Tags ===== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px 0;
}
.tag-list .tag {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(255, 62, 31, 0.2);
}
.tag-list--ghost .tag {
  background: var(--bg-soft);
  color: var(--fg-dim);
  border-color: var(--border);
}

/* ===== Issues list ===== */
.issues {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.issues .issue {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
}
.issues .issue__num {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--amber);
  line-height: 1;
  padding-top: 4px;
}
.issues .issue__title {
  font-weight: 700;
  font-size: 15px;
  margin: 0 0 6px;
  color: var(--fg);
}
.issues .issue__desc {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.7;
  margin: 0;
}

/* ===== Email actions ===== */
.email__actions { display: flex; justify-content: flex-end; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.22em;
  padding: 9px 22px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-ghost:hover { background: var(--ink-soft); }
.btn-ghost.copied { color: var(--accent); border-color: var(--accent); }

/* ===== Footer ===== */
.foot {
  position: relative;
  max-width: 1180px;
  margin: 72px auto 0;
  padding-top: 24px;
  border-top: 1px dashed var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
  z-index: 2;
}
.foot strong { color: var(--fg-dim); font-weight: 600; }

/* ===== Skeleton ===== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-soft) 25%, #eeeee8 50%, var(--bg-soft) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  color: transparent !important;
  border-radius: 2px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* error */
.banner-error {
  max-width: 1180px;
  margin: 0 auto 20px;
  padding: 14px 18px;
  background: rgba(255, 62, 31, 0.08);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.06em;
  display: none;
}
.banner-error.show { display: block; }