:root {
  --bg: #0b0c10;
  --bg-elevated: #14151f;
  --accent: #f5c26b;
  --accent-soft: rgba(245, 194, 107, 0.12);
  --text-main: #f7f7f7;
  --text-sub: #a7a9b7;
  --border-soft: #2a2b3a;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: "Playfair Display", "Times New Roman", serif;
  --transition-fast: 0.18s ease-out;

  /* 出力スタイル用（ユーザーが変更） */
  --output-font-size: 1.05rem;
  --output-text-color: #f7f7f7;
  --output-bg-color: rgba(5, 6, 10, 0.9);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #1b1c2a 0, #05060a 55%, #000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 18px 20px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(18px);
  position: sticky;
  top: 0;
  z-index: 20;
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.92), rgba(5, 6, 10, 0.75), transparent);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #fff 0, #f5c26b 18%, #8a5b1f 45%, #1b1c2a 100%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), 0 12px 30px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 35% 18%;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  transform: rotate(-18deg);
}

.brand-text-main {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
}

.brand-text-sub {
  font-size: 0.72rem;
  color: var(--text-sub);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-sub);
}

.badge-free {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(245, 194, 107, 0.6);
  background: radial-gradient(circle at top left, rgba(245, 194, 107, 0.25), rgba(245, 194, 107, 0.05));
  color: var(--accent);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

main {
  flex: 1;
  padding: 18px 16px 40px;
}

.main-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 22px;
}

@media (max-width: 1040px) {
  .main-inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
    grid-template-rows: auto auto;
  }
  .column-settings {
    grid-column: 1 / -1;
  }
}

@media (max-width: 840px) {
  .main-inner {
    grid-template-columns: minmax(0, 1fr);
  }
  header {
    padding-top: 14px;
  }
  .header-inner {
    flex-direction: row;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  main {
    padding-inline: 12px;
  }
  header {
    padding-inline: 12px;
  }
}

.hero {
  margin-bottom: 18px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  line-height: 1.25;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.hero-title span {
  background: linear-gradient(120deg, #f5c26b, #f7e3b4);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.7;
  max-width: 34rem;
}

.hero-sub strong {
  color: #fbe0a0;
  font-weight: 500;
}

.card {
  background: radial-gradient(circle at top left, rgba(245, 194, 107, 0.12), rgba(10, 11, 18, 0.98));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-soft);
  padding: 18px 18px 16px;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top, rgba(245, 194, 107, 0.08), transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.card-title {
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.card-title span {
  color: var(--accent);
}

.card-hint {
  font-size: 0.75rem;
  color: var(--text-sub);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-sub);
}

.label-main {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: #d6d7e5;
}

.char-count {
  font-variant-numeric: tabular-nums;
}

textarea {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: rgba(5, 6, 10, 0.9);
  color: var(--text-main);
  padding: 10px 11px;
  font-size: 0.9rem;
  line-height: 1.6;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

textarea:focus {
  border-color: rgba(245, 194, 107, 0.7);
  box-shadow: 0 0 0 1px rgba(245, 194, 107, 0.4);
  background: rgba(5, 6, 10, 0.98);
}

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
  align-items: center;
}

.btn {
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(12, 13, 20, 0.95);
  color: var(--text-main);
  padding: 7px 14px;
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, #f5c26b, #f7e3b4);
  color: #2b1b08;
  border-color: rgba(245, 194, 107, 0.9);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  font-weight: 600;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.75);
}

.btn-ghost {
  background: rgba(10, 11, 18, 0.9);
}

.btn:hover {
  border-color: rgba(245, 194, 107, 0.6);
  background: rgba(18, 19, 28, 0.98);
}

.btn-icon {
  font-size: 1rem;
  line-height: 1;
}

.note {
  font-size: 0.75rem;
  color: var(--text-sub);
  line-height: 1.6;
}

.note strong {
  color: #fbe0a0;
  font-weight: 500;
}

.note-list {
  margin-top: 4px;
  padding-left: 1.1em;
}

.note-list li {
  margin-bottom: 2px;
}

/* 設定カラム */
.settings-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 8px;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-sub);
}

.settings-row input[type="range"] {
  width: 100%;
}

.settings-value {
  font-size: 0.78rem;
  color: var(--text-sub);
}

.color-inputs {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.color-inputs label {
  font-size: 0.75rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 4px;
}

.color-inputs input[type="color"] {
  width: 26px;
  height: 26px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: transparent;
  cursor: pointer;
}

.preset-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(10, 11, 18, 0.9);
  font-size: 0.72rem;
  color: var(--text-sub);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.chip:hover {
  border-color: rgba(245, 194, 107, 0.7);
  color: var(--accent);
  background: rgba(18, 19, 28, 0.98);
  transform: translateY(-0.5px);
}

/* 出力カラム */
.output-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 520px;
  overflow: hidden;
}

.output-scroll {
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: rgba(245, 194, 107, 0.4) transparent;
}

.output-scroll::-webkit-scrollbar {
  width: 6px;
}

.output-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.output-scroll::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(245, 194, 107, 0.7), rgba(245, 194, 107, 0.2));
  border-radius: 999px;
}

.style-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--output-bg-color);
  padding: 10px 11px;
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  overflow: hidden;
}

.style-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(245, 194, 107, 0.12), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.style-item:hover::before {
  opacity: 1;
}

.style-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-sub);
}

.style-name {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: #d6d7e5;
}

.style-tag {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(245, 194, 107, 0.12);
  color: var(--accent);
  font-size: 0.7rem;
}

.style-body {
  font-size: var(--output-font-size);
  line-height: 1.7;
  word-break: break-word;
  cursor: text;
  color: var(--output-text-color);
}

.style-actions {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  margin-top: 2px;
  align-items: center;
}

.btn-mini {
  padding: 4px 9px;
  font-size: 0.72rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(10, 11, 18, 0.95);
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn-mini:hover {
  border-color: rgba(245, 194, 107, 0.7);
  color: var(--accent);
  background: rgba(18, 19, 28, 0.98);
  transform: translateY(-0.5px);
}

.style-index {
  font-size: 0.7rem;
  color: var(--text-sub);
}

.status {
  font-size: 0.75rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #3bbf7a;
  box-shadow: 0 0 0 4px rgba(59, 191, 122, 0.2);
}

.status-dot.idle {
  background: #777b8f;
  box-shadow: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(120%);
  background: rgba(10, 11, 18, 0.98);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(245, 194, 107, 0.6);
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.7);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.22s ease-out, opacity 0.22s ease-out;
  z-index: 50;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

footer {
  padding: 18px 16px 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.75rem;
  color: var(--text-sub);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-link {
  color: var(--accent);
}

.footer-meta {
  font-size: 0.7rem;
  color: #6f7284;
}