/* ==========================================================================
   Quiet Brand Foundation v1.0.0
   Canonical source: POWERSTONE-念珠/design-system/quiet-brand-foundation.css
   Generated copies in both sites must not be edited directly.
   ========================================================================== */

:root {
  color-scheme: light;

  /* Core color primitives */
  --qbf-color-paper-0: #fffdf8;
  --qbf-color-paper-100: #f4f0e7;
  --qbf-color-paper-200: #e9e3d8;
  --qbf-color-ink-900: #151716;
  --qbf-color-ink-800: #1c211d;
  --qbf-color-ink-700: #2b302b;
  --qbf-color-sand-300: #d9d1c3;
  --qbf-color-sand-200: #e4decf;
  --qbf-color-white: #ffffff;

  /* Brand primitives */
  --qbf-color-qq-olive-800: #424a3a;
  --qbf-color-qq-olive-600: #667057;
  --qbf-color-qq-olive-300: #aeb5a3;
  --qbf-color-qq-metal-400: #c6b58b;
  --qbf-color-qq-acid-500: #e8ec00;
  --qbf-color-qq-amber-500: #d9892b;
  --qbf-color-aura-clay-600: #9e5f41;
  --qbf-color-aura-clay-400: #b98a6e;
  --qbf-color-aura-sage-700: #6e7355;
  --qbf-color-aura-mineral-400: #8a6bb8;
  --qbf-color-aura-dark-paper: #201e19;
  --qbf-color-aura-dark-tint: #191712;
  --qbf-color-aura-dark-panel: #262320;
  --qbf-color-aura-dark-surface: #2c2925;
  --qbf-color-aura-dark-text: #ece6d8;
  --qbf-color-aura-dark-muted: #ada492;
  --qbf-color-aura-dark-line: #39352c;

  /* Typography */
  --qbf-font-display-jp: "Noto Serif JP", "Noto Serif CJK JP", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --qbf-font-body-jp: "Noto Sans JP", "Noto Sans CJK JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  --qbf-font-label: "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
  --qbf-font-editorial: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --qbf-weight-regular: 400;
  --qbf-weight-medium: 500;
  --qbf-weight-semibold: 600;
  --qbf-weight-bold: 700;
  --qbf-leading-tight: 1;
  --qbf-leading-heading: 1.15;
  --qbf-leading-body: 1.8;
  --qbf-tracking-tight: -0.03em;
  --qbf-tracking-label: 0.18em;
  --qbf-tracking-brand: 0.24em;

  /* Spacing */
  --qbf-space-0: 0;
  --qbf-space-1: 4px;
  --qbf-space-2: 8px;
  --qbf-space-3: 12px;
  --qbf-space-4: 16px;
  --qbf-space-6: 24px;
  --qbf-space-8: 32px;
  --qbf-space-12: 48px;
  --qbf-space-16: 64px;
  --qbf-space-24: 96px;

  /* Shape, depth, motion */
  --qbf-radius-none: 0;
  --qbf-radius-compact: 2px;
  --qbf-radius-control: 10px;
  --qbf-radius-soft: 16px;
  --qbf-radius-pill: 999px;
  --qbf-radius-circle: 50%;
  --qbf-border-hairline: 1px;
  --qbf-border-accent: 3px;
  --qbf-shadow-soft: 0 20px 60px rgba(21, 23, 22, 0.08);
  --qbf-shadow-float: 0 28px 80px rgba(21, 23, 22, 0.16);
  --qbf-shadow-aura: 0 20px 44px -30px rgba(60, 45, 25, 0.35);
  --qbf-duration-fast: 140ms;
  --qbf-duration-standard: 280ms;
  --qbf-duration-slow: 520ms;
  --qbf-ease-editorial: cubic-bezier(0.22, 1, 0.36, 1);
  --qbf-ease-standard: cubic-bezier(0.2, 0, 0, 1);

  /* Layout */
  --qbf-content-wide: 1440px;
  --qbf-content-reading: 72ch;
  --qbf-gutter: clamp(20px, 5vw, 72px);
}

/* Theme contracts -------------------------------------------------------- */

.qbf-theme {
  --qbf-bg: var(--qbf-color-paper-100);
  --qbf-bg-subtle: var(--qbf-color-paper-200);
  --qbf-surface: var(--qbf-color-paper-0);
  --qbf-text: var(--qbf-color-ink-900);
  --qbf-text-secondary: var(--qbf-color-qq-olive-800);
  --qbf-text-muted: var(--qbf-color-qq-olive-600);
  --qbf-text-inverse: var(--qbf-color-paper-0);
  --qbf-border: rgba(66, 74, 58, 0.2);
  --qbf-border-strong: var(--qbf-color-qq-olive-800);
  --qbf-accent: var(--qbf-color-qq-acid-500);
  --qbf-accent-quiet: var(--qbf-color-qq-metal-400);
  --qbf-on-accent: var(--qbf-color-ink-900);
  --qbf-action: var(--qbf-color-ink-900);
  --qbf-action-hover: var(--qbf-color-qq-olive-800);
  --qbf-on-action: var(--qbf-color-paper-0);
  --qbf-focus: var(--qbf-color-qq-acid-500);
  --qbf-card-radius: var(--qbf-radius-none);
  --qbf-control-radius: var(--qbf-radius-none);
  --qbf-card-shadow: var(--qbf-shadow-soft);

  background: var(--qbf-bg);
  color: var(--qbf-text);
  font-family: var(--qbf-font-body-jp);
}

.qbf-theme--quiet-quality {
  --qbf-text-secondary: var(--qbf-color-qq-olive-800);
  --qbf-text-muted: var(--qbf-color-qq-olive-600);
  --qbf-border: rgba(66, 74, 58, 0.2);
  --qbf-border-strong: var(--qbf-color-qq-olive-800);
  --qbf-accent: var(--qbf-color-qq-acid-500);
  --qbf-accent-quiet: var(--qbf-color-qq-metal-400);
  --qbf-action-hover: var(--qbf-color-qq-olive-800);
  --qbf-focus: var(--qbf-color-qq-acid-500);
  --qbf-card-radius: var(--qbf-radius-none);
  --qbf-control-radius: var(--qbf-radius-none);
  --qbf-card-shadow: var(--qbf-shadow-soft);
}

.qbf-theme--aura-stone {
  --qbf-text-secondary: #6c6558;
  --qbf-text-muted: #81796b;
  --qbf-border: var(--qbf-color-sand-300);
  --qbf-border-strong: var(--qbf-color-aura-clay-600);
  --qbf-accent: var(--qbf-color-aura-clay-600);
  --qbf-accent-quiet: var(--qbf-color-aura-sage-700);
  --qbf-on-accent: var(--qbf-color-paper-0);
  --qbf-action-hover: var(--qbf-color-aura-clay-600);
  --qbf-focus: var(--qbf-color-aura-clay-600);
  --qbf-card-radius: var(--qbf-radius-soft);
  --qbf-control-radius: var(--qbf-radius-control);
  --qbf-card-shadow: var(--qbf-shadow-aura);
}

.qbf-theme--aura-stone[data-color-scheme="dark"] {
  color-scheme: dark;
  --qbf-bg: var(--qbf-color-aura-dark-paper);
  --qbf-bg-subtle: var(--qbf-color-aura-dark-tint);
  --qbf-surface: var(--qbf-color-aura-dark-surface);
  --qbf-text: var(--qbf-color-aura-dark-text);
  --qbf-text-secondary: var(--qbf-color-aura-dark-muted);
  --qbf-text-muted: #918978;
  --qbf-text-inverse: var(--qbf-color-aura-dark-paper);
  --qbf-border: var(--qbf-color-aura-dark-line);
  --qbf-border-strong: #9aa07c;
  --qbf-accent: #c6835f;
  --qbf-accent-quiet: #9aa07c;
  --qbf-on-accent: var(--qbf-color-aura-dark-paper);
  --qbf-action: var(--qbf-color-aura-dark-text);
  --qbf-action-hover: #c6835f;
  --qbf-on-action: var(--qbf-color-aura-dark-paper);
  --qbf-focus: #c6835f;
  --qbf-card-shadow: 0 20px 44px -28px rgba(0, 0, 0, 0.6);
}

/* Type ------------------------------------------------------------------- */

.qbf-kicker {
  margin: 0;
  color: var(--qbf-text-muted);
  font-family: var(--qbf-font-label);
  font-size: 0.6875rem;
  font-weight: var(--qbf-weight-bold);
  letter-spacing: var(--qbf-tracking-label);
  line-height: 1.2;
  text-transform: uppercase;
}

.qbf-display,
.qbf-heading,
.qbf-subheading {
  margin: 0;
  color: var(--qbf-text);
  font-family: var(--qbf-font-display-jp);
  font-weight: var(--qbf-weight-semibold);
  text-wrap: balance;
}

.qbf-display {
  max-width: 12ch;
  font-size: clamp(2.75rem, 7vw, 5rem);
  letter-spacing: var(--qbf-tracking-tight);
  line-height: 1.03;
}

.qbf-heading {
  max-width: 20ch;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  line-height: var(--qbf-leading-heading);
}

.qbf-subheading {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  line-height: 1.35;
}

.qbf-body {
  max-width: var(--qbf-content-reading);
  margin: 0;
  color: var(--qbf-text-secondary);
  font-size: 1rem;
  line-height: var(--qbf-leading-body);
}

.qbf-label {
  color: var(--qbf-text-muted);
  font-family: var(--qbf-font-label);
  font-size: 0.6875rem;
  font-weight: var(--qbf-weight-semibold);
  letter-spacing: var(--qbf-tracking-label);
  text-transform: uppercase;
}

.qbf-brand-word {
  font-family: var(--qbf-font-editorial);
  font-size: clamp(1.4rem, 3vw, 2.25rem);
  font-weight: var(--qbf-weight-semibold);
  letter-spacing: 0.02em;
  line-height: 1;
}

.qbf-theme--aura-stone .qbf-brand-word {
  font-family: var(--qbf-font-label);
  font-size: clamp(1.2rem, 2.4vw, 1.8rem);
  font-weight: var(--qbf-weight-medium);
  letter-spacing: var(--qbf-tracking-brand);
}

/* Actions ---------------------------------------------------------------- */

.qbf-button {
  position: relative;
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: var(--qbf-space-2);
  padding: 0 var(--qbf-space-6);
  border: var(--qbf-border-hairline) solid transparent;
  border-radius: var(--qbf-control-radius);
  font-family: var(--qbf-font-body-jp);
  font-size: 0.875rem;
  font-weight: var(--qbf-weight-bold);
  letter-spacing: 0.03em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--qbf-duration-standard) var(--qbf-ease-editorial),
    border-color var(--qbf-duration-fast) var(--qbf-ease-standard),
    background var(--qbf-duration-fast) var(--qbf-ease-standard),
    color var(--qbf-duration-fast) var(--qbf-ease-standard);
}

.qbf-button:hover {
  transform: translateY(-2px);
}

.qbf-button:active {
  transform: translateY(0);
}

.qbf-button:focus-visible,
.qbf-input:focus-visible,
.qbf-chip:focus-visible {
  outline: 3px solid var(--qbf-focus);
  outline-offset: 3px;
}

.qbf-button--primary {
  background: var(--qbf-action);
  color: var(--qbf-on-action);
}

.qbf-button--primary:hover {
  background: var(--qbf-action-hover);
}

.qbf-button--secondary {
  border-color: var(--qbf-border-strong);
  background: transparent;
  color: var(--qbf-text);
}

.qbf-button--secondary:hover {
  border-color: var(--qbf-accent);
  color: var(--qbf-accent);
}

.qbf-theme--quiet-quality .qbf-button--secondary:hover {
  color: var(--qbf-text);
  box-shadow: inset 0 -3px 0 var(--qbf-accent);
}

/* Surfaces ---------------------------------------------------------------- */

.qbf-card {
  position: relative;
  display: grid;
  gap: var(--qbf-space-4);
  padding: clamp(24px, 4vw, 40px);
  border: var(--qbf-border-hairline) solid var(--qbf-border);
  border-radius: var(--qbf-card-radius);
  background: var(--qbf-surface);
  box-shadow: var(--qbf-card-shadow);
}

.qbf-theme--quiet-quality .qbf-card {
  box-shadow: none;
}

.qbf-card--accent::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--qbf-border-accent);
  background: var(--qbf-accent);
  content: "";
}

.qbf-stat {
  display: grid;
  gap: var(--qbf-space-1);
  padding-block: var(--qbf-space-4);
  border-block: var(--qbf-border-hairline) solid var(--qbf-border);
}

.qbf-stat strong {
  color: var(--qbf-text);
  font-family: var(--qbf-font-editorial);
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: var(--qbf-weight-semibold);
  line-height: 1;
}

.qbf-stat span {
  color: var(--qbf-text-muted);
  font-size: 0.75rem;
}

/* Forms and status ------------------------------------------------------- */

.qbf-field {
  display: grid;
  gap: var(--qbf-space-2);
}

.qbf-field > label {
  color: var(--qbf-text-muted);
  font-size: 0.75rem;
  font-weight: var(--qbf-weight-medium);
}

.qbf-input {
  width: 100%;
  min-height: 48px;
  padding: 0 var(--qbf-space-4);
  border: var(--qbf-border-hairline) solid var(--qbf-border);
  border-radius: var(--qbf-control-radius);
  background: var(--qbf-surface);
  color: var(--qbf-text);
  font: inherit;
  transition:
    border-color var(--qbf-duration-fast) var(--qbf-ease-standard),
    box-shadow var(--qbf-duration-fast) var(--qbf-ease-standard);
}

.qbf-input::placeholder {
  color: var(--qbf-text-muted);
  opacity: 0.8;
}

.qbf-input:hover {
  border-color: var(--qbf-border-strong);
}

.qbf-chip {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 0 var(--qbf-space-3);
  border: var(--qbf-border-hairline) solid var(--qbf-border);
  border-radius: var(--qbf-radius-pill);
  background: transparent;
  color: var(--qbf-text-secondary);
  font: inherit;
  font-size: 0.75rem;
}

.qbf-chip[aria-pressed="true"],
.qbf-chip--active {
  border-color: var(--qbf-accent);
  color: var(--qbf-accent);
}

.qbf-theme--quiet-quality .qbf-chip[aria-pressed="true"],
.qbf-theme--quiet-quality .qbf-chip--active {
  background: var(--qbf-accent);
  color: var(--qbf-on-accent);
}

.qbf-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--qbf-space-2);
  color: var(--qbf-accent-quiet);
  font-size: 0.75rem;
  font-weight: var(--qbf-weight-semibold);
}

.qbf-badge::before {
  width: 8px;
  height: 8px;
  border-radius: var(--qbf-radius-circle);
  background: currentColor;
  content: "";
}

/* Layout utilities ------------------------------------------------------- */

.qbf-stack {
  display: flex;
  flex-direction: column;
  gap: var(--qbf-stack-gap, var(--qbf-space-4));
}

.qbf-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--qbf-cluster-gap, var(--qbf-space-3));
}

.qbf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: var(--qbf-grid-gap, var(--qbf-space-4));
}

.qbf-rule {
  width: 100%;
  height: var(--qbf-border-hairline);
  border: 0;
  background: var(--qbf-border);
}

.qbf-inverse {
  --qbf-bg: var(--qbf-color-ink-900);
  --qbf-surface: var(--qbf-color-ink-800);
  --qbf-text: var(--qbf-color-paper-0);
  --qbf-text-secondary: var(--qbf-color-paper-200);
  --qbf-text-muted: var(--qbf-color-qq-olive-300);
  --qbf-border: rgba(255, 253, 248, 0.18);
  --qbf-border-strong: var(--qbf-color-paper-0);
  --qbf-action: var(--qbf-accent);
  --qbf-action-hover: var(--qbf-color-paper-0);
  --qbf-on-action: var(--qbf-color-ink-900);
  background: var(--qbf-bg);
  color: var(--qbf-text);
}

@media (prefers-reduced-motion: reduce) {
  .qbf-theme *,
  .qbf-theme *::before,
  .qbf-theme *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}