/* ===========================================================
   Lens Processing — Elegant 3D Color Atelier
   Elegant ページのトンマナと連動した編集ダーク + ブラス
   依存: top-redesign.css の CSS トークン、elegant.css の .elegant-statement
   =========================================================== */

/* ---------- Header (dark editorial intro) ---------- */
.lens-processing-header {
  position: relative;
  background:
    radial-gradient(circle at 50% 25%, rgba(214, 181, 118, 0.07) 0%, transparent 60%),
    linear-gradient(180deg, #0c0e10 0%, #14171a 100%);
  color: #fff;
  text-align: center;
  padding: clamp(64px, 8vw, 96px) clamp(20px, 4vw, 48px);
  overflow: hidden;
}

.lens-processing-header::before,
.lens-processing-header::after {
  content: "";
  position: absolute;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(214, 181, 118, 0.3), transparent);
  top: 24px;
  bottom: 24px;
}

.lens-processing-header::before { left: 24px; }
.lens-processing-header::after  { right: 24px; }

.lens-processing-header-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--sans-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  font-weight: 600;
  color: #d6b576;
  text-transform: uppercase;
  margin: 0 0 28px;
}

.lens-processing-header-brand {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: none;
  color: #f0d690;
}

.lens-processing-header-divider {
  color: rgba(214, 181, 118, 0.5);
  font-weight: 300;
}

.lens-processing-header-title {
  font-family: var(--serif);
  font-size: clamp(32px, 5.5vw, 56px);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.18;
  margin: 0 0 24px;
}

.lens-processing-header-title-line { display: block; }

.lens-processing-header-lead {
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 auto;
}

/* ---------- Stage (3D viewer container) ---------- */
.lens-processing { padding-top: 72px; }

.lens-processing-stage {
  background: linear-gradient(160deg, #0c0e10 0%, #14171a 100%);
  border: 1px solid rgba(214, 181, 118, 0.22);
  border-radius: 4px;
  padding: clamp(20px, 3vw, 32px);
  position: relative;
  overflow: hidden;
}

.lens-processing-stage::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(214, 181, 118, 0.08);
  pointer-events: none;
  border-radius: 2px;
}

.lens-processing-stage-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 22px;
  flex-wrap: wrap;
  position: relative;
}

.lens-processing-stage-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.lens-processing-stage-eyebrow {
  font-family: var(--sans-en);
  font-size: 10px;
  letter-spacing: 0.34em;
  font-weight: 600;
  color: #d6b576;
  text-transform: uppercase;
}

.lens-processing-stage-title {
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.95);
  margin: 0;
}

.lens-processing-stage-help {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans-en);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.55);
  margin: 0;
}

.lens-processing-stage-help-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #c2a168;
  box-shadow: 0 0 0 0 rgba(194, 161, 104, 0.6);
  animation: lens-processing-pulse 2.4s ease-out infinite;
}

@keyframes lens-processing-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(194, 161, 104, 0.55); }
  70%  { box-shadow: 0 0 0 8px rgba(194, 161, 104, 0); }
  100% { box-shadow: 0 0 0 0 rgba(194, 161, 104, 0); }
}

/* The 3D canvas surface — keep id selector for JS, style by class */
.lens-processing__viewer,
.lens-processing-viewer {
  width: 100%;
  height: 520px;
  border-radius: 2px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 30%, #1a1d22 0%, #0c0e10 70%, #050608 100%);
  position: relative;
}

/* ---------- Controls ---------- */
.lens-processing-controls {
  margin-top: 56px;
}

.lens-processing-controls-header {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.lens-processing-controls-step {
  font-family: var(--sans-en);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #c2a168;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.lens-processing-controls-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lens-processing-controls-eyebrow {
  font-family: var(--sans-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  font-weight: 600;
  color: #8b6e3f;
  text-transform: uppercase;
}

.lens-processing-controls-title {
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin: 0;
}

/* ---------- Chip group + chip ---------- */
.lens-processing-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.lens-processing-chip-label {
  width: 100%;
  margin: 16px 0 6px;
  font-family: var(--sans-en);
  font-size: 11px;
  letter-spacing: 0.28em;
  font-weight: 600;
  color: #8b6e3f;
  text-transform: uppercase;
}

.lens-processing-chip-label:first-child {
  margin-top: 0;
}

/* Chip — keep .lens-processing__color-btn for JS, restyle */
.lens-processing__color-btn,
.lens-processing-chip {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
  padding: 10px 18px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
}

.lens-processing__color-btn:hover,
.lens-processing-chip:hover {
  border-color: rgba(194, 161, 104, 0.7);
  color: #5a4423;
  transform: translateY(-1px);
}

.lens-processing__color-btn.is-active,
.lens-processing-chip.is-active {
  border-color: #c2a168;
  background:
    linear-gradient(160deg, #1a1d22 0%, #0c0e10 100%);
  color: #f0d690;
  box-shadow:
    inset 0 0 0 1px rgba(214, 181, 118, 0.5),
    0 6px 18px -8px rgba(0, 0, 0, 0.45);
}

.lens-processing__color-btn:focus-visible,
.lens-processing-chip:focus-visible {
  outline: 2px solid #c2a168;
  outline-offset: 2px;
}

/* ---------- Palette supplement (3Dに映らないカラー) ---------- */
.lens-processing-palette {
  margin-top: 56px;
  padding-top: 32px;
}

.lens-processing-palette .elegant-feature-palette-text:last-of-type {
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .lens-processing-palette {
    margin-top: 40px;
    padding-top: 26px;
  }
}

/* ---------- Note ---------- */
.lens-processing-note {
  margin-top: 36px;
  margin-bottom: 0;
  font-size: 13px;
  line-height: 1.95;
  color: #6b7280;
  text-align: center;
  font-style: italic;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .lens-processing-header::before,
  .lens-processing-header::after { top: 16px; bottom: 16px; }
  .lens-processing-header::before { left: 12px; }
  .lens-processing-header::after  { right: 12px; }

  .lens-processing { padding-top: 48px; }

  .lens-processing-stage {
    padding: 18px;
  }

  .lens-processing-stage-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 16px;
  }

  .lens-processing__viewer,
  .lens-processing-viewer {
    height: 380px;
  }

  .lens-processing-controls {
    margin-top: 40px;
  }

  .lens-processing-controls-header {
    gap: 14px;
    padding-bottom: 14px;
    margin-bottom: 18px;
  }

  .lens-processing-controls-step {
    font-size: 22px;
  }

  .lens-processing__color-btn,
  .lens-processing-chip {
    padding: 9px 14px;
    font-size: 12.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lens-processing-stage-help-dot { animation: none; }
}