/* arXte — Carteggio component styles (prefix `cg-`)
   Uses ONLY tokens from tokens.css and .t-* utilities. */

/* Desk Blotter */
.cg-desk {
  position: relative;
  background-color: var(--leather);
  border-radius: 6px;
  box-shadow: inset 0 2px 14px rgba(0, 0, 0, 0.6), 0 20px 48px -12px rgba(10, 15, 12, 0.55);
  padding: clamp(20px, 3.2vw, 42px);
  color: var(--ink);
  overflow: hidden;
  box-sizing: border-box;
  width: 100%;
}

/* Double gold-tooled border */
.cg-desk::before {
  content: '';
  position: absolute;
  inset: 14px;
  border: 1px solid var(--leather-tool);
  border-radius: 4px;
  pointer-events: none;
  z-index: 1;
}

.cg-desk::after {
  content: '';
  position: absolute;
  inset: 18px;
  border: 1px solid var(--leather-tool);
  border-radius: 2px;
  pointer-events: none;
  z-index: 1;
}

/* Focus styles */
.cg-desk button:focus-visible,
.cg-dial:focus-visible,
.cg-btn-reset:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 3px;
}

/* Hidden SVG filters */
.cg-svg-filters {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Grid Layout */
.cg-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(260px, 310px) minmax(360px, 1fr) minmax(270px, 320px);
  gap: clamp(16px, 2.5vw, 32px);
  align-items: start;
}

/* Paper objects with physical shadows and subtle rotation */
.cg-paper-obj {
  position: relative;
  box-shadow: var(--shadow-paper);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
  will-change: transform;
}

.cg-paper-obj:hover {
  transform: rotate(0deg) !important;
  box-shadow: var(--shadow-lift);
}

/* =====================================================================
   Left Zone: Artwork Dossier
   ===================================================================== */
.cg-dossier {
  background-color: var(--paper-2);
  border: 1px solid var(--hairline);
  padding: clamp(16px, 2vw, 22px);
  border-radius: 2px;
}

.cg-dossier-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 8px;
}

.cg-dossier-num {
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  font-family: var(--font-ui);
}

/* Trompe-l'œil paper clip */
.cg-photo-wrap {
  position: relative;
  margin: 12px 0 16px;
}

.cg-paperclip {
  position: absolute;
  top: -14px;
  right: 28px;
  width: 14px;
  height: 38px;
  border: 2px solid #b3aba0;
  border-bottom: none;
  border-radius: 7px 7px 0 0;
  z-index: 10;
  pointer-events: none;
  filter: drop-shadow(1px 2px 2px rgba(0, 0, 0, 0.35));
}

.cg-paperclip::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 2px;
  right: 2px;
  bottom: -6px;
  border: 2px solid #8e867b;
  border-top: none;
  border-radius: 0 0 5px 5px;
}

.cg-paperclip::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 4px;
  right: 4px;
  bottom: 6px;
  border: 2px solid #c9c2b8;
  border-bottom: none;
  border-radius: 3px 3px 0 0;
}

/* Artwork photo with deckled white border */
.cg-photo-card {
  background: #ffffff;
  padding: 10px 10px 14px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  filter: url(#cg-deckle-filter);
}

.cg-artwork-img {
  width: 100%;
  height: auto;
  max-height: 290px;
  object-fit: cover;
  display: block;
  background-color: var(--paper-3);
}

/* Museum label card */
.cg-museum-label {
  margin-top: 14px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid var(--hairline);
  font-family: var(--font-text);
}

.cg-label-artist {
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-ui);
}

.cg-label-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.2;
}

.cg-label-meta {
  font-size: var(--fs-small);
  color: var(--ink-soft);
  margin-bottom: 12px;
  line-height: 1.4;
}

.cg-label-price-row {
  border-top: 1px dashed var(--hairline);
  padding-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.cg-label-price-tag {
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  font-family: var(--font-ui);
}

.cg-label-price-val {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--ink);
  font-optical-sizing: auto;
}

/* Handwritten checklist */
.cg-checklist {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.35);
  border-left: 2px solid var(--hairline-strong);
}

.cg-checklist-item {
  font-family: var(--font-hand);
  font-size: 1.35rem;
  color: var(--ink);
  line-height: 1.6;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.cg-check-glyph {
  font-family: var(--font-hand);
  font-size: 1.4rem;
  color: var(--ink);
  margin-left: 8px;
}

/* =====================================================================
   Centre Zone: The Correspondence
   ===================================================================== */
.cg-correspondence {
  position: relative;
  width: 100%;
  min-height: 520px;
}

.cg-stack {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Individual letter */
.cg-letter {
  width: 100%;
  box-sizing: border-box;
  background-color: var(--paper-2);
  padding: clamp(22px, 3.5vw, 38px);
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow-paper);
  position: relative;
  margin-bottom: 20px;
  border-radius: 2px;
}

.cg-letter.cg-letter-peek {
  margin-bottom: -220px;
  z-index: 1;
  transform-origin: top center;
}

.cg-letter.cg-letter-active {
  z-index: 3;
}

.cg-letterhead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 12px;
  margin-bottom: 22px;
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  font-family: var(--font-ui);
}

.cg-salutation {
  font-family: var(--font-text);
  font-size: 1.15rem;
  margin-bottom: 16px;
  color: var(--ink);
}

.cg-letter-body {
  font-family: var(--font-text);
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 26px;
}

.cg-letter-body em {
  font-style: italic;
}

.cg-letter-body strong {
  font-family: var(--font-display);
  font-weight: 600;
}

.cg-letter-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
}

.cg-signature-box {
  position: relative;
  text-align: right;
  min-width: 130px;
}

.cg-signature {
  font-family: var(--font-sign);
  font-size: 2.8rem;
  color: var(--ink);
  line-height: 1;
  display: inline-block;
  white-space: nowrap;
  transform: rotate(-2deg);
  will-change: clip-path;
}

.cg-avatar-ring {
  width: 44px;
  height: 56px;
  border-radius: 50%;
  border: 1.5px solid var(--gold);
  overflow: hidden;
  position: relative;
  background: var(--paper-3);
  flex-shrink: 0;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: all 0.35s ease;
}

.cg-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter 0.35s ease, opacity 0.35s ease;
}

/* Envelope for arriving letters */
.cg-envelope {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 440px;
  height: 270px;
  background: var(--paper-3);
  box-shadow: var(--shadow-lift);
  border: 1px solid var(--hairline-strong);
  z-index: 30;
  border-radius: 3px;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.cg-envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 135px;
  background: var(--paper-2);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top center;
  z-index: 5;
  transition: transform 0.6s var(--ease-out);
}

.cg-envelope-seal {
  position: absolute;
  top: 92px;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
}

/* Folding letter panels for outgoing offer */
.cg-fold-wrapper {
  position: relative;
  width: 100%;
  transform-style: preserve-3d;
  perspective: 1000px;
}

/* Reply actions bar under counter-offer */
.cg-counter-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--hairline);
}

.cg-btn-accept {
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--wax);
  color: var(--wax);
  font-variant-caps: all-small-caps;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.2s var(--ease-out);
  font-family: var(--font-ui);
}

.cg-btn-accept:hover {
  background: rgba(142, 27, 27, 0.08);
  box-shadow: 0 2px 8px rgba(142, 27, 27, 0.15);
}

.cg-btn-counter {
  padding: 10px 18px;
  background: transparent;
  border: 1px solid var(--hairline-strong);
  color: var(--ink);
  font-variant-caps: all-small-caps;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.2s var(--ease-out);
  font-family: var(--font-ui);
}

.cg-btn-counter:hover {
  border-color: var(--ink);
  background: rgba(0, 0, 0, 0.04);
}

/* =====================================================================
   Right Zone: The Offer Instrument
   ===================================================================== */
.cg-instrument {
  background-color: var(--paper-2);
  border: 1px solid var(--hairline);
  padding: clamp(18px, 2vw, 24px);
  border-radius: 2px;
}

.cg-inst-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 8px;
}

/* Venetian Mask Anonymous mode button */
.cg-mask-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: transparent;
  border: 1px solid var(--hairline-strong);
  padding: 5px 10px;
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.25s var(--ease-out);
  font-family: var(--font-ui);
}

.cg-mask-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.cg-mask-btn[aria-pressed="true"] {
  background: var(--leather);
  color: var(--paper);
  border-color: var(--gold);
}

.cg-mask-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  display: inline-block;
  vertical-align: middle;
}

/* Odometer */
.cg-odometer {
  text-align: center;
  margin: 10px 0 16px;
}

.cg-odo-label {
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-ui);
}

.cg-odo-container {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2.15rem;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
  font-optical-sizing: auto;
}

.cg-odo-symbol {
  margin-right: 0.18em;
}

.cg-odo-col {
  overflow: hidden;
  height: 1.15em;
  display: inline-block;
  vertical-align: middle;
  position: relative;
  width: 0.62em;
}

.cg-odo-reel {
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.cg-odo-digit {
  height: 1.15em;
  line-height: 1.15em;
  text-align: center;
}

.cg-odo-sep {
  display: inline-block;
  width: 0.26em;
  text-align: center;
}

/* Dial container & pointer */
.cg-dial-container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  margin: 18px 0;
  touch-action: none;
}

.cg-dial-pointer {
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 10px solid var(--gold);
  z-index: 10;
  pointer-events: none;
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.5));
}

/* Safe Dial element */
.cg-dial {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  position: relative;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  box-shadow: 0 10px 28px -6px rgba(0, 0, 0, 0.5), inset 0 2px 4px rgba(255, 255, 255, 0.2);
  background: repeating-conic-gradient(#2b2214 0deg 1.8deg, #a8834a 1.8deg 3.6deg, #d9bf86 3.6deg 5.4deg, #1f170c 5.4deg 7.2deg);
  padding: 8px;
  box-sizing: border-box;
}

.cg-dial.cg-dragging {
  cursor: grabbing;
}

.cg-dial-face {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  position: relative;
  will-change: transform;
}

.cg-dial-svg {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
}

/* Agreement probability gauge */
.cg-gauge {
  margin: 14px 0 22px;
}

.cg-gauge-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  font-family: var(--font-ui);
}

.cg-gauge-pct {
  font-family: var(--font-text);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--ink);
  letter-spacing: normal;
}

.cg-gauge-track {
  height: 2px;
  background: var(--hairline);
  width: 100%;
  margin-top: 6px;
  position: relative;
  border-radius: 1px;
  overflow: hidden;
}

.cg-gauge-fill {
  height: 100%;
  background: var(--ink);
  transition: width 0.3s var(--ease-out);
}

/* Stamp & Send button */
.cg-btn-stamp {
  display: block;
  width: 100%;
  padding: 13px 18px;
  background: transparent;
  border: 1px solid var(--wax);
  color: var(--wax);
  font-variant-caps: all-small-caps;
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  text-align: center;
  border-radius: 2px;
  box-sizing: border-box;
  font-family: var(--font-ui);
}

.cg-btn-stamp:hover:not([aria-disabled="true"]) {
  background: rgba(142, 27, 27, 0.08);
  box-shadow: 0 2px 10px rgba(142, 27, 27, 0.18);
}

/* aria-disabled (not :disabled) keeps the button focusable while a letter is travelling */
.cg-btn-stamp[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* =====================================================================
   Atto di Cessione (Deed)
   ===================================================================== */
.cg-deed {
  width: 100%;
  box-sizing: border-box;
  background: var(--paper);
  border: 2px solid var(--gold);
  padding: clamp(24px, 4vw, 42px);
  box-shadow: var(--shadow-lift);
  position: relative;
  margin-top: 10px;
  z-index: 25;
  border-radius: 2px;
}

.cg-deed-inner {
  outline: 1px solid var(--hairline);
  outline-offset: -8px;
  padding: clamp(16px, 2.5vw, 28px);
}

.cg-deed-title {
  font-size: 1.45rem;
  text-align: center;
  letter-spacing: 0.1em;
  font-variant-caps: all-small-caps;
  margin: 0 0 6px 0;
  color: var(--ink);
  line-height: 1.2;
  font-family: var(--font-ui);
}

/* Receives focus programmatically when the deed replaces the letters */
.cg-deed-title:focus {
  outline: none;
}

.cg-deed-reg {
  text-align: center;
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin-bottom: 20px;
  font-family: var(--font-ui);
}

.cg-deed-artwork {
  text-align: center;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--ink);
  margin-bottom: 24px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 14px;
}

.cg-deed-clauses {
  list-style: none;
  padding: 0;
  margin: 0 0 28px 0;
}

.cg-deed-clause {
  font-family: var(--font-text);
  font-size: 1.12rem;
  line-height: 1.6;
  margin-bottom: 14px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: var(--ink);
}

.cg-deed-check {
  font-family: var(--font-hand);
  font-size: 1.45rem;
  color: var(--wax);
  opacity: 0;
  transform: scale(0.4);
  transition: all 0.4s var(--ease-out);
  width: 1.2em;
  display: inline-block;
  flex-shrink: 0;
}

.cg-deed-check.cg-checked {
  opacity: 1;
  transform: scale(1);
}

.cg-deed-sigs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
}

.cg-deed-sig-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.cg-deed-sig-label {
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin-bottom: 8px;
  font-family: var(--font-ui);
}

.cg-deed-seals {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin-top: 24px;
  min-height: 120px;
}

.cg-deed-closing {
  text-align: center;
  font-family: var(--font-text);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin-top: 28px;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.cg-deed-closing.cg-visible {
  opacity: 1;
}

.cg-deed-reset-box {
  text-align: center;
  margin-top: 22px;
}

.cg-btn-reset {
  font-size: var(--fs-label);
  font-variant-caps: all-small-caps;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  text-decoration: underline;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px 12px;
  transition: color 0.2s ease;
  font-family: var(--font-ui);
}

.cg-btn-reset:hover {
  color: var(--ink);
}

/* =====================================================================
   Anonymous Mode: Cameo silhouette styling
   ===================================================================== */
.cg-masked .cg-avatar-ring {
  border: 2px solid var(--paper);
  box-shadow: 0 0 0 1px var(--gold);
  background: var(--paper-2);
}

.cg-masked .cg-avatar-img {
  filter: brightness(0);
  opacity: 0.82;
}

/* Ink bleed filter effect */
.cg-bleeding {
  filter: url(#cg-ink-bleed);
}

/* =====================================================================
   Responsive Design & Breakpoints
   ===================================================================== */
@media (max-width: 999px) {
  .cg-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* Letters first below 1000px */
  .cg-correspondence {
    order: 1;
  }

  .cg-instrument {
    order: 2;
  }

  .cg-dossier {
    order: 3;
  }

  /* Compact horizontal dossier on tablet/mobile */
  .cg-dossier-inner {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 18px;
    align-items: start;
  }

  .cg-photo-wrap {
    margin: 0;
  }

  .cg-artwork-img {
    max-height: 200px;
  }

  .cg-museum-label {
    margin-top: 0;
  }
}

@media (max-width: 640px) {
  .cg-desk {
    padding: 16px;
  }

  .cg-desk::before {
    inset: 8px;
  }

  .cg-desk::after {
    inset: 12px;
  }

  .cg-dossier-inner {
    grid-template-columns: 1fr;
  }

  .cg-dial {
    width: 200px;
    height: 200px;
  }

  .cg-odo-container {
    font-size: 1.8rem;
  }

  .cg-deed-sigs {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

/* Reduced motion adjustments */
@media (prefers-reduced-motion: reduce) {
  .cg-paper-obj,
  .cg-odo-reel,
  .cg-gauge-fill,
  .cg-envelope-flap,
  .cg-btn-stamp,
  .cg-btn-accept,
  .cg-btn-counter,
  .cg-btn-reset,
  .cg-mask-btn,
  .cg-avatar-ring,
  .cg-avatar-img,
  .cg-deed-check,
  .cg-deed-closing {
    transition: none !important;
  }
}