:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Helvetica Neue", sans-serif;
  --font-serif: "Newsreader", Georgia, serif;

  /* Palette Vetro Opalino Chiaro */
  --opal-bar-bg: rgba(235, 234, 230, 0.88);
  --opal-island-bg: rgba(244, 243, 239, 0.88);
  --opal-elevated-bg: rgba(248, 247, 244, 0.95);
  --opal-border: rgba(255, 255, 255, 0.86);
  --ink: #1d1d1f;
  --graphite-active: #1d1d1f;
  --ink-secondary: #6e6e73;
  --hairline: #dedbd3;

  /* Curva Fisica a Molla iOS 27 (Spring Solver: stiffness 390, damping 25) */
  --ios-spring: linear(
    0, 0.014, 0.054 2.1%, 0.212 4.7%, 0.828 14.8%, 0.992 19.3%,
    1.046 22.8%, 1.064 26.2%, 1.059 30.1%, 1.031 37.9%,
    1.008 45.8%, 0.999 55.6%, 1
  );
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: #141416;
  color: var(--ink);
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums lining-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  touch-action: none;
}

.hidden {
  display: none !important;
}

/* VIEWPORT & CANVAS */
.ss-viewport {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

#webgl-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.ss-labels-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
}

/* LOADER */
.ss-loader {
  position: fixed;
  inset: 0;
  background: #f4f3ef;
  color: var(--ink);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  transition: opacity 0.4s ease;
}

.ss-spinner {
  width: 30px;
  height: 30px;
  border: 2.2px solid rgba(29, 29, 31, 0.12);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: ss-spin 0.75s linear infinite;
}

@keyframes ss-spin {
  to { transform: rotate(360deg); }
}

#ss-loader-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-secondary);
}

/* =========================================================
   PILLOLA ESPLICATIVA HOVER (SOLO DESKTOP MOUSE, SPENTA SU TOUCH/IPAD)
   ========================================================= */
.ss-hover-pill {
  position: fixed;
  z-index: 160;
  background: var(--ink);
  color: #ffffff;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: -0.01em;
  padding: 6.5px 14px;
  border-radius: 980px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  pointer-events: none;
  white-space: nowrap;
  opacity: 0;
  transform: translate3d(-50%, 4px, 0) scale(0.92);
  transition: opacity 0.18s ease, transform 0.26s var(--ios-spring);
}

.ss-hover-pill.visible {
  opacity: 1;
  transform: translate3d(-50%, 0, 0) scale(1);
}

@media (hover: none), (pointer: coarse) {
  .ss-hover-pill {
    display: none !important;
  }
}

/* HEADER IN ALTO A SINISTRA */
.ss-header {
  position: fixed;
  top: max(18px, env(safe-area-inset-top, 18px));
  left: max(20px, env(safe-area-inset-left, 20px));
  z-index: 20;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ss-brand {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
}

#ss-project-title {
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 600;
  letter-spacing: -0.022em;
  color: #ffffff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.ss-status-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.ss-pill {
  font-size: 10.5px;
  font-weight: 500;
  padding: 3.5px 10px;
  border-radius: 980px;
  background: var(--opal-island-bg);
  border: 0.5px solid var(--opal-border);
  color: var(--ink);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.ss-pill-dark {
  background: #1d1d1f;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
}

/* CONTROLLI IN ALTO A DESTRA */
.ss-top-right {
  position: fixed;
  top: max(18px, env(safe-area-inset-top, 18px));
  right: max(20px, env(safe-area-inset-right, 20px));
  z-index: 92;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ss-icon-btn {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--opal-island-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 0.5px solid var(--opal-border);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.24s var(--ios-spring), background 0.2s ease, color 0.2s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .ss-icon-btn:hover {
    background: #ffffff;
    transform: scale(1.06);
  }
}

.ss-icon-btn:active {
  transform: scale(0.92);
}

.ss-icon-btn.active {
  background: var(--ink);
  color: #ffffff;
  border-color: var(--ink);
}

.ss-icon-btn svg {
  width: 16px;
  height: 16px;
}

.ss-counter {
  position: absolute;
  top: -3px;
  right: -3px;
  background: var(--ink);
  color: #ffffff;
  font-size: 9.5px;
  font-weight: 600;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid #f4f3ef;
}

/* =========================================================
   BARRA DI BENVENUTO & CONSOLE SEZIONATORE 3D CLAY IN ALTO
   (Rullini con Freccia ▲ Fissa al Centro e Zero Percentuali nel Titolo)
   ========================================================= */
.ss-onboarding,
.ss-clay-console {
  position: fixed;
  top: max(20px, env(safe-area-inset-top, 20px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 35;
  transition: opacity 0.45s ease, transform 0.45s var(--ios-spring);
}

.ss-onboarding {
  pointer-events: none;
}

.ss-onboarding.fade-out {
  opacity: 0;
  transform: translate(-50%, -12px);
}

.ss-onboard-rect,
.ss-clay-rect {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--opal-island-bg);
  backdrop-filter: blur(28px) saturate(190%);
  -webkit-backdrop-filter: blur(28px) saturate(190%);
  border: 0.5px solid rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  box-shadow: 0 14px 38px -4px rgba(0, 0, 0, 0.14), 0 2px 8px rgba(0, 0, 0, 0.05);
  color: var(--ink);
}

.ss-onboard-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ss-onboard-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(29, 29, 31, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  flex-shrink: 0;
}

.ss-onboard-icon svg {
  width: 18px;
  height: 18px;
}

.ss-onboard-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.ss-onboard-text strong {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.ss-onboard-text span {
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-secondary);
  white-space: nowrap;
}

.ss-onboard-divider {
  width: 1px;
  height: 38px;
  background: rgba(29, 29, 31, 0.1);
  flex-shrink: 0;
}

/* Modulo Rullino Sezione */
.ss-clay-dial-module {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 132px;
}

.ss-clay-dial-head {
  text-align: center;
}

.ss-clay-dial-head strong {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
}

/* Finestra cilindrica del Rullino (Tape Drum Viewport) con sfumatura ai bordi */
.ss-tape-viewport {
  position: relative;
  width: 100%;
  height: 36px;
  overflow: hidden;
  cursor: ew-resize;
  mask-image: linear-gradient(to right, transparent 0%, black 16%, black 84%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 16%, black 84%, transparent 100%);
}

/* =========================================================
   NASTRO SCORREVOLE A TACCHE UNIFORMI & ACCENSIONE DINAMICA (IOS 27)
   ========================================================= */
.ss-tape-ribbon {
  position: absolute;
  top: 0;
  left: 50%;
  height: 29px;
  display: flex;
  align-items: flex-end;
  will-change: transform;
  transition: transform 0.08s cubic-bezier(0.2, 0, 0.2, 1);
}

.ss-tape-viewport.is-dragging .ss-tape-ribbon {
  transition: none;
}

/* Ciascun elemento colonna: numero in alto, trattino in basso */
.ss-tape-post {
  position: relative;
  width: 7px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
}

.ss-tape-num {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  font-weight: 500;
  color: rgba(29, 29, 31, 0.38);
  line-height: 1;
  white-space: nowrap;
  transition: color 0.2s ease, transform 0.2s ease, font-weight 0.2s ease;
  pointer-events: none;
}

.ss-tape-post.is-center-num .ss-tape-num {
  color: var(--ink);
  font-weight: 700;
  transform: translateX(-50%) scale(1.08);
}

/* Trattini tutti con la stessa identica altezza costante */
.ss-tape-tick {
  width: 1.5px;
  height: 13px;
  border-radius: 1px;
  background-color: rgba(29, 29, 31, 0.22);
  transition: background-color 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
}

/* Stato di riposo: il trattino centrale è chiaramente evidenziato */
.ss-tape-post.is-center .ss-tape-tick {
  background-color: rgba(29, 29, 31, 0.65);
  width: 1.8px;
}

/* Movimento attivo (.is-active-drag): gradiente di illuminazione */
.ss-tape-viewport.is-active-drag .ss-tape-post.is-center .ss-tape-tick {
  background-color: var(--ink);
  transform: scaleY(1.08);
}

.ss-tape-viewport.is-active-drag .ss-tape-post.is-near-center .ss-tape-tick {
  background-color: rgba(29, 29, 31, 0.72);
}

.ss-tape-viewport.is-active-drag .ss-tape-post.is-mid-center .ss-tape-tick {
  background-color: rgba(29, 29, 31, 0.45);
}

/* Indicatore a freccia fissa al centro della finestra */
.ss-tape-center-indicator {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 8px;
  line-height: 1;
  color: var(--ink);
  pointer-events: none;
  z-index: 3;
}

/* Pulsante Reset Circolare Minimalista Integrato */
.ss-clay-reset-circle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: rgba(29, 29, 31, 0.06);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.24s var(--ios-spring), background 0.2s ease, opacity 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.ss-clay-reset-circle.is-idle {
  opacity: 0.35;
}

@media (hover: hover) and (pointer: fine) {
  .ss-clay-reset-circle:hover {
    opacity: 1;
    background: rgba(29, 29, 31, 0.12);
    transform: rotate(-25deg) scale(1.06);
  }
}

.ss-clay-reset-circle:active {
  transform: scale(0.9);
}

.ss-clay-reset-circle svg {
  width: 15.5px;
  height: 15.5px;
}

/* =========================================================
   BARRA INFERIORE OPALINA & PILLOLA SCORREVOLE ELASTICA
   ========================================================= */
.ss-opal-bar {
  position: relative;
  background: var(--opal-bar-bg);
  backdrop-filter: blur(28px) saturate(190%);
  -webkit-backdrop-filter: blur(28px) saturate(190%);
  border: 0.5px solid rgba(255, 255, 255, 0.84);
  box-shadow: 0 12px 34px -4px rgba(0, 0, 0, 0.16), 0 2px 8px rgba(0, 0, 0, 0.06);
  border-radius: 980px;
  padding: 5px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  width: max-content;
  max-width: calc(100vw - 16px);
}

.ss-dock {
  position: fixed;
  bottom: max(20px, calc(env(safe-area-inset-bottom, 0px) + 12px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
}

.ss-nav-modes {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 34px;
  flex-shrink: 0;
}

.ss-sliding-indicator {
  --pill-x: 0px;
  --pill-scale-x: 1;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  height: 100%;
  width: 0;
  background-color: #1d1d1f;
  border-radius: 980px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
  pointer-events: none;
  z-index: 1;
  transform-origin: center center;
  transform: translate3d(var(--pill-x), 0, 0) scaleX(var(--pill-scale-x));
  transition: transform 0.44s var(--ios-spring),
              width 0.38s var(--ios-spring);
  will-change: transform, width;
}

.ss-pill-btn {
  position: relative;
  z-index: 2;
  height: 34px;
  border: none;
  outline: none;
  border-radius: 980px;
  padding: 0 15px;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: -0.012em;
  color: rgba(29, 29, 31, 0.72);
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.26s ease, transform 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .ss-pill-btn:hover {
    color: #1d1d1f;
  }
}

.ss-pill-btn.active {
  color: #ffffff;
}

.ss-divider {
  width: 1px;
  height: 18px;
  background: rgba(29, 29, 31, 0.12);
  margin: 0 3px;
  flex-shrink: 0;
}

.ss-tool-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.24s var(--ios-spring), background 0.2s ease, color 0.2s ease;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .ss-tool-btn:hover {
    background: rgba(29, 29, 31, 0.07);
    transform: scale(1.06);
  }
}

.ss-tool-btn:active {
  transform: scale(0.88);
}

.ss-tool-btn.active {
  background: var(--graphite-active);
  color: #ffffff;
}

.ss-tool-btn svg {
  width: 16.5px;
  height: 16.5px;
}

.ss-ruler-btn svg {
  width: 19px;
  height: 19px;
}

.ss-color-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.24s var(--ios-spring), background 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .ss-color-btn:hover {
    background: rgba(29, 29, 31, 0.08);
    transform: scale(1.07);
  }
}

.ss-color-btn.active {
  background: var(--graphite-active);
  transform: scale(1.06);
}

.ss-color-btn:active {
  transform: scale(0.9);
}

.ss-color-dot {
  width: 21px;
  height: 21px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(180deg, #dfd8cf 0%, #dfd8cf 50%, #9e7b54 50%, #9e7b54 100%);
  box-shadow: inset 0 1.5px 3px rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease;
}

.ss-color-btn.active .ss-color-dot {
  box-shadow: inset 0 1.5px 3px rgba(0, 0, 0, 0.28);
  transform: scale(0.9);
}

/* =========================================================
   ETICHETTE MISURE 3D & PIN SPAZIALI
   ========================================================= */
.ss-measure-label {
  position: absolute;
  transform: translate(-50%, -50%);
  height: 32px;
  padding: 5px 5px 5px 13px;
  border-radius: 980px;
  background: var(--opal-elevated-bg);
  backdrop-filter: blur(22px) saturate(190%);
  -webkit-backdrop-filter: blur(22px) saturate(190%);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  border: 0.5px solid rgba(255, 255, 255, 0.92);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  white-space: nowrap;
  pointer-events: auto;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.15s ease;
}

.ss-measure-label:hover {
  transform: translate(-50%, -50%) scale(1.04);
  background: #ffffff;
}

.ss-measure-label .ss-del-x {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(29, 29, 31, 0.08);
  color: var(--ink-secondary);
  font-size: 12px;
  line-height: 1;
}

.ss-measure-label:hover .ss-del-x {
  background: var(--ink);
  color: #ffffff;
}

.ss-measure-label.ss-live-preview {
  pointer-events: none;
  padding: 5px 13px;
  background: #ffffff;
}

.ss-spatial-pin {
  position: absolute;
  transform: translate(-50%, -50%);
  pointer-events: auto;
  cursor: pointer;
  height: 30px;
  padding: 4px;
  border-radius: 980px;
  background: var(--opal-elevated-bg);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border: 0.5px solid rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.ss-pin-badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ink);
  color: #ffffff;
  font-size: 11px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ss-pin-badge.ss-badge-serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 13px;
}

.ss-pin-text {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: max-width 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.2s ease,
              padding 0.25s ease;
}

.ss-spatial-pin:hover {
  background: #ffffff;
  transform: translate(-50%, -50%) scale(1.06);
  padding-right: 11px;
}

.ss-spatial-pin:hover .ss-pin-text {
  max-width: 160px;
  opacity: 1;
  padding-left: 7px;
}

/* =========================================================
   POP-UP IN BASSO & DRAWER IN ALTO A DESTRA CON SBOCCIO IOS 27
   ========================================================= */
.ss-morph-popover {
  --from-x: 0px;
  position: fixed;
  bottom: calc(max(20px, calc(env(safe-area-inset-bottom, 0px) + 12px)) + 54px);
  left: 50%;
  width: min(320px, calc(100vw - 24px));
  z-index: 85;
  background: var(--opal-bar-bg);
  backdrop-filter: blur(32px) saturate(195%);
  -webkit-backdrop-filter: blur(32px) saturate(195%);
  border: 0.5px solid rgba(255, 255, 255, 0.88);
  border-radius: 26px;
  padding: 16px 20px;
  box-shadow: 0 24px 58px -8px rgba(0, 0, 0, 0.24),
              0 0 0 0.5px rgba(255, 255, 255, 0.45) inset;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  transform-origin: calc(50% + var(--from-x)) calc(100% + 28px);
  transform: translate3d(-50%, 0, 0) scale3d(0.12, 0.08, 1);
  filter: blur(12px);
  transition: transform 0.26s cubic-bezier(0.32, 0, 0.67, 0),
              opacity 0.18s ease,
              filter 0.2s ease;
  will-change: transform, opacity, filter;
}

.ss-morph-popover.open {
  opacity: 1;
  pointer-events: auto;
  transform: translate3d(-50%, 0, 0) scale3d(1, 1, 1);
  filter: blur(0px);
  transition: transform 0.5s var(--ios-spring),
              opacity 0.2s cubic-bezier(0.2, 0, 0, 1),
              filter 0.24s ease;
}

.ss-morph-popover > *,
.ss-drawer > * {
  opacity: 0;
  transform: translateY(6px) scale(0.97);
  transition: opacity 0.18s ease, transform 0.38s var(--ios-spring);
}

.ss-morph-popover.open > *,
.ss-drawer.open > * {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.ss-morph-popover.open > *:nth-child(1),
.ss-drawer.open > *:nth-child(1) { transition-delay: 0.025s; }
.ss-morph-popover.open > *:nth-child(2),
.ss-drawer.open > *:nth-child(2) { transition-delay: 0.055s; }

/* DRAWER IN ALTO A DESTRA */
.ss-drawer {
  position: fixed;
  top: calc(max(18px, env(safe-area-inset-top, 18px)) + 48px);
  right: max(20px, env(safe-area-inset-right, 20px));
  width: min(336px, calc(100vw - 28px));
  max-height: min(520px, calc(100dvh - 150px));
  z-index: 88;
  background: var(--opal-bar-bg);
  backdrop-filter: blur(32px) saturate(195%);
  -webkit-backdrop-filter: blur(32px) saturate(195%);
  border: 0.5px solid rgba(255, 255, 255, 0.88);
  border-radius: 26px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 24px 58px -8px rgba(0, 0, 0, 0.24),
              0 0 0 0.5px rgba(255, 255, 255, 0.45) inset;
  opacity: 0;
  pointer-events: none;
  transform-origin: calc(100% - 19px) -28px;
  transform: scale3d(0.12, 0.08, 1);
  filter: blur(12px);
  transition: transform 0.26s cubic-bezier(0.32, 0, 0.67, 0),
              opacity 0.18s ease,
              filter 0.2s ease;
  will-change: transform, opacity, filter;
}

.ss-drawer.open {
  opacity: 1;
  pointer-events: auto;
  transform: scale3d(1, 1, 1);
  filter: blur(0px);
  transition: transform 0.5s var(--ios-spring),
              opacity 0.2s cubic-bezier(0.2, 0, 0, 1),
              filter 0.24s ease;
}

.ss-fp-popover {
  width: min(480px, calc(100vw - 24px));
  padding: 16px 18px;
}

.ss-fp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ss-fp-subtitle {
  display: block;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-secondary);
}

.ss-fp-header strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.ss-fp-canvas-box {
  width: 100%;
  height: clamp(220px, 36vh, 320px);
  background: rgba(244, 243, 239, 0.65);
  border-radius: 16px;
  border: 0.5px solid rgba(29, 29, 31, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#ss-floorplan-canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  cursor: pointer;
}

.ss-compass {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 0.5px solid rgba(29, 29, 31, 0.18);
  background: rgba(255, 255, 255, 0.65);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 8.5px;
  font-weight: 700;
}

.ss-compass-arrow {
  width: 0;
  height: 0;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-bottom: 7px solid var(--ink);
}

/* GHIERA LUCE NATURALE CON RULLINO SCORREVOLE */
.ss-popover-title-block {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.ss-popover-title-block span {
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-secondary);
}

.ss-popover-title-block strong {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--ink);
  text-transform: capitalize;
}

.ss-dial-clean {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ss-light-tape-viewport {
  height: 42px;
}

.ss-light-tape-viewport .ss-tape-ribbon {
  height: 32px;
}

.ss-light-tape-viewport .ss-tape-post {
  width: 10px;
  height: 31px;
}

.ss-light-tape-viewport .ss-tape-num {
  font-size: 11px;
}

.ss-dial-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 0.5px solid rgba(29, 29, 31, 0.08);
}

.ss-cycle-btn {
  background: rgba(29, 29, 31, 0.08);
  color: var(--ink);
  border: none;
  border-radius: 980px;
  padding: 5px 12px;
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
}

.ss-cycle-btn.active {
  background: var(--ink);
  color: #ffffff;
}

.ss-time-readout {
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -0.025em;
}

/* CARD MATERIALI */
.ss-material-cards {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 2px 0;
}

.ss-mat-card {
  width: 72px;
  height: 88px;
  border-radius: 16px;
  padding: 3px;
  border: 1.5px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: transform 0.24s var(--ios-spring);
}

.ss-mat-card:hover {
  transform: scale(1.06);
}

.ss-mat-card.active {
  border-color: var(--ink);
}

.ss-mat-card-inner {
  width: 100%;
  height: 100%;
  border-radius: 11px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.12), 0 3px 10px rgba(0, 0, 0, 0.08);
}

.ss-mat-top { flex: 1; }
.ss-mat-bottom { flex: 1; }

/* =========================================================
   SCHEDA PRODOTTO ARREDO
   ========================================================= */
.ss-product-backdrop {
  position: fixed;
  inset: 0;
  z-index: 130;
  background: rgba(20, 20, 22, 0.42);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.ss-product-card {
  width: 100%;
  max-width: 350px;
  background: rgba(244, 243, 239, 0.96);
  backdrop-filter: blur(22px) saturate(180%);
  border: 0.5px solid rgba(255, 255, 255, 0.88);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.28);
}

.ss-product-picture-frame {
  position: relative;
  width: 100%;
  height: 215px;
  background: #ffffff;
  border-bottom: 1px solid var(--hairline);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ss-product-picture-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  mix-blend-mode: multiply;
}

.ss-prod-brand-pill {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--ink);
  color: #ffffff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 980px;
}

.ss-prod-edit-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--opal-bar-bg);
  color: var(--ink);
  border: 0.5px solid rgba(29, 29, 31, 0.2);
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 11px;
  border-radius: 980px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.ss-prod-edit-badge:hover {
  background: var(--ink);
  color: #ffffff;
}

.ss-product-body {
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ss-prod-price {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--ink);
  display: block;
}

.ss-prod-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--ink);
}

.ss-prod-desc {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-secondary);
}

.ss-product-footer {
  padding-top: 10px;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  gap: 10px;
}

.ss-prod-cta {
  flex: 1;
  height: 40px;
  border-radius: 980px;
  background: var(--ink);
  color: #ffffff;
  font-size: 12.5px;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ss-prod-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--hairline);
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
  font-size: 13px;
  cursor: pointer;
}

/* ELEMENTI INTERNI DEL DRAWER */
.ss-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ss-drawer-tabs {
  position: relative;
  display: inline-flex;
  align-items: center;
  background: rgba(29, 29, 31, 0.07);
  padding: 3px;
  border-radius: 980px;
  height: 34px;
}

.ss-drawer-tabs .ss-sliding-indicator {
  top: 3px;
  bottom: 3px;
  height: 28px;
}

.ss-tab-btn {
  position: relative;
  z-index: 2;
  height: 28px;
  padding: 0 12px;
  border-radius: 980px;
  border: none;
  background: transparent;
  color: rgba(29, 29, 31, 0.7);
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.24s ease;
}

.ss-tab-btn.active {
  color: #ffffff;
}

.ss-tab-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  min-height: 220px;
}

.ss-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.55);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.ss-switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 22px;
}
.ss-switch input { opacity: 0; width: 0; height: 0; }
.ss-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: rgba(29, 29, 31, 0.2);
  transition: .25s;
  border-radius: 980px;
}
.ss-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: .25s;
  border-radius: 50%;
}
input:checked + .ss-slider { background-color: var(--ink); }
input:checked + .ss-slider:before { transform: translateX(16px); }

.ss-close-btn {
  background: transparent;
  border: none;
  color: var(--ink-secondary);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 4px;
}

.ss-close-btn:hover {
  color: var(--ink);
}

.ss-drawer-actions {
  display: flex;
  gap: 8px;
}

.ss-btn-action {
  flex: 1;
  padding: 8px 12px;
  border-radius: 980px;
  border: none;
  background: var(--graphite-active);
  color: #ffffff;
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}

.ss-btn-action.ss-btn-secondary {
  background: rgba(255, 255, 255, 0.65);
  color: var(--ink);
}

.ss-items-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ss-item-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.58);
  cursor: pointer;
  transition: background 0.2s ease;
}

.ss-item-card:hover {
  background: #ffffff;
}

.ss-item-thumb-box {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: #ffffff;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 0.5px solid var(--hairline);
}

.ss-item-thumb-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.ss-item-info {
  flex: 1;
  overflow: hidden;
}

.ss-item-info strong {
  display: block;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ss-item-info span {
  font-size: 10.5px;
  color: var(--ink-secondary);
}

/* FORM MODALI */
.ss-modal-form {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(360px, 92vw);
  z-index: 140;
  background: var(--opal-elevated-bg);
  backdrop-filter: blur(28px) saturate(190%);
  border: 0.5px solid var(--opal-border);
  border-radius: 22px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.26);
}

.ss-field-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--ink-secondary);
  margin-top: 2px;
}

.ss-popover-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13.5px;
  margin-bottom: 2px;
}

.ss-input, #ss-comment-input {
  width: 100%;
  border-radius: 11px;
  border: 0.5px solid rgba(29, 29, 31, 0.16);
  background: #ffffff;
  color: var(--ink);
  font-family: inherit;
  font-size: 12px;
  padding: 7px 10px;
  resize: none;
  outline: none;
}

.ss-btn-small {
  padding: 0 12px;
  border-radius: 980px;
  border: none;
  background: var(--ink);
  color: #ffffff;
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
}

.ss-toast {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 150;
  background: var(--ink);
  color: #ffffff;
  font-size: 12px;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 980px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* =========================================================
   SCALABILITÀ RESPONSIVE (IPAD & MOBILE)
   ========================================================= */
@media (max-width: 900px) {
  .ss-onboard-rect, .ss-clay-rect {
    gap: 10px;
    padding: 10px 14px;
  }
  .ss-onboard-item:nth-child(5),
  .ss-onboard-divider:nth-child(4) {
    display: none;
  }
  .ss-clay-console {
    top: max(66px, calc(env(safe-area-inset-top, 18px) + 46px));
  }
  .ss-clay-dial-module {
    width: 108px;
  }
}

@media (max-width: 767px) {
  .ss-onboarding, .ss-clay-console {
    top: max(64px, calc(env(safe-area-inset-top, 18px) + 46px));
    width: calc(100vw - 20px);
  }
  .ss-onboard-rect, .ss-clay-rect {
    width: 100%;
    justify-content: space-between;
    padding: 10px 12px;
    border-radius: 16px;
    gap: 6px;
  }
  .ss-onboard-item:nth-child(7),
  .ss-onboard-divider {
    display: none;
  }
  .ss-clay-dial-module {
    flex: 1;
    min-width: 0;
    width: auto;
  }
  .ss-clay-dial-head strong {
    font-size: 10.5px;
  }
  .ss-clay-reset-circle {
    width: 30px;
    height: 30px;
  }
  .ss-onboard-text span {
    font-size: 10px;
  }
  .ss-drawer {
    right: 12px;
    width: calc(100vw - 24px);
    max-width: 336px;
  }
  .ss-opal-bar {
    padding: 4px;
    gap: 1.5px;
  }
  .ss-nav-modes {
    height: 31px;
  }
  .ss-pill-btn {
    height: 31px;
    padding: 0 10px;
    font-size: 11.5px;
  }
  .ss-tool-btn, .ss-color-btn {
    width: 31px;
    height: 31px;
  }
  .ss-divider {
    margin: 0 1.5px;
  }
}