/* SPDX-License-Identifier: GPL-3.0-or-later */
/* =========================================================================
   Qreate — Design tokens
   Basato sul design system "Technical Minimalist" (Verde Acqua / Charcoal).
   Quattro temi: auto (segue il sistema), light, dark, amoled.
   ========================================================================= */

/* Font auto-ospitati (Geist, JetBrains Mono — licenza SIL OFL 1.1, vedi
   fonts/LICENSE-*.txt). Nessuna richiesta esce verso servizi di terze parti
   (es. Google Fonts): l'app resta interamente offline e non trasmette mai
   l'indirizzo IP dell'utente a server esterni solo per caricare un font. */
@font-face {
  font-family: 'Geist';
  src: url('../fonts/geist-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../fonts/geist-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../fonts/geist-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist';
  src: url('../fonts/geist-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jbm-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jbm-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/jbm-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  /* --- Tipografia --- */
  --font-display: 'Geist', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* --- Radius (linguaggio "Soft Technical") --- */
  --r-sm: 0.25rem;
  --r-md: 0.75rem;
  --r-lg: 1rem;
  --r-xl: 1.5rem;
  --r-full: 9999px;

  /* --- Spaziatura --- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --container-max: 1280px;

  /* --- Elevazione --- */
  --shadow-1: 0 8px 24px rgba(0, 0, 0, 0.28);
  --shadow-2: 0 16px 40px rgba(0, 0, 0, 0.38);

  /* --- Motion --- */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 120ms;
  --dur-med: 220ms;
}

/* -------------------------------------------------------------------------
   Palette — Dark (default / riferimento Design System)
   ------------------------------------------------------------------------- */
:root,
[data-theme='dark'] {
  --color-bg: #121619;
  --color-surface: #1c2126;
  --color-surface-low: #171b1e;
  --color-surface-high: #262c31;
  --color-border: #2d353d;
  --color-border-strong: #3c464e;

  --color-text: #eef1f0;
  --color-text-muted: #9aa8a3;
  --color-text-faint: #6c7975;

  --color-primary: #36d7b7;
  --color-primary-strong: #5df4d2;
  --color-on-primary: #062723;

  --color-danger: #ff8a80;
  --color-on-danger: #3a0a06;

  --scrim: rgba(6, 10, 9, 0.6);
  --checker-a: #1c2126;
  --checker-b: #22282e;
}

/* -------------------------------------------------------------------------
   Palette — AMOLED (nero assoluto, per schermi OLED)
   ------------------------------------------------------------------------- */
[data-theme='amoled'] {
  --color-bg: #000000;
  --color-surface: #0a0d0c;
  --color-surface-low: #000000;
  --color-surface-high: #14100f;
  --color-border: #1d2422;
  --color-border-strong: #2a3330;

  --color-text: #eef1f0;
  --color-text-muted: #8b9a95;
  --color-text-faint: #5c6864;

  --color-primary: #36d7b7;
  --color-primary-strong: #5df4d2;
  --color-on-primary: #001512;

  --color-danger: #ff8a80;
  --color-on-danger: #3a0a06;

  --scrim: rgba(0, 0, 0, 0.75);
  --checker-a: #050706;
  --checker-b: #0c0f0e;
}

/* -------------------------------------------------------------------------
   Palette — Light (deriva la stessa identità mantenendo verde acqua/grigi)
   ------------------------------------------------------------------------- */
[data-theme='light'] {
  --color-bg: #f4f7f6;
  --color-surface: #ffffff;
  --color-surface-low: #eef2f1;
  --color-surface-high: #e6ebe9;
  --color-border: #dde4e2;
  --color-border-strong: #c7d0cd;

  --color-text: #10171a;
  --color-text-muted: #5b6864;
  --color-text-faint: #8a9793;

  --color-primary: #0a7c68;
  --color-primary-strong: #086b59;
  --color-on-primary: #f5fffb;

  --color-danger: #c02b1f;
  --color-on-danger: #ffffff;

  --scrim: rgba(16, 23, 26, 0.4);
  --checker-a: #ffffff;
  --checker-b: #edf1f0;
}

/* =========================================================================
   Reset essenziale
   ========================================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.6;
  transition: background-color var(--dur-med) var(--ease), color var(--dur-med) var(--ease);
}

img,
svg {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

a {
  color: var(--color-primary);
}

h1,
h2,
h3,
p {
  margin: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* focus visibile ovunque */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* =========================================================================
   Header
   ========================================================================= */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.brand svg {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
    background var(--dur-fast) var(--ease);
}

.icon-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

/* --- Theme switcher --- */
.theme-switcher {
  position: relative;
}

.theme-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  min-width: 190px;
  background: var(--color-surface-high);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  padding: var(--space-2);
  display: none;
  flex-direction: column;
  gap: 2px;
}

.theme-switcher[data-open='true'] .theme-menu {
  display: flex;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: transparent;
  color: var(--color-text);
  border-radius: var(--r-md);
  cursor: pointer;
  font-size: 0.9rem;
  text-align: left;
}

.theme-option svg {
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
}

.theme-option:hover {
  background: var(--color-surface-low);
}

.theme-option[aria-checked='true'] {
  background: color-mix(in srgb, var(--color-primary) 16%, transparent);
  color: var(--color-primary);
}

.theme-option[aria-checked='true'] svg {
  color: var(--color-primary);
}

/* =========================================================================
   Layout principale
   ========================================================================= */
.app-shell {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) var(--space-8);
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

@media (min-width: 960px) {
  .app-shell {
    padding: var(--space-6) var(--space-5) var(--space-8);
    grid-template-columns: minmax(0, 420px) 1fr;
    align-items: start;
  }
}

.panel-preview {
  order: -1;
}

@media (min-width: 960px) {
  .panel-preview {
    order: 2;
    position: sticky;
    top: calc(72px + var(--space-5));
  }
  .panel-controls {
    order: 1;
  }
}

/* =========================================================================
   Card
   ========================================================================= */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-xl);
  padding: var(--space-5);
}

.intro h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.intro p {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
}

/* =========================================================================
   Form primitives
   ========================================================================= */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.field:last-child {
  margin-bottom: 0;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.field label,
.field-legend {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.field label svg,
.field-legend svg {
  width: 14px;
  height: 14px;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--color-text-faint);
}

input[type='text'],
input[type='search'],
select {
  width: 100%;
  padding: 11px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  color: var(--color-text);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

input[type='text']:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 22%, transparent);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239aa8a3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

/* pill / segmented select for enums */
.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.pill {
  padding: 8px 14px;
  border-radius: var(--r-full);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}

.pill[aria-pressed='true'] {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 18%, transparent);
  color: var(--color-primary);
}

.pill:hover {
  border-color: var(--color-primary);
}

/* --- Range slider --- */
.range-field .range-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

input[type='range'] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 4px;
  border-radius: var(--r-full);
  background: linear-gradient(
    to right,
    var(--color-primary) 0%,
    var(--color-primary) var(--fill, 50%),
    var(--color-surface-high) var(--fill, 50%),
    var(--color-surface-high) 100%
  );
  outline: none;
}

input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary-strong);
  border: 3px solid var(--color-on-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease);
}

input[type='range']::-webkit-slider-thumb:hover {
  transform: scale(1.12);
}

input[type='range']::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary-strong);
  border: 3px solid var(--color-on-primary);
  cursor: pointer;
}

input[type='range']::-moz-range-track {
  height: 4px;
  border-radius: var(--r-full);
  background: var(--color-surface-high);
}

.range-value {
  min-width: 46px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-primary);
}

/* --- Color field (native color input + hex text) --- */
.color-field {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  padding: 6px 10px 6px 6px;
}

.color-field:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 22%, transparent);
}

.color-field input[type='color'] {
  -webkit-appearance: none;
  appearance: none;
  width: 30px;
  height: 30px;
  border: none;
  border-radius: var(--r-sm);
  overflow: hidden;
  background: none;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}

.color-field input[type='color']::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-field input[type='color']::-webkit-color-swatch {
  border: 1px solid var(--color-border);
  border-radius: var(--r-sm);
}

.color-field input[type='text'] {
  border: none;
  background: none;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  width: 100%;
}

.color-field input[type='text']:focus {
  outline: none;
  box-shadow: none;
}

/* --- Toggle switch --- */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.toggle-row .field-hint-title {
  font-size: 0.9rem;
  color: var(--color-text);
}

.switch {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch .track {
  position: absolute;
  inset: 0;
  background: var(--color-surface-high);
  border: 1px solid var(--color-border);
  border-radius: var(--r-full);
  transition: background var(--dur-fast) var(--ease);
  cursor: pointer;
}

.switch .track::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 50%;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--color-text-muted);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.switch input:checked + .track {
  background: color-mix(in srgb, var(--color-primary) 30%, transparent);
  border-color: var(--color-primary);
}

.switch input:checked + .track::before {
  transform: translate(18px, -50%);
  background: var(--color-primary);
}

/* =========================================================================
   Sezioni ad accordion (raggruppamento funzionalità)
   ========================================================================= */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-top: var(--space-4);
  background: var(--color-surface);
}

.accordion + .accordion {
  margin-top: var(--space-3);
}

.accordion summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary .sect-icon {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.accordion summary .chevron {
  margin-left: auto;
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  transition: transform var(--dur-med) var(--ease);
}

.accordion[open] summary .chevron {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 0 var(--space-4) var(--space-4);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}

fieldset {
  border: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

fieldset:disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* =========================================================================
   Bottoni
   ========================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 20px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: filter var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn:active {
  transform: scale(0.98);
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background: color-mix(in srgb, var(--color-primary) 14%, transparent);
}

.btn-ghost {
  background: var(--color-surface-low);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-border-strong);
}

.btn-row {
  display: flex;
  gap: var(--space-3);
}

/* =========================================================================
   Preview
   ========================================================================= */
.preview-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.preview-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 420px;
  border-radius: var(--r-xl);
  border: 1px solid var(--color-border);
  background-image: linear-gradient(45deg, var(--checker-a) 25%, transparent 25%),
    linear-gradient(-45deg, var(--checker-a) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--checker-a) 75%),
    linear-gradient(-45deg, transparent 75%, var(--checker-a) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
  background-color: var(--checker-b);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
}

#qr-render-target {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#qr-render-target svg {
  width: 100%;
  height: 100%;
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-faint);
}

.preview-placeholder svg {
  width: 64px;
  height: 64px;
}

.preview-meta {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

.chip {
  padding: 4px 10px;
  border-radius: var(--r-full);
  background: var(--color-surface-low);
  border: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* =========================================================================
   Modale (Info + Toast)
   ========================================================================= */
dialog {
  border: none;
  padding: 0;
  background: transparent;
  max-width: min(560px, 92vw);
  width: 100%;
}

dialog::backdrop {
  background: var(--scrim);
  backdrop-filter: blur(3px);
}

.modal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-xl);
  padding: var(--space-5);
  box-shadow: var(--shadow-2);
  max-height: 82vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-body p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.modal-subhead {
  font-size: 0.95rem;
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.credit-list {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.credit-list li {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-low);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  font-size: 0.85rem;
}

.credit-list .credit-name {
  font-weight: 600;
  color: var(--color-text);
}

.credit-list .credit-role {
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

/* Toast di conferma */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 12px);
  background: var(--color-surface-high);
  border: 1px solid var(--color-primary);
  color: var(--color-text);
  padding: 12px 18px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-2);
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.toast svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
}

.toast[data-visible='true'] {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* --- Color trigger + popover (color picker scritto da zero) --- */
.color-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: 8px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  cursor: pointer;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
}

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

.color-trigger-swatch {
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: var(--r-sm);
  border: 1px solid var(--color-border-strong);
  flex-shrink: 0;
  overflow: hidden;
  background-image: linear-gradient(45deg, #666 25%, transparent 25%),
    linear-gradient(-45deg, #666 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #666 75%),
    linear-gradient(-45deg, transparent 75%, #666 75%);
  background-size: 8px 8px;
  background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
}

.color-trigger-swatch .swatch-fill {
  position: absolute;
  inset: 0;
}

.color-popover {
  position: absolute;
  z-index: 60;
  display: none;
  flex-direction: column;
  gap: var(--space-3);
  width: 240px;
  padding: var(--space-3);
  background: var(--color-surface-high);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
}

.cp-sv-wrap {
  position: relative;
  width: 100%;
  height: 140px;
  border-radius: var(--r-md);
  overflow: hidden;
  touch-action: none;
  cursor: crosshair;
}

.cp-sv-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.cp-sv-thumb {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cp-slider-row {
  display: flex;
  align-items: center;
}

.cp-hue-wrap,
.cp-alpha-wrap {
  position: relative;
  width: 100%;
  height: 14px;
  border-radius: var(--r-full);
  touch-action: none;
  cursor: pointer;
}

.cp-hue-track {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    to right,
    #f00 0%,
    #ff0 17%,
    #0f0 33%,
    #0ff 50%,
    #00f 67%,
    #f0f 83%,
    #f00 100%
  );
}

.cp-alpha-track {
  position: absolute;
  inset: 0;
  border-radius: inherit;
}

.cp-hue-thumb,
.cp-alpha-thumb {
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--color-surface-high);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cp-fields {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cp-hex-input {
  flex: 1;
  padding: 8px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-sm);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
}

.cp-hex-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.cp-alpha-value {
  min-width: 42px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.cp-swatches {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}

.cp-swatch {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--r-sm);
  border: 1px solid var(--color-border-strong);
  cursor: pointer;
  overflow: hidden;
  background-image: linear-gradient(45deg, #666 25%, transparent 25%),
    linear-gradient(-45deg, #666 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #666 75%),
    linear-gradient(-45deg, transparent 75%, #666 75%);
  background-size: 8px 8px;
  background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
  padding: 0;
}

.cp-swatch-fill {
  position: absolute;
  inset: 0;
}

.cp-swatch:hover {
  border-color: var(--color-primary);
}

/* =========================================================================
   Quick preset: pill trascinabili, cestino, pulsante "+"
   ========================================================================= */
.pill-draggable {
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.pill-ghost {
  position: fixed;
  z-index: 200;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(1.06);
  box-shadow: var(--shadow-2);
  opacity: 0.96;
}

.pill-placeholder {
  border: 1.5px dashed var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  min-width: 56px;
}

.pill-add {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  padding: 8px;
  border-radius: var(--r-full);
  border: 1px dashed var(--color-border-strong);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}

.pill-add:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.preset-trash {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 0;
  margin-bottom: 0;
  overflow: hidden;
  border-radius: var(--r-md);
  border: 1.5px dashed transparent;
  color: var(--color-text-faint);
  font-size: 0.8rem;
  opacity: 0;
  transition: all var(--dur-med) var(--ease);
}

.preset-trash svg {
  width: 18px;
  height: 18px;
}

.preset-trash-visible {
  height: 48px;
  margin-bottom: var(--space-3);
  opacity: 1;
  border-color: var(--color-border-strong);
  background: var(--color-surface-low);
}

.preset-trash-armed {
  border-color: var(--color-danger);
  background: color-mix(in srgb, var(--color-danger) 16%, transparent);
  color: var(--color-danger);
  transform: scale(1.02);
}

/* Dialog nome nuovo preset: riusa lo stile di .modal-card / .field già definiti */
#preset-name-dialog .modal-card {
  max-width: 360px;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--dur-fast) var(--ease);
}

.github-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.github-link:hover {
  color: var(--color-primary);
}

.github-link-footer {
  margin-top: var(--space-3);
  justify-content: center;
}

.license-line {
  font-size: 0.82rem;
  color: var(--color-text-faint);
  margin-top: var(--space-2);
}

.license-line a {
  color: var(--color-text-muted);
}

/* =========================================================================
   Footer
   ========================================================================= */
.app-footer {
  text-align: center;
  padding: var(--space-6) var(--space-4) var(--space-7);
  color: var(--color-text-faint);
  font-size: 0.8rem;
}

.app-footer a {
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .field-row {
    grid-template-columns: 1fr;
  }
}