/* =====================================
   VARIABILI TEMA
   ===================================== */
:root {
  color-scheme: light dark;
}

/* Tema chiaro (default) */
:root[data-theme="light"] {
  --bg: #f3f4f6;
  --bg-soft: #e5e7eb;

  --card: #ffffff;
  --card-soft: #f9fafb;

  --text: #020617;
  --text-soft: #4b5563;

  --accent: #22c55e;
  --accent-soft: rgba(34, 197, 94, 0.10);

  --accent2: #3b82f6;   /* Osc A */
  --accent3: #f97316;   /* Osc B */

  --border: #d1d5db;

  --radius: 16px;
  --shadow-soft: 0 8px 18px rgba(15, 23, 42, 0.06);
  --transition: 160ms ease-out;
}

/* Tema scuro */
:root[data-theme="dark"] {
  --bg: #050816;
  --bg-soft: #0b1020;

  --card: #0f172a;
  --card-soft: #050816;

  --text: #e5e7eb;
  --text-soft: #9ca3af;

  --accent: #22c55e;
  --accent-soft: rgba(34, 197, 94, 0.18);

  --accent2: #38bdf8;   /* Osc A */
  --accent3: #f97316;   /* Osc B */

  --border: #1f2937;

  --radius: 16px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.7);
  --transition: 160ms ease-out;
}
.notes-floating-btn {
  position: fixed;
  bottom: 22px;
  right: 22px;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: white;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  border: none;
  box-shadow: 0 6px 18px rgba(0,0,0,0.15);
  z-index: 9999;
  font-weight: 500;
  transition: transform .15s, box-shadow .15s;
}

.notes-floating-btn:hover {
  background: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(0,0,0,0.22);
}

.notes-floating-btn:active {
  transform: scale(0.95);
}


/* ===========================
   IMMAGINI FULLSCREEN
   =========================== */
.img-fullscreen-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  padding: 20px;
}

.img-fullscreen-overlay img {
  max-width: 98vw;
  max-height: 98vh;
  border-radius: 12px;
  border: 1px solid #fff3;
  box-shadow: 0 0 25px rgba(0,0,0,0.45);
}

/* cursore per suggerire l'uscita */
.img-fullscreen-overlay {
  cursor: zoom-out;
}

.lesson-img {
  cursor: zoom-in;
}

/* =====================================
   RESET & BODY
   ===================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont,
    "SF Pro Text", "Segoe UI", sans-serif;
}

html[data-theme="light"] body {
  background: var(--bg);
}

html[data-theme="dark"] body {
  background: radial-gradient(circle at top, #111827 0, #020617 55%);
}

body {
  color: var(--text);
  min-height: 100vh;
}

/* =====================================
   STRUTTURA GENERALE
   ===================================== */
.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* Header sito / titoli pagina */
header.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  gap: 12px;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.site-subtitle {
  font-size: 0.9rem;
  color: var(--text-soft);
}

/* Navigazione */
nav.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-link {
  text-decoration: none;
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-soft);
  background: rgba(148, 163, 184, 0.16); /* più chiaro in light */
  transition: background var(--transition), color var(--transition),
    border-color var(--transition), transform var(--transition);
}

html[data-theme="dark"] .nav-link {
  background: rgba(15, 23, 42, 0.85);
}

.nav-link:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

/* =====================================
   CARD / TIPOGRAFIA
   ===================================== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 20px 18px;
  margin-bottom: 18px;
}

/* Hero / introduzione: un po' più “speciale” */
.card--hero {
  background: var(--card);
}

html[data-theme="dark"] .card--hero {
  background: rgba(15, 23, 42, 0.96);
}

.card--soft {
  background: var(--card-soft);
}

html[data-theme="dark"] .card--soft {
  background: rgba(15, 23, 42, 0.92);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.card-kicker {
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

/* Testo */
p {
  line-height: 1.6;
  font-size: 0.95rem;
  color: var(--text-soft);
}

p + p {
  margin-top: 0.6rem;
}

/* =====================================
   IMMAGINI / GRID TEORIA
   ===================================== */
.lesson-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.two-images {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: flex-start;
  margin: 1rem 0;
}

.two-images img {
  width: 50%;
  border-radius: 12px;
  border: 1px solid var(--border);
}

@media (max-width: 700px) {
  .two-images {
    flex-direction: column;
  }
  .two-images img {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .lesson-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* =====================================
   TAG / LISTA LEZIONI
   ===================================== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-soft);
}

.lesson-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 10px;
}

.lesson-item {
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 12px 12px 10px;
  background: var(--card-soft);
  transition: border-color var(--transition), transform var(--transition),
    box-shadow var(--transition), background var(--transition);
}

html[data-theme="dark"] .lesson-item {
  background: rgba(15, 23, 42, 0.96);
}

.lesson-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
  background: rgba(34, 197, 94, 0.10);
}

.lesson-item a {
  text-decoration: none;
  color: inherit;
}

.lesson-item-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.lesson-item-meta {
  font-size: 0.8rem;
  color: var(--text-soft);
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.18);
  color: var(--text-soft);
  margin-top: 4px;
}

/* =====================================
   TOGGLE TEMA
   ===================================== */
.theme-toggle {
  border: 1px solid var(--border);
  background: var(--card-soft);
  color: var(--text);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
}

.theme-toggle-icon {
  font-size: 1rem;
}

.site-header .theme-toggle {
  margin-left: 12px;
}

/* =====================================
   WEBAPP: DB RELAZIONI dB
   ===================================== */

/* Usa la stessa .page; qui solo l’impostazione interna */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.4fr);
  gap: 16px;
  margin-top: 10px;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

.control-group {
  margin-top: 0.8rem;
}

.control-label {
  font-size: 0.85rem;
  color: var(--text-soft);
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.control-label strong {
  color: var(--text);
}

/* Slider generici (riusati anche dagli oscillatori) */
input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  background: #1f2937;
  border-radius: 999px;
}

html[data-theme="light"] input[type="range"]::-webkit-slider-runnable-track {
  background: #e5e7eb;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: -5px;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.28);
  cursor: pointer;
}

input[type="range"]::-moz-range-track {
  height: 6px;
  background: #1f2937;
  border-radius: 999px;
}

html[data-theme="light"] input[type="range"]::-moz-range-track {
  background: #e5e7eb;
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.28);
  cursor: pointer;
}

select {
  width: 100%;
  margin-top: 4px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-soft);
  color: var(--text);
  font-size: 0.9rem;
}

.hint {
  font-size: 0.8rem;
  color: var(--text-soft);
  margin-top: 6px;
}

/* Meter */
.meters {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.meter-card {
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 10px 10px 12px;
  background: var(--card-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

html[data-theme="dark"] .meter-card {
  background: #020617;
}

.meter-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-soft);
}

.meter-value {
  font-size: 1.2rem;
  font-weight: 600;
}

.meter-unit {
  font-size: 0.8rem;
  color: var(--text-soft);
  margin-left: 4px;
}

.meter-scale {
  flex: 1;
  display: flex;
  gap: 6px;
  align-items: stretch;
}

.meter-bar-wrap {
  flex: 0 0 18px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid #1f2937;
  overflow: hidden;
  display: flex;
  flex-direction: column-reverse;
}

.meter-bar-fill {
  width: 100%;
  background: linear-gradient(
    to top,
    var(--accent),
    var(--accent2)
  );
  transition: height 160ms ease-out;
  height: 0%;
}

.meter-range {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-soft);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  background: rgba(148, 163, 184, 0.16);
  color: var(--text-soft);
}

.pill--accent {
  background: var(--accent-soft);
  color: var(--accent);
}

/* =====================================
   WEBAPP: OSCILLATORI
   ===================================== */
.app {
  max-width: 1200px;
  width: 100%;
  background: var(--card);
  border-radius: 24px;
  padding: 20px 20px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 20px;
  margin: 0 auto;
}

@media (max-width: 800px) {
  .app {
    grid-template-columns: 1fr;
  }
}

.header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.title {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-pill {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--accent);
  background: rgba(34, 197, 94, 0.07);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.subtitle {
  font-size: 12px;
  color: var(--text-soft);
}

.controls-card {
  background: var(--card-soft);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius);
  padding: 16px 16px 18px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* blocchi controlli */
.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-soft);
  margin-bottom: 4px;
}

.osc-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 4px;
}

.osc-btn {
  flex: 1;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-soft);
  padding: 8px 10px;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition),
    color var(--transition), transform 80ms ease-out;
}

.osc-btn span.dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent2);
}

.osc-btn[data-oscillator="1"] span.dot {
  background: var(--accent3);
}

.osc-btn.active {
  border-color: rgba(34, 197, 94, 0.7);
  background: var(--accent-soft);
  color: var(--accent);
  transform: translateY(-1px);
}

.osc-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-soft);
  margin-top: 4px;
  margin-bottom: 2px;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  gap: 8px;
}

.slider-label-row span.main {
  font-weight: 500;
}

.value-input {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.value-input-field {
  width: 60px;
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-soft);
  font-size: 11px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.value-input-field:focus {
  outline: none;
  border-color: rgba(34, 197, 94, 0.7);
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.25);
}

.value-input-field::-webkit-outer-spin-button,
.value-input-field::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.value-input-field[type=number] {
  -moz-appearance: textfield;
}

.slider-label-row span.unit {
  color: var(--text-soft);
  font-size: 11px;
}

/* slider oscillatori: riusano le regole comuni,
   cambiamo solo la “pista” in light */
html[data-theme="light"] .controls-card input[type="range"]::-webkit-slider-runnable-track {
  background: #e5e7eb;
}
html[data-theme="light"] .controls-card input[type="range"]::-moz-range-track {
  background: #e5e7eb;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
  font-size: 12px;
  color: var(--text-soft);
}

.checkbox-row input[type="checkbox"] {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1px solid var(--border);
  accent-color: var(--accent);
  cursor: pointer;
}

.preset-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.preset-btn {
  flex: 1 1 calc(50% - 6px);
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card-soft);
  color: var(--text-soft);
  font-size: 11px;
  padding: 4px 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition),
    color var(--transition), transform 80ms ease-out;
}

.preset-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* Wave / canvas */
.wave-card {
  background: var(--card-soft);
  border-radius: var(--radius);
  padding: 14px 14px 10px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.wave-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-soft);
}

.legend {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
}

.legend-swatch {
  width: 16px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent2);
}

.legend-swatch.b {
  background: var(--accent3);
}

.legend-swatch.sum {
  background: var(--accent);
}

canvas {
  width: 100%;
  height: 260px;
  border-radius: 12px;
  background: var(--bg-soft);
  display: block;
}

#fft-canvas {
  height: 140px;
  margin-top: 4px;
}

.hint {
  font-size: 11px;
  color: var(--text-soft);
  margin-top: 4px;
  line-height: 1.5;
}

.dynamic-hint {
  margin-top: 6px;
  padding-top: 4px;
  border-top: 1px dashed rgba(148, 163, 184, 0.5);
  font-size: 11px;
  color: var(--text-soft);
}

.dynamic-hint strong {
  color: var(--text);
}

/* Audio controls */
.audio-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
  font-size: 12px;
}

.audio-btn {
  border-radius: 999px;
  padding: 6px 12px;
  border: 1px solid rgba(34, 197, 94, 0.6);
  background: var(--card);
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition), transform 80ms ease-out, box-shadow 80ms ease-out;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.3);
}

.audio-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(34, 197, 94, 0.25);
}

.audio-btn span.dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #22c55e;
}

.audio-btn.paused span.dot {
  background: #ef4444;
}

.audio-volume {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.audio-volume span {
  font-size: 11px;
  color: var(--text-soft);
  white-space: nowrap;
}

.audio-volume input[type="range"] {
  height: 4px;
}
.site-footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-soft);
  text-align: center;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

/* =====================================
   ACCORDION / SEZIONI A TENDINA
   ===================================== */

.accordion-card {
  padding: 0;                /* la card esterna la gestisce il contenuto */
  overflow: hidden;
  border-radius: var(--radius);
}

.accordion-header {
  width: 100%;
  border: none;
  background: var(--card-soft);
  color: var(--text);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font: inherit;
  text-align: left;
  transition:
    background var(--transition),
    color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.accordion-header:hover {
  background: var(--accent-soft);
  color: var(--text);
  box-shadow: var(--shadow-soft);
  transform: translateY(-1px);
}

.accordion-title-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.accordion-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.accordion-subtitle {
  font-size: 0.8rem;
  color: var(--text-soft);
}

.accordion-icon {
  font-size: 0.9rem;
  margin-left: 12px;
  transition: transform var(--transition);
}

.accordion-header[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-panel {
  border-top: 1px solid var(--border);
  background: var(--card);
}

/* =====================================
   HOME DISPENSA – INTRO & PROGRAMMA
   ===================================== */

/* Intro: spaziatura più ariosa */
.intro-card h3 {
  margin-top: 1.6rem;
  margin-bottom: 0.35rem;
}

.intro-card ul {
  margin-top: 0.3rem;
  margin-bottom: 0.8rem;
  padding-left: 1.2rem;
}

/* Accordion "Programma del corso" più leggibile */
.programma-card .accordion-header {
  padding: 0.9rem 1.2rem;
}

.programma-card .accordion-title-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
}

.programma-card .accordion-subtitle {
  font-size: 0.85rem;
  color: var(--text-soft);
}

/* Contenuto interno del pannello programma */
.programma-panel-inner {
  padding: 1.2rem 1.4rem;
  color: var(--text); /* non troppo chiaro, leggibile in entrambi i temi */
}

#programma-panel h3 {
  margin-top: 1rem;
  margin-bottom: 0.2rem;
}

#programma-panel ul {
  margin-top: 0.2rem;
  margin-bottom: 0.6rem;
  padding-left: 1.2rem;
}

.nav-download {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-download:hover {
  text-decoration: underline;
}

.lesson-nav {
  margin: 0.6rem 0 0.6rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
}

.lesson-nav-btn {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
  transition: background 0.2s ease;
}

.lesson-nav-btn:hover {
  background: var(--accent);
  color: white;
}

.lesson-quiz {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quiz-question-text {
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.quiz-option {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.quiz-option input {
  margin-top: 0.15rem;
}

.quiz-feedback {
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.quiz-feedback.ok {
  color: #16a34a; /* verde */
}

.quiz-feedback.ko {
  color: #b91c1c; /* rosso */
}

.primary-btn,
.quiz-submit-btn {
  align-self: flex-start;
  margin-top: 0.5rem;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font-size: 0.95rem;
  transition: filter 0.15s ease;
}

.primary-btn:hover,
.quiz-submit-btn:hover {
  filter: brightness(0.95);
}


.quiz-summary {
  margin-top: 0.6rem;
  font-size: 0.9rem;
}
/* ===========================
   BLOCCO APPUNTI – PAGINA
   =========================== */
/* Card principale del blocco appunti: più "app" */
.notes-page .card {
  border-radius: 20px;
  padding: 20px 20px 22px;
  background: linear-gradient(
    135deg,
    var(--card) 0%,
    var(--card-soft) 60%,
    rgba(34, 197, 94, 0.04) 100%
  );
}

/* Titolo appunti un po' più grosso (se usi un h2/h3 lì) */
.notes-page h2,
.notes-page .card-title {
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

/* Dentro l'editor: stili per titoli creati con i bottoni "Titolo medio/grande" */
.notes-editor h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent2);
  margin: 0.6rem 0 0.2rem;
}

.notes-editor h3 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--accent3);
  margin: 0.5rem 0 0.2rem;
}

/* Un filo di bordo interno per far "staccare" il foglio */
.notes-editor {
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.35);
}

/* Toolbar un filo più "chip" */
.notes-toolbar {
  padding: 6px 8px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.08);
}

html[data-theme="dark"] .notes-toolbar {
  background: rgba(15, 23, 42, 0.85);
}

.notes-tool-btn {
  border-radius: 999px;
  padding-inline: 10px;
}

/* Bottoni colore: li facciamo proprio "swatch" */
.notes-tool-btn[data-command="foreColor"] {
  padding: 4px 6px;
  border-radius: 999px;
}

.notes-page .page {
  max-width: 900px;
}

/* Login blocco appunti */
.notes-login-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: flex-end;
  margin-top: 0.6rem;
  margin-bottom: 0.4rem;
}

.notes-login-form label {
  width: 100%;
  font-size: 0.9rem;
  font-weight: 500;
}

.notes-input {
  flex: 1 1 180px;
  min-width: 0;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--border-subtle, #e5e7eb);
  font-family: inherit;
  font-size: 0.95rem;
}

.notes-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.notes-login-hint {
  font-size: 0.8rem;
  color: var(--text-soft, #6b7280);
}

/* Editor appunti */
.notes-editor-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.notes-textarea {
  width: 100%;
  min-height: 260px;
  resize: vertical;
  border-radius: 10px;
  border: 1px solid var(--border-subtle, #e5e7eb);
  padding: 0.7rem 0.8rem;
  font-family: inherit;
  font-size: 0.94rem;
  line-height: 1.45;
  background: var(--bg-soft, #f9fafb);
  color: var(--text, #111827);
}

.notes-textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  background: var(--bg, #ffffff);
}

.notes-save-status {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-soft, #6b7280);
}

/* Secondary button stile semplice */
.secondary-btn {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle, #e5e7eb);
  background: var(--card);
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text-soft);
}

.secondary-btn:hover {
  background: var(--bg-soft, #f3f4f6);
}

/* Primary = condiviso con quiz-submit-btn se vuoi */
.primary-btn,
.quiz-submit-btn {
  align-self: flex-start;
  margin-top: 0.5rem;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font-size: 0.95rem;
  transition: filter 0.15s ease;
}

.primary-btn:hover,
.quiz-submit-btn:hover {
  filter: brightness(0.95);
}

/* ===========================
   EDITOR RICCO BLOCCO APPUNTI
   =========================== */

.notes-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
  align-items: center;
}

.notes-tool-btn {
  border-radius: 6px;
  border: 1px solid var(--border-subtle, #e5e7eb);
  background: var(--card);
  padding: 4px 8px;
  font-size: 0.8rem;
  cursor: pointer;
  min-width: 32px;
  text-align: center;
}

.notes-tool-btn strong,
.notes-tool-btn em {
  font-size: 0.9rem;
}

.notes-tool-btn:hover {
  background: var(--bg, #ffffff);
}

.notes-tool-btn:nth-child(7),
.notes-tool-btn:nth-child(8),
.notes-tool-btn:nth-child(9),
.notes-tool-btn:nth-child(10) {
  /* bottoni colore: quadratino pieno */
  padding: 2px 6px;
  font-size: 1rem;
}

.notes-tool-separator {
  width: 1px;
  height: 18px;
  background: var(--border-subtle, #e5e7eb);
  margin: 0 2px;
}

/* Area editor (simile alla textarea precedente) */
.notes-editor {
  width: 100%;
  min-height: 260px;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border-subtle, #e5e7eb);
  background: var(--bg-soft, #f9fafb);
  color: var(--text, #111827);
  font-family: inherit;
  font-size: 0.94rem;
  line-height: 1.45;
  overflow-y: auto;
}

/* “placeholder” finto */
.notes-editor:empty:before {
  content: attr(placeholder);
  color: var(--text-soft, #9ca3af);
}

/* focus */
.notes-editor:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  background: var(--bg, #ffffff);
}
.notes-tool-btn[data-value="#111827"] {
  color: #111827;
}

.notes-tool-btn[data-value="#2563eb"] {
  color: #2563eb;
}

.notes-tool-btn[data-value="#16a34a"] {
  color: #16a34a;
}

.notes-tool-btn[data-value="#f97316"] {
  color: #f97316;
}

.notes-autosave-status {
  font-size: 0.8rem;
  color: #6b7280;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

/* Liste dentro l'editor appunti */
.notes-editor ul,
.notes-editor ol {
  margin: 0.3rem 0 0.6rem;
  padding-left: 1.3rem;   /* spazio dal bordo per far vedere i pallini */
  list-style-position: outside;
}

.notes-editor li {
  margin: 0.1rem 0;
}