/*
  Tema "Quaderno": carta bianca, inchiostro blu-nero, penna blu per le azioni
  e penna rossa solo per errori e avvisi. La quadrettatura compare solo dove
  si scrive o si studia (pannello della sessione ed esercizi).
  Caricato dopo style.css: ridefinisce i token e la composizione.
*/
:root {
  --paper: #f7f8fa;
  --white: #ffffff;
  --raised: #eef1f6;
  --ink: #18213a;
  --muted: #59627a;
  --line: #dde2ea;
  --field: #c6cedb;
  --green: #2346c8; /* penna blu: azioni, link attivi, avanzamento */
  --warm: #b8322a; /* penna rossa: errori, scadenze */
  --accent-ink: #ffffff;
  --grid: #e5eaf3;
  --margin: #eba8a2;
  --notice-bg: #fbeceb;
  --notice-ink: #8c231c;
  --radius: 6px;
  --font: "Schibsted Grotesk", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #11151c;
    --white: #171c26;
    --raised: #202736;
    --ink: #e5e8ef;
    --muted: #9ba4b7;
    --line: #283041;
    --field: #3a4356;
    --green: #9fb2ff;
    --warm: #ff8e84;
    --accent-ink: #0d1120;
    --grid: #1d2331;
    --margin: #5e3434;
    --notice-bg: #341d21;
    --notice-ink: #ffc4be;
    color-scheme: dark;
  }
}

body {
  font: 15px/1.6 var(--font);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
::selection {
  background: var(--green);
  color: var(--accent-ink);
}
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}
a:hover {
  color: var(--green);
}

/* Campi */
input,
textarea,
select {
  font-family: var(--font);
  background: var(--white);
  border: 1px solid var(--field);
  border-radius: var(--radius);
  padding: 10px 12px;
  transition: border-color 0.15s;
}
input:hover,
textarea:hover,
select:hover {
  border-color: var(--muted);
}
input:focus,
textarea:focus,
select:focus {
  border-color: var(--green);
}
input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.8;
}
label {
  font-size: 13px;
  font-weight: 600;
  margin: 18px 0 6px;
}
.hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* Pulsanti */
.primary,
.secondary {
  border-radius: var(--radius);
  font-weight: 600;
  padding: 10px 18px;
  min-height: 42px;
  transition:
    background 0.15s,
    border-color 0.15s;
}
.primary {
  background: var(--green);
  border: 1px solid var(--green);
  color: var(--accent-ink);
}
.primary:hover {
  background: color-mix(in srgb, var(--green) 85%, var(--ink));
  color: var(--accent-ink);
}
.secondary {
  background: var(--white);
  border: 1px solid var(--field);
  color: var(--ink);
}
.secondary:hover {
  background: var(--raised);
  color: var(--ink);
}
.wide {
  margin-top: 22px;
  min-height: 48px;
  font-size: 15px;
}
.text-button {
  color: var(--muted);
  font-size: 13px;
}
.text-button:hover {
  color: var(--green);
}

/* Barra laterale */
aside {
  width: 216px;
  padding: 28px 16px 24px;
  background: var(--paper);
  border-right: 1px solid var(--line);
}
.brand {
  font: 700 21px var(--font);
  letter-spacing: -0.02em;
  gap: 10px;
  padding: 0 10px;
  margin-bottom: 28px;
}
.brand span {
  display: none;
}
.brand svg {
  width: 24px;
  stroke: var(--green);
  stroke-width: 2;
}
nav,
aside nav {
  gap: 1px;
}
nav a,
aside nav a {
  font-size: 14px;
  font-weight: 500;
  padding: 7px 10px;
  border-radius: var(--radius);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  transition: none;
}
nav a:hover {
  background: var(--raised);
  color: var(--ink);
}
nav a.active {
  background: var(--white);
  color: var(--ink);
  font-weight: 600;
  box-shadow:
    inset 2px 0 0 var(--green),
    0 0 0 1px var(--line);
}
nav span {
  float: none;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}
aside .aside-bottom {
  margin: auto 0 0;
  padding: 18px 10px 0;
  font: 12px/1.5 var(--font);
  color: var(--muted);
}

/* Contenuto */
main {
  margin-left: 216px;
  max-width: 1440px;
  padding: 0 48px;
}
header {
  padding: 22px 0 0;
  border: 0;
  font-size: 13px;
  color: var(--muted);
}
.heading {
  margin: 10px 0 30px;
  max-width: 68ch;
}
h1 {
  font: 700 clamp(28px, 2.6vw, 36px) / 1.15 var(--font);
  letter-spacing: -0.025em;
  margin: 0 0 8px;
}
.heading p {
  font-size: 15px;
  color: var(--muted);
}
h2 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
h3 {
  font-family: var(--font);
}

/* Pannello della sessione: la pagina del quaderno */
.workspace {
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
  gap: 40px;
  align-items: start;
}
.workpanel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 26px 30px 30px;
}
#page-focus .workpanel,
.practice {
  --m: 52px;
  background-color: var(--white);
  background-image:
    linear-gradient(var(--margin), var(--margin)),
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:
    1px 100%,
    22px 22px,
    22px 22px;
  background-position:
    var(--m) 0,
    -1px -1px,
    -1px -1px;
  background-repeat: no-repeat, repeat, repeat;
  padding-left: calc(var(--m) + 28px);
}
.panel-head {
  margin: 0 0 4px;
  padding: 0;
  border: 0;
  align-items: center;
}
.panel-head h2 {
  font-size: 20px;
  margin: 0;
}
.panel-head > span {
  font-size: 13px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  color: var(--muted);
}
.focus-tools {
  margin: 12px 0 4px;
}
.focus-tools .secondary {
  min-height: 34px;
  padding: 6px 12px;
  font-size: 13px;
}
.duration-row select {
  margin-top: 6px;
}
.status {
  font-size: 13px;
  color: var(--muted);
  text-align: left;
}
.subject-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  margin-top: 14px;
}
#session h3 {
  font: 600 24px/1.35 var(--font);
  letter-spacing: -0.015em;
  max-width: 34ch;
}
#timer {
  font: 500 clamp(76px, 9vw, 132px) / 1.1 var(--font);
  letter-spacing: -0.045em;
  font-variant-numeric: tabular-nums;
  text-align: left;
  margin: 26px 0 18px;
  color: var(--ink);
}
body.focusing aside nav {
  opacity: 0.6;
}
body.timer-paused #timer {
  color: var(--muted);
}
.time-track {
  height: 3px;
  background: var(--line);
  margin-bottom: 20px;
}
#time-fill {
  background: var(--green);
}
.actions {
  margin-top: 20px;
}

/* Colonna destra */
.right-column {
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.sound-panel,
.daily {
  padding: 0 0 24px;
  border-bottom: 1px solid var(--line);
}
.sound-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.sound-heading h2,
.daily h2,
.thoughts h2 {
  font: 700 16px var(--font);
  margin: 0 0 10px;
}
.sound-heading h2 {
  margin: 0;
}
.sound-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-weight: 500;
  color: var(--muted);
}
.sound-toggle input,
.checkbox input,
.volume-row input {
  accent-color: var(--green);
}
.sound-toggle input {
  width: 16px;
  height: 16px;
}
.volume-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}
.volume-row label {
  margin: 0;
  font-weight: 500;
  color: var(--muted);
}
.volume-row input {
  flex: 1;
  min-width: 40px;
  padding: 0;
  border: 0;
}
.volume-row output {
  font-size: 13px;
  min-width: 38px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}
.sound-test {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--green);
  font-weight: 600;
  font-size: 14px;
}
.sound-test svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}
#audio-status {
  margin: 8px 0 0;
}
.audio-note {
  margin: 6px 0 0;
}
.daily > p {
  font-size: 14px;
  margin-bottom: 8px;
}
.daily strong {
  font: 700 36px var(--font);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  margin-right: 6px;
}
.ruled {
  font-size: 14px;
  border-color: var(--line);
}
.ruled b {
  font-variant-numeric: tabular-nums;
}
.thoughts > p {
  font-size: 13px;
  color: var(--muted);
}
.inline button {
  background: var(--raised);
  color: var(--ink);
  border-color: var(--field);
}
.inline button:hover {
  background: var(--line);
}
#thought-list li {
  font-size: 14px;
}
#thought-list button {
  color: var(--muted);
}
#thought-list button:hover {
  color: var(--warm);
}

/* Progressi, ripassi, impostazioni */
.summary-strip {
  gap: 48px;
  border-color: var(--line);
}
.summary-strip strong {
  font: 700 34px var(--font);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.summary-strip span {
  font-size: 13px;
}
.bar {
  background: var(--green);
  opacity: 0.8;
  border-radius: 2px 2px 0 0;
}
.entry,
.empty {
  border-color: var(--line);
}
.entry h3 {
  font: 600 19px/1.35 var(--font);
}
.prose {
  max-width: 68ch;
}
.prose h2 {
  font: 700 18px var(--font);
  color: var(--ink);
  margin: 30px 0 8px;
}
.prose p {
  color: var(--ink);
}
.prose a {
  color: var(--green);
}
code {
  background: var(--raised);
  padding: 1px 5px;
  border-radius: 4px;
}

.source-strip {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0 28px;
  font-size: 13px;
  color: var(--muted);
}
.source-strip a {
  color: var(--muted);
}

#toast {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  font-size: 14px;
  box-shadow: 0 6px 24px rgb(10 15 30 / 0.2);
}
::-webkit-scrollbar-track {
  background: var(--paper);
}
::-webkit-scrollbar-thumb {
  background: var(--field);
}

@media (max-width: 1100px) {
  aside {
    width: 200px;
  }
  main {
    margin-left: 200px;
    padding: 0 28px;
  }
  .workspace {
    gap: 28px;
  }
}
@media (max-width: 900px) {
  .workspace {
    grid-template-columns: 1fr;
  }
  .right-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .thoughts {
    grid-column: 1 / -1;
  }
  .daily,
  .sound-panel {
    border-bottom: 0;
  }
}
@media (max-width: 800px) {
  aside {
    position: sticky;
    top: 0;
    z-index: 5;
    width: auto;
    padding: 14px 16px 10px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .brand {
    font-size: 19px;
    margin-bottom: 10px;
    padding: 0 4px;
  }
  nav,
  aside nav {
    margin-top: 0;
    gap: 4px;
    scrollbar-width: none;
  }
  nav a,
  aside nav a {
    font-size: 13px;
    padding: 6px 10px;
    gap: 6px;
  }
  .aside-bottom {
    display: none;
  }
  main {
    margin-left: 0;
    padding: 0 16px;
  }
  header {
    padding-top: 18px;
  }
  h1 {
    font-size: 28px;
  }
  #page-focus .workpanel,
  .practice {
    --m: 26px;
    padding: 22px 18px 24px calc(var(--m) + 16px);
  }
  .source-strip {
    flex-direction: column;
    gap: 6px;
  }
}
@media (max-width: 480px) {
  .right-column {
    display: flex;
  }
  .sound-panel,
  .daily {
    border-bottom: 1px solid var(--line);
  }
  #timer {
    font-size: 76px;
  }
  .summary-strip {
    gap: 20px;
  }
  .summary-strip strong {
    font-size: 28px;
  }
}