/* ─── TOKENS ──────────────────────────────────────────────────────────────── */
:root {
  --navy:           #30459e;
  --navy-dark:      #1f2f70;
  --aqua:           #24a9e1;
  --aqua-dark:      #187aa8;
  --ink:            #172033;
  --muted:          #64708a;
  --line:           #d9e3f0;
  --soft:           #eef5fb;
  --white:          #fff;
  --good:           #2f9659;
  --maths:          #c34d55;
  --pshe:           #38761d;
  --computing:      #674ea7;
  --english:        #e69138;
  --reading:        #24a9e1;
  --maths-soft:     #faeeee;
  --pshe-soft:      #eef7eb;
  --computing-soft: #f3effb;
  --english-soft:   #fff4e8;
  --reading-soft:   #eaf8fd;
  --shared-soft:    #ddf4fd;
}

* { box-sizing: border-box; }

/* Ensure the HTML 'hidden' attribute always wins, even when a CSS class
   sets display:flex or display:grid on the same element. */
[hidden] { display: none !important; }

html {
  height: 100%;
}

body {
  height: 100%;
  margin: 0;
  font-family: "Arial Rounded MT Bold", "Arial Rounded MT", Arial, sans-serif;
  color: var(--ink);
  background: var(--navy);
  display: flex;
  flex-direction: column;
  overflow: hidden; /* panels scroll independently; no body-level scroll */
}

button, input, select { font: inherit; }
button { border: 0; cursor: pointer; }

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

/* ─── SHELL ───────────────────────────────────────────────────────────────── */
/* Full-viewport flex column: topbar takes its natural height,
   workspace fills the rest. Both panels scroll independently. */
#app {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* ─── TOPBAR ──────────────────────────────────────────────────────────────── */
.topbar {
  flex-shrink: 0; /* never squash — workspace gets all remaining height */
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px clamp(16px, 4vw, 42px);
  color: white;
}

.logo {
  width: 116px;
  height: auto;
  object-fit: contain;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--aqua);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  line-height: 1.1;
}

/* ─── WORKSPACE LAYOUT ───────────────────────────────────────────────────── */
/* Flex row: controls is fixed-width, results fills the rest.
   Both are height-constrained by the flex container and scroll internally. */
.workspace {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: row;
  gap: 16px;
  padding: 0 clamp(12px, 3vw, 28px) 16px;
}

.controls,
.results {
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(13, 21, 51, 0.18);
  min-width: 0;
}

/* ─── CONTROLS (LEFT PANEL) ─────────────────────────────────────────────── */
.controls {
  flex: 0 0 clamp(300px, 390px, 390px);
  padding: 14px;
  overflow-y: auto;
}

.field,
.fieldset,
.toggle,
.custom-panel {
  margin-bottom: 10px;
}

label,
legend,
.custom-title {
  display: block;
  margin-bottom: 4px;
  color: var(--navy);
  font-size: 0.84rem;
  font-weight: 900;
}

input[type="text"],
select {
  width: 100%;
  min-height: 36px;
  border: 2px solid var(--line);
  border-radius: 8px;
  padding: 5px 10px;
  color: var(--ink);
  background: white;
}

input[type="text"]:focus,
select:focus {
  outline: 3px solid rgba(36, 169, 225, 0.22);
  border-color: var(--aqua);
}

/* School type row */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.fieldset {
  border: 2px solid var(--line);
  border-radius: 8px;
  padding: 8px;
}

.checks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  min-width: 0;
}

.check-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: 30px;
  border: 2px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 900;
  background: #f8fbff;
  cursor: pointer;
  min-width: 0;
  transition: border-color 0.15s, background 0.15s;
}

.check-pill:has(input:checked) {
  border-color: var(--navy);
  background: #e8effc;
}

.check-pill input {
  width: 15px;
  height: 15px;
}

.toggle {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--ink);
  font-size: 0.82rem;
  line-height: 1.3;
  cursor: pointer;
}

.toggle input {
  width: 18px;
  height: 18px;
  margin-top: 1px;
  flex: 0 0 auto;
}

.custom-panel {
  padding: 12px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background: #f9fcff;
}

.custom-row {
  display: grid;
  grid-template-columns: 1fr 118px;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.custom-row label {
  margin: 0;
  color: var(--ink);
  font-size: 0.8rem;
}

/* Validation message */
.validation-msg {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fff2f3;
  border: 2px solid #e9bdc1;
  color: var(--maths);
  font-size: 0.84rem;
  line-height: 1.35;
}

/* Action buttons */
.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.primary,
.secondary,
.tab {
  min-height: 38px;
  border-radius: 8px;
  font-weight: 900;
}

.primary {
  background: var(--aqua);
  color: white;
  box-shadow: 0 4px 0 var(--aqua-dark);
  transition: transform 0.1s, box-shadow 0.1s;
}
.primary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--aqua-dark);
}

.secondary {
  background: var(--navy);
  color: white;
  box-shadow: 0 4px 0 var(--navy-dark);
}

/* ─── RESULTS (RIGHT PANEL) ──────────────────────────────────────────────── */
.results {
  flex: 1;          /* fill remaining width */
  padding: clamp(16px, 2.5vw, 28px);
  overflow-y: auto;
  position: relative; /* needed for progress overlay */
}

/* ─── PROGRESS OVERLAY ───────────────────────────────────────────────────── */
.progress-overlay {
  position: absolute;
  inset: 0;
  background: white;
  border-radius: 8px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-card {
  width: min(380px, 90%);
  text-align: center;
  padding: 32px 24px;
}

.progress-logo {
  width: 96px;
  height: auto;
  margin-bottom: 20px;
}

.progress-label {
  margin: 0 0 16px;
  color: var(--navy);
  font-size: 1.1rem;
  font-weight: 900;
}

.progress-track {
  height: 10px;
  border-radius: 99px;
  background: var(--soft);
  overflow: hidden;
  margin-bottom: 12px;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--navy) 0%, var(--aqua) 100%);
}

.progress-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
  font-family: Arial, sans-serif;
}

/* ─── EMPTY STATE ────────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;          /* fill available height in the results panel */
  min-height: 200px;
  text-align: center;
  padding: 32px 24px;
  color: var(--muted);
}

.empty-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: var(--soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.empty-icon-wrap svg {
  display: block;
}

.empty-state h3 {
  color: var(--navy);
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.empty-state p {
  max-width: 340px;
  font-family: Arial, sans-serif;
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

/* ─── PLAN OUTPUT ────────────────────────────────────────────────────────── */
.report-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  border-bottom: 3px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.report-header h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.report-logo {
  width: 112px;
  height: auto;
  object-fit: contain;
}

/* Summary cards */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.summary-card {
  min-height: 86px;
  padding: 12px;
  border-radius: 8px;
  background: var(--soft);
  border-left: 5px solid var(--aqua);
}

.summary-card strong {
  display: block;
  color: var(--navy);
  font-size: 1.3rem;
  line-height: 1.1;
}

.summary-card span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.25;
}

/* Option tabs */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  color: var(--navy);
  background: #eaf2fb;
}

.tab.active {
  color: white;
  background: var(--navy);
}

.recommended-badge {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 7px;
  border-radius: 99px;
  background: var(--aqua);
  color: white;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.tab.active .recommended-badge {
  background: rgba(255,255,255,0.25);
}

/* Option intro banner */
.option-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  padding: 14px;
  border-radius: 8px;
  background: #f8fbff;
  margin-bottom: 16px;
}

.option-intro h3 {
  color: var(--navy);
  margin-bottom: 6px;
  font-size: 1.22rem;
}

.option-intro p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.45;
  font-family: Arial, sans-serif;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.chip,
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  padding: 4px 9px;
  border-radius: 8px;
  color: white;
  font-size: 0.72rem;
  font-weight: 900;
}

.tag { min-height: 24px; padding-inline: 8px; }

.maths     { background: var(--maths); }
.pshe      { background: var(--pshe); }
.reading   { background: var(--reading); }
.computing { background: var(--computing); }
.english   { background: var(--english); }

/* ─── YEAR BLOCKS ────────────────────────────────────────────────────────── */
.year-block {
  border: 2px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 18px;
}

.year-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background: var(--navy);
  color: white;
}

.year-heading h3 {
  margin: 0;
  font-size: 1.1rem;
}

.year-heading-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.year-heading-right > span {
  color: #d7f4ff;
  font-size: 0.82rem;
  white-space: nowrap;
}

/* Rationale toggle button */
.rationale-toggle {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border-radius: 6px;
  background: rgba(255,255,255,0.15);
  color: white;
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
  transition: background 0.15s;
}

.rationale-toggle:hover {
  background: rgba(255,255,255,0.25);
}

/* ─── HALF-TERM GRID ─────────────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  overflow-x: auto;
}

.half-term {
  min-height: 200px;
  border-right: 1px solid var(--line);
  background: white;
}

.half-term:last-child { border-right: 0; }

.half-term h4 {
  margin: 0;
  padding: 9px 10px;
  color: var(--navy);
  background: #edf5fc;
  border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
}

/* ─── EVENT CARDS ────────────────────────────────────────────────────────── */
.event {
  margin: 9px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fbfdff;
  overflow: hidden;
  min-width: 0;
}

.event.maths-bg     { background: var(--maths-soft);     border-color: #e9bdc1; }
.event.pshe-bg      { background: var(--pshe-soft);      border-color: #bad9ad; }
.event.computing-bg { background: var(--computing-soft); border-color: #d4c4ed; }
.event.english-bg   { background: var(--english-soft);   border-color: #f0c797; }
.event.reading-bg   { background: var(--reading-soft);   border-color: #b7e5f6; }

/* Comprehension recap cards: subtler treatment with dashed border */
.event.recap-card {
  border-style: dashed;
  opacity: 0.92;
}

/* Shared Reading Recap: warmer teal tint to distinguish from written comprehensions */
.event.shared-reading-card {
  background: var(--shared-soft);
  border-color: #82d8f5;
}

.event-badge {
  margin-bottom: 7px;
}

.event-icon {
  display: block;
  width: 154px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.event strong {
  display: block;
  margin: 5px 0 3px;
  color: var(--ink);
  font-size: 0.82rem;
  line-height: 1.24;
  overflow-wrap: anywhere;
  word-break: normal;
  hyphens: auto;
}

.event-type-label {
  display: inline-block;
  margin-bottom: 4px;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(0,0,0,0.06);
  color: var(--ink);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.event small {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.28;
  font-family: Arial, sans-serif;
  overflow-wrap: anywhere;
  word-break: normal;
  hyphens: auto;
}

/* ─── RATIONALE ──────────────────────────────────────────────────────────── */
.rationale {
  overflow: hidden;
  max-height: 4000px;
  transition: max-height 0.45s ease;
  border-top: 2px solid var(--line);
  background: #fbfdff;
}

.rationale.collapsed {
  max-height: 0;
  border-top-color: transparent;
}

.rationale h4 {
  margin: 0 0 8px;
  padding: 14px 14px 0;
  color: var(--navy);
}

.rationale-list {
  display: grid;
  gap: 8px;
  padding: 0 14px 14px;
}

.rationale-item {
  padding: 10px 12px;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--line);
  font-family: Arial, sans-serif;
  font-size: 0.84rem;
  line-height: 1.42;
}

.rationale-item b {
  display: block;
  margin-bottom: 4px;
  color: var(--navy);
  font-family: "Arial Rounded MT Bold", Arial, sans-serif;
  font-size: 0.86rem;
}

.rationale-item p {
  margin: 0;
  color: var(--ink);
}

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  /* Stack panels vertically on narrow screens; each scrolls naturally */
  .workspace {
    flex-direction: column;
    overflow-y: auto;    /* workspace itself scrolls on mobile */
  }
  .controls {
    flex: none;          /* natural height — no longer height-constrained */
    overflow-y: visible;
  }
  .results  {
    flex: none;
    min-height: 60vh;
    overflow-y: visible;
  }
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field-row { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .topbar,
  .report-header,
  .option-intro { align-items: flex-start; }

  .topbar { flex-direction: column; }

  .report-header,
  .option-intro { grid-template-columns: 1fr; flex-direction: column; }

  .summary-grid,
  .actions      { grid-template-columns: 1fr; }

  .checks { grid-template-columns: 1fr 1fr; }

  .year-heading-right > span { display: none; }
}

/* ─── PRINT ───────────────────────────────────────────────────────────────── */
@media print {
  @page {
    size: A4 landscape;
    margin: 10mm;
  }

  /* Revert viewport-filling flex layout for print */
  html, body { height: auto; overflow: visible; display: block; }
  #app, .shell { flex: none; display: block; }

  body {
    background: white;
    color: var(--ink);
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .topbar,
  .controls,
  .tabs,
  .rationale-toggle,
  .empty-state,
  .progress-overlay {
    display: none !important;
  }

  .shell,
  .workspace,
  #app,
  .results {
    display: block;
    width: 100%;
    max-width: none;
    padding: 0;
    margin: 0;
    box-shadow: none;
    border-radius: 0;
  }

  .results { padding: 0; min-height: 0; position: static; }

  .report-header {
    min-height: 68mm;
    padding: 14mm 0 10mm;
    margin: 0 0 8mm;
    border-bottom: 4px solid var(--line);
    align-items: center;
    break-after: avoid;
  }

  .report-header .eyebrow { font-size: 13pt; }
  .report-header h2       { font-size: 29pt; line-height: 1.08; }
  .report-logo            { width: 48mm; }

  .summary-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 5mm;
    margin-bottom: 8mm;
  }

  .summary-card {
    min-height: 24mm;
    padding: 5mm;
    break-inside: avoid;
  }

  .summary-card strong { font-size: 18pt; }
  .summary-card span   { font-size: 9pt; }

  .option-intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 6mm;
    margin: 0;
    break-after: page;
    border: 1px solid var(--line);
  }

  .option-intro h3 { font-size: 18pt; }
  .option-intro p  { font-size: 11pt; }

  .legend      { max-width: 95mm; align-content: start; }
  .chip        { min-height: 9mm; padding: 1.5mm 4mm; font-size: 9pt; }

  .year-block {
    border: 0;
    margin: 0;
    overflow: visible;
    break-before: auto;
  }

  .year-block + .year-block { break-before: page; }

  .grid {
    grid-template-columns: repeat(6, 1fr);
    overflow: visible;
    border: 1px solid var(--line);
    break-after: avoid;
  }

  .year-heading {
    padding: 4mm 5mm;
    break-after: avoid;
  }

  .year-heading h3   { font-size: 18pt; }
  .year-heading span { font-size: 10pt; }

  .half-term         { min-height: 130mm; border-right: 1px solid var(--line); }
  .half-term h4      { padding: 2.5mm 3mm; font-size: 10pt; }

  .event             { margin: 2.5mm; padding: 2.5mm; break-inside: avoid; }
  .event-badge       { margin-bottom: 2mm; }
  .event-icon        { width: 33mm; }
  .event strong      { font-size: 9pt; line-height: 1.14; }
  .event-type-label  { font-size: 7pt; }
  .event small       { font-size: 7.3pt; line-height: 1.16; }

  /* Always show rationale in print regardless of collapsed state */
  .rationale,
  .rationale.collapsed {
    max-height: none !important;
    overflow: visible !important;
    border-top: 2px solid var(--line) !important;
  }

  .rationale {
    break-before: page;
    background: white;
    padding: 0;
  }

  .rationale h4 {
    padding: 5mm 6mm;
    margin: 0 0 5mm;
    border-radius: 3mm;
    background: var(--navy);
    color: white;
    font-size: 18pt;
  }

  .rationale-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 4mm;
    padding: 0;
  }

  .rationale-item {
    padding: 4mm;
    font-size: 9.2pt;
    line-height: 1.28;
    break-inside: avoid;
  }
}