/* ============================================================
   style.css
   House Innovation Guild Tool

   All visual styling lives here.
   No inline styles in HTML. No styles in JS files.

   Sections:
   1.  CSS Custom Properties (light theme — default)
   2.  Dark theme overrides
   3.  Reset & base
   4.  App layout (header, main)
   5.  Navigation bar
   6.  Theme toggle button
   7.  Panels
   8.  Section headings & dividers
   9.  Form elements (inputs, labels, textareas, selects)
   10. Buttons
   11. Toggle switch (dual-input pattern)
   12. Result display fields
   13. History / record cards
   14. Melange module — specific classes
   15. Utility classes
   16. Mobile overrides (max-width: 768px)
   ============================================================ */


/* ── 1. CSS Custom Properties — light theme (default) ─────── */
:root {
  /* Backgrounds */
  --bg-primary:      #ffffff;
  --bg-secondary:    #f4f5f7;
  --bg-tertiary:     #eaecf0;
  --bg-card:         #ffffff;

  /* Text */
  --text-primary:    #1a1a2e;
  --text-secondary:  #555770;
  --text-muted:      #8a8fa8;
  --text-on-accent:  #ffffff;

  /* Accent (buttons, active states, links) */
  --accent:          #4f46e5;
  --accent-hover:    #4338ca;
  --accent-light:    #ede9fe;

  /* Borders */
  --border:          #d1d5db;
  --border-focus:    #4f46e5;

  /* Status colours */
  --green:           #16a34a;
  --green-bg:        #dcfce7;
  --amber:           #d97706;
  --amber-bg:        #fef3c7;
  --red:             #dc2626;
  --red-bg:          #fee2e2;

  /* Pending / incomplete record indicator */
  --pending-border:  #f59e0b;
  --pending-bg:      #fffbeb;

  /* Shadows */
  --shadow-sm:       0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md:       0 4px 12px rgba(0, 0, 0, 0.10);

  /* Spacing */
  --radius:          8px;
  --radius-lg:       12px;

  /* Nav */
  --nav-bg:          #1a1a2e;
  --nav-text:        #c8c9d4;
  --nav-active-text: #ffffff;
  --nav-active-bg:   #4f46e5;
}


/* ── 2. Dark theme overrides ───────────────────────────────── */
[data-theme="dark"] {
  --bg-primary:      #0f0f1a;
  --bg-secondary:    #1a1a2e;
  --bg-tertiary:     #252540;
  --bg-card:         #1a1a2e;

  --text-primary:    #e8e9f0;
  --text-secondary:  #9b9db8;
  --text-muted:      #6b6d88;

  --accent:          #6366f1;
  --accent-hover:    #818cf8;
  --accent-light:    #1e1b4b;

  --border:          #2e3058;
  --border-focus:    #6366f1;

  --green:           #4ade80;
  --green-bg:        #14532d;
  --amber:           #fbbf24;
  --amber-bg:        #451a03;
  --red:             #f87171;
  --red-bg:          #450a0a;

  --pending-border:  #f59e0b;
  --pending-bg:      #1c1500;

  --shadow-sm:       0 1px 3px rgba(0, 0, 0, 0.30);
  --shadow-md:       0 4px 12px rgba(0, 0, 0, 0.40);

  --nav-bg:          #0f0f1a;
  --nav-text:        #9b9db8;
  --nav-active-text: #ffffff;
  --nav-active-bg:   #4f46e5;
}


/* ── 3. Reset & base ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

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


/* ── 4. App layout ─────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--nav-bg);
  padding: 0 16px;
  height: 52px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.app-title {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.app-main {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}


/* ── 5. Navigation bar ─────────────────────────────────────── */
.nav-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  flex: 1;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-bar::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  background: transparent;
  border: none;
  color: var(--nav-text);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0 14px;
  height: 36px;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s, color 0.15s;
  flex-shrink: 0;
}

.nav-tab:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--nav-active-text);
}

.nav-tab.active {
  background-color: var(--nav-active-bg);
  color: var(--nav-active-text);
  font-weight: 600;
}


/* ── 6. Theme toggle button ────────────────────────────────── */
.btn-theme-toggle {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  color: var(--nav-text);
  font-size: 1rem;
  width: 36px;
  height: 36px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, background-color 0.15s;
}

.btn-theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.35);
}


/* ── 7. Panels ─────────────────────────────────────────────── */
.panel {
  display: none;
}

.panel.active {
  display: block;
}

.coming-soon {
  color: var(--text-muted);
  font-style: italic;
  padding: 32px 0;
  text-align: center;
}


/* ── 8. Section headings & dividers ────────────────────────── */
.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card + .card {
  margin-top: 16px;
}


/* ── 9. Form elements ──────────────────────────────────────── */
label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input[type="text"],
input[type="number"],
input[type="date"],
textarea,
select {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9375rem;
  padding: 9px 12px;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

input:disabled,
textarea:disabled,
select:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background-color: var(--bg-tertiary);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group.full-width {
  grid-column: 1 / -1;
}


/* ── 10. Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 18px;
  min-height: 44px;
  transition: background-color 0.15s, opacity 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-danger {
  background-color: var(--red-bg);
  color: var(--red);
  border: 1px solid var(--red);
}

.btn-danger:hover {
  background-color: var(--red);
  color: #fff;
}

.btn-sm {
  font-size: 0.8rem;
  padding: 6px 12px;
  min-height: 32px;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}


/* ── 11. Toggle switch (dual-input pattern) ────────────────── */
.toggle-switch-row {
  display: flex;
  align-items: center;
  gap: 0;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
  width: fit-content;
  margin-bottom: 16px;
}

.toggle-option {
  background: transparent;
  border: none;
  border-radius: calc(var(--radius) - 2px);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 7px 16px;
  transition: background-color 0.15s, color 0.15s;
  min-height: 36px;
}

.toggle-option.active {
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}


/* ── 12. Result display fields ─────────────────────────────── */
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.result-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
}

.result-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.result-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.result-value.sand-green {
  color: var(--green);
}

.result-value.sand-amber {
  color: var(--amber);
}

.message-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}


/* ── 13. History / record cards ────────────────────────────── */
.history-section {
  margin-top: 28px;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  padding: 14px 20px;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.history-header:hover {
  background-color: var(--bg-secondary);
}

.history-header-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.history-chevron {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.history-chevron.open {
  transform: rotate(180deg);
}

/* History body: visible by default, hidden when .collapsed is added. */
.history-body {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-body.collapsed {
  display: none;
}

.run-record {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.run-record.pending {
  border-left: 3px solid var(--pending-border);
  background-color: var(--pending-bg);
}

.run-record-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.run-record-date {
  font-weight: 700;
  font-size: 0.975rem;
  color: var(--text-primary);
}

.run-record-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}

.run-data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.run-data-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.run-data-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

.badge-pending {
  font-size: 0.72rem;
  font-weight: 700;
  background-color: var(--amber-bg);
  color: var(--amber);
  border: 1px solid var(--amber);
  border-radius: 4px;
  padding: 2px 7px;
  letter-spacing: 0.04em;
}

.btn-lock {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.15s, color 0.15s;
}

.btn-lock:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-lock.unlocked {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--accent-light);
}

.run-message {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.875rem;
  color: var(--text-primary);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  margin-top: 8px;
}

.template-editor {
  margin-top: 16px;
  display: none;
}

.template-editor.open {
  display: block;
}

.placeholder-ref {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.6;
}

.placeholder-ref code {
  background-color: var(--bg-tertiary);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
}


/* ── 14. Melange module — specific classes ─────────────────── */

/* Landsraad checkbox row inside the form grid */
.form-group-landsraad {
  justify-content: flex-end;
  padding-bottom: 2px;
}

/* Inline checkbox label (used for Landsraad and edit-mode Landsraad) */
.label-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  font-size: 0.9rem;
  cursor: pointer;
}

/* The checkbox input itself within a label-checkbox */
.label-checkbox input[type="checkbox"] {
  width: auto;
  margin: 0;
}

/* Muted inline span used for optional field labels */
.label-note {
  text-transform: none;
  font-weight: 400;
}

/* Generated message wrapper — hidden until there is data to show */
.melange-message-wrapper {
  display: none;
  margin-top: 16px;
}

.melange-message-wrapper.visible {
  display: block;
}

/* Label directly above the generated message box */
.melange-message-label {
  margin-bottom: 6px;
}

/* Button row inside the message preview — tighter top margin */
.melange-message-btn-row {
  margin-top: 10px;
}

/* Template section header row — title and button side by side */
.template-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* section-title inside template-header-row needs no bottom margin */
.template-header-row .section-title {
  margin: 0;
}

/* "No runs yet" empty state paragraph */
.history-empty {
  padding: 8px 0;
}

/* Record header — date badge and pending badge grouped */
.run-record-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Message sub-section inside a read-only record */
.run-message-section {
  margin-top: 10px;
}

/* Label above the message in a read-only record */
.run-message-label {
  margin-bottom: 4px;
}

/* Button row inside a read-only record */
.run-record-btn-row {
  margin-top: 8px;
}

/* Member names data item — sits below the data grid, needs top margin */
.run-member-names-item {
  margin-top: 8px;
}

/* Edit result grid — extra top margin to separate from edit form fields */
.edit-result-grid {
  margin-top: 16px;
}

/* Read-only view — hidden while record is unlocked for editing */
.run-data-view.hidden {
  display: none;
}

/* Edit view — hidden until record is unlocked */
.run-edit-view {
  display: none;
}

.run-edit-view.visible {
  display: block;
}


/* ── 15. Utility classes ───────────────────────────────────── */
.text-muted  { color: var(--text-muted); }
.text-green  { color: var(--green); }
.text-amber  { color: var(--amber); }
.text-red    { color: var(--red); }
.italic      { font-style: italic; }

.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }

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

.banner {
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.banner-error {
  background-color: var(--red-bg);
  color: var(--red);
  border: 1px solid var(--red);
}

.banner-success {
  background-color: var(--green-bg);
  color: var(--green);
  border: 1px solid var(--green);
}


/* ── 16. Mobile overrides (max-width: 768px) ───────────────── */
@media (max-width: 768px) {

  .app-title {
    display: none;
  }

  .app-main {
    padding: 16px 12px 48px;
  }

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

  .form-group.full-width {
    grid-column: 1;
  }

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

  .run-data-grid {
    grid-template-columns: 1fr 1fr;
  }

  .btn-row {
    flex-direction: column;
  }

  .btn-row .btn {
    width: 100%;
  }

  .card {
    padding: 14px;
  }

  .run-record {
    padding: 12px 14px;
  }

  /* Prevent date input overflowing its container on small screens */
  input[type="date"] {
    max-width: 100%;
  }
}