/*
# Table of Sections - u9.css

| ID   | Name                        | Purpose                                              |
|-----:|-----------------------------|------------------------------------------------------|
| s1   | CSS Variables & Base        | TK brand tokens, fonts, root colours                 |
| s2   | Page Layout & Header        | Container, header, logo bar                          |
| s3   | Global Inputs & Toggle      | Form section, camping toggle switch                  |
| s4   | Tab Navigation              | Input tabs + output tabs                             |
| s5   | Form Sections & Cards       | Form section cards, park cards, option boxes         |
| s6   | Form Controls               | Inputs, selects, buttons                             |
| s7   | Accommodation Search UI     | Search box, dropdown list (width-contained)          |
| s8   | Result / Calc-Result Panels | Calc-result panel styling                            |
| s9   | Output Panels               | Output cards, grand total box                        |
| s10  | Breakdown & Lock Notices    | Internal section styling, lock notices               |
| s11  | Margin Toggle UI            | Hidden trigger, password modal, badge                |
| s12  | Animations & Utilities      | Fade-in, transitions, helpers                        |
*/

/* === s1: CSS Variables & Base === */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=Source+Sans+3:wght@300;400;500;600&display=swap');

:root {
  --tk-green:        #2d5a27;
  --tk-green-mid:    #3d7a35;
  --tk-green-light:  #c8dfc4;
  --tk-amber:        #c8862a;
  --tk-amber-light:  #f5e6c8;
  --tk-cream:        #faf7f0;
  --tk-sand:         #e8dfc8;
  --tk-dark:         #1a2e18;
  --tk-text:         #2c3e28;
  --tk-muted:        #6b7c66;
  --tk-border:       #c5d4c0;
  --tk-white:        #ffffff;
  --shadow-sm:  0 2px 8px  rgba(45,90,39,.08);
  --shadow-md:  0 4px 20px rgba(45,90,39,.12);
  --shadow-lg:  0 8px 40px rgba(45,90,39,.18);
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --transition: .22s ease;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  background-color: var(--tk-cream);
  color: var(--tk-text);
  font-family: 'Source Sans 3', 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

/* === s2: Page Layout & Header === */
.universal-calculator-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

.tk-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px 0 24px;
  border-bottom: 2px solid var(--tk-green-light);
  margin-bottom: 28px;
}

.tk-header img.tk-logo { height: 56px; width: auto; }

.tk-header-text h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--tk-dark);
  margin: 0 0 2px;
  line-height: 1.2;
}

.tk-header-text p {
  font-size: .85rem;
  color: var(--tk-muted);
  margin: 0;
  font-weight: 300;
  letter-spacing: .03em;
}

/* === s3: Global Inputs & Toggle === */
.global-inputs.form-section {
  background: linear-gradient(135deg, var(--tk-green) 0%, var(--tk-green-mid) 100%);
  color: var(--tk-white);
  border: none;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-md);
}

.global-inputs.form-section h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  color: var(--tk-white);
  margin-bottom: 14px;
}

.global-inputs.form-section .form-label {
  color: rgba(255,255,255,.88);
  font-size: .9rem;
}

.global-inputs.form-section .form-control {
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  color: var(--tk-white);
  border-radius: var(--radius-sm);
}

.global-inputs.form-section .form-control:focus {
  background: rgba(255,255,255,.25);
  border-color: var(--tk-amber);
  box-shadow: 0 0 0 3px rgba(200,134,42,.3);
  color: var(--tk-white);
  outline: none;
}

.global-inputs.form-section .form-control::placeholder { color: rgba(255,255,255,.5); }
.global-inputs.form-section .small.text-muted { color: rgba(255,255,255,.65) !important; }

/* Camping toggle switch */
.tk-safari-toggle {
  width: 3rem;
  height: 1.6rem;
  cursor: pointer;
  background-image: none;
  background-color: rgba(255,255,255,.3);
  border-color: rgba(255,255,255,.5);
  transition: background-color var(--transition), border-color var(--transition);
}

.tk-safari-toggle:checked {
  background-color: var(--tk-amber);
  border-color: var(--tk-amber);
}

.tk-safari-toggle:focus { box-shadow: 0 0 0 3px rgba(200,134,42,.35); outline: none; }

.safari-type-label {
  font-size: .88rem;
  color: rgba(255,255,255,.85);
  font-weight: 500;
  transition: color var(--transition);
}

.safari-type-label.active-label { color: var(--tk-white); font-weight: 700; }

/* === s4: Tab Navigation === */
.tab-group-label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--tk-muted);
  margin: 0 0 4px 2px;
}

.universal-tabs .btn-group {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--tk-border);
}

.universal-tabs .tab-button {
  background-color: var(--tk-white);
  color: var(--tk-green);
  border: none;
  border-right: 1px solid var(--tk-border);
  font-weight: 500;
  font-size: .9rem;
  padding: 11px 8px;
  transition: background-color var(--transition), color var(--transition);
  border-radius: 0 !important;
}

.universal-tabs .tab-button:last-child { border-right: none; }

.universal-tabs .tab-button:hover:not(.active) {
  background-color: var(--tk-green-light);
  color: var(--tk-dark);
}

.universal-tabs .tab-button.active {
  background: linear-gradient(135deg, var(--tk-green) 0%, var(--tk-green-mid) 100%);
  color: var(--tk-white);
  font-weight: 600;
}

/* Output tabs — amber accent for internal buttons */
.output-tabs .tab-button.internal-tab { color: var(--tk-amber); }
.output-tabs .tab-button.internal-tab.active {
  background: linear-gradient(135deg, var(--tk-amber) 0%, #a06018 100%);
  color: var(--tk-white);
}
.output-tabs .tab-button.internal-tab:hover:not(.active) {
  background-color: var(--tk-amber-light);
  color: var(--tk-dark);
}

.tab-pane { margin-top: 16px; }
.output-tab-pane { margin-top: 12px; }

/* Tab content form wrappers */
.tab-pane > div > h2,
.output-panel > h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  color: var(--tk-dark);
  margin-bottom: 20px;
}

.tab-pane form.border.rounded.bg-light {
  background-color: var(--tk-cream) !important;
  border-color: var(--tk-border) !important;
  border-radius: var(--radius-lg) !important;
  padding: 28px !important;
}

/* === s5: Form Sections & Cards === */
.form-section {
  margin-bottom: 18px;
  padding: 16px 20px;
  background-color: var(--tk-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--tk-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.form-section:hover { box-shadow: var(--shadow-md); }

.form-section h3 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--tk-green);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--tk-green-light);
}

.park-card {
  border: 1px solid var(--tk-green-light);
  border-left: 4px solid var(--tk-green);
  background-color: rgba(200,223,196,.12);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 10px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.park-card:hover { border-left-color: var(--tk-amber); box-shadow: var(--shadow-sm); }

.park-card .form-label {
  display: inline-block;
  margin-right: 8px;
  margin-bottom: 4px;
  font-size: .88rem;
  color: var(--tk-muted);
}

.park-card input[type="number"] {
  display: inline-block;
  max-width: 110px;
  padding-inline: 8px;
  margin-right: 8px;
}

.tk-option-box {
  background-color: var(--tk-amber-light) !important;
  border: 1px solid var(--tk-amber) !important;
}

/* Camping tab — amber section headers */
.camping-calculator-container .form-section { border-left: 4px solid var(--tk-amber); }
.camping-calculator-container .form-section h3 { color: var(--tk-amber); }

/* === s6: Form Controls === */
.form-control, .form-select {
  border: 1px solid var(--tk-border);
  border-radius: var(--radius-sm);
  color: var(--tk-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  background-color: var(--tk-white);
}

.form-control:focus, .form-select:focus {
  border-color: var(--tk-green);
  box-shadow: 0 0 0 3px rgba(45,90,39,.12);
  outline: none;
}

.btn-primary {
  background-color: var(--tk-green);
  border-color: var(--tk-green);
  border-radius: var(--radius-sm);
  font-weight: 600;
  letter-spacing: .02em;
  padding: 10px 24px;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
  background-color: var(--tk-dark);
  border-color: var(--tk-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active { transform: translateY(0); }

.alert-secondary {
  background-color: var(--tk-amber-light);
  border-color: var(--tk-amber);
  color: var(--tk-dark);
  border-radius: var(--radius-sm);
}

@media (max-width: 767.98px) {
  .global-inputs input[type="number"],
  .park-card input[type="number"] { max-width: 100%; display: block; margin-right: 0; }
  .park-card .form-label { display: block; margin-bottom: 2px; }
}

/* === s7: Accommodation Search UI === */
.accommodation-night {
  position: relative; /* contains the absolutely-positioned dropdown */
}

.accommodation-search {
  width: 100%;
  margin-bottom: 4px;
}

.accommodation-list {
  display: none;
  position: absolute;
  z-index: 1050;
  /* width matches the parent .accommodation-night — never overflows */
  left: 0;
  right: 0;
  max-height: 260px;
  overflow-y: auto;
  overflow-x: hidden;
  margin-top: 2px;
  padding: 6px 0;
  background-color: var(--tk-white);
  border: 1px solid var(--tk-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.accommodation-option {
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--tk-sand);
  font-size: .85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background-color .15s;
}

.accommodation-option:hover { background-color: var(--tk-green-light); color: var(--tk-dark); }
.accommodation-option:last-child { border-bottom: none; }

/* === s8: Result / Calc-Result Panels === */
.calc-result {
  background: linear-gradient(160deg, rgba(250,247,240,.95) 0%, rgba(200,223,196,.3) 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--tk-border);
  padding: 22px 26px;
  box-shadow: var(--shadow-md);
  animation: fadeInUp .3s ease;
}

.calc-result h3, .calc-result h4 {
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--tk-dark);
  margin-bottom: 14px;
}

.calc-result .bg-light.rounded {
  background-color: rgba(255,255,255,.7) !important;
  border: 1px solid var(--tk-border);
  border-radius: var(--radius-sm) !important;
}

.calc-result .bg-primary.text-white.rounded {
  background: linear-gradient(135deg, var(--tk-green) 0%, var(--tk-dark) 100%) !important;
  border-radius: var(--radius-md) !important;
  padding: 18px 22px !important;
  box-shadow: var(--shadow-md);
}

/* Universal price table wrapper */
.universal-price-table-wrap {
  background: var(--tk-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--tk-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.universal-price-table-wrap table { margin: 0; }

.universal-price-table-wrap thead tr {
  background: linear-gradient(90deg, var(--tk-green) 0%, var(--tk-green-mid) 100%);
  color: var(--tk-white);
}

.universal-price-table-wrap thead th {
  font-weight: 600;
  font-size: .88rem;
  padding: 10px 10px;
  border: none;
}

.universal-price-table-wrap tbody td {
  font-size: .9rem;
  padding: 9px 10px;
  border-bottom: 1px solid var(--tk-sand);
}

.universal-price-table-wrap tbody tr:last-child td { border-bottom: none; }
.universal-price-table-wrap tbody tr:hover td { background-color: var(--tk-green-light); }

/* === s9: Output Panels === */
.output-panel {
  background: var(--tk-white);
  border: 1px solid var(--tk-border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-md);
  animation: fadeInUp .3s ease;
}

/* Output cards row */
.output-card {
  background: var(--tk-cream);
  border: 1px solid var(--tk-border);
  border-top: 4px solid var(--tk-green);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  text-align: center;
  transition: box-shadow var(--transition);
}

.output-card:hover { box-shadow: var(--shadow-md); }

.output-card-label {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--tk-muted);
  margin-bottom: 8px;
}

.output-card-value {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--tk-green);
}

.output-card-pp {
  font-size: .78rem;
  color: var(--tk-muted);
  margin-top: 4px;
}

/* Grand total box */
.grand-total-box {
  background: linear-gradient(135deg, var(--tk-green) 0%, var(--tk-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  text-align: center;
  color: var(--tk-white);
  box-shadow: var(--shadow-lg);
}

.grand-total-label {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  opacity: .75;
  margin-bottom: 8px;
}

.grand-total-value {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 10px;
}

.grand-total-pp { font-size: .95rem; opacity: .88; }

/* Incomplete notice */
.tk-incomplete-notice {
  background: var(--tk-amber-light);
  border: 1px solid var(--tk-amber);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  color: #6b4010;
}

.tk-incomplete-notice p { margin-bottom: 8px; font-size: .95rem; }
.tk-incomplete-notice ul { font-size: .9rem; padding-left: 1.4em; }

/* Internal badge */
.internal-badge {
  display: inline-block;
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  background: var(--tk-amber);
  color: white;
  border-radius: 99px;
  padding: 2px 10px;
  vertical-align: middle;
  margin-left: 8px;
}

/* === s10: Breakdown Sections & Lock Notices === */
.breakdown-section {
  border-left: 4px solid var(--tk-green);
  padding: 16px 20px;
  background: var(--tk-cream);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 16px;
}

.breakdown-section h4 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  color: var(--tk-green);
  margin-bottom: 10px;
}

.tk-lock-notice {
  text-align: center;
  padding: 48px 24px;
  color: var(--tk-muted);
}

.tk-lock-notice .lock-icon { font-size: 2.5rem; display: block; margin-bottom: 12px; }
.tk-lock-notice p { margin: 0 0 6px; }

.font-mono { font-family: 'Courier New', Courier, monospace; font-size: .8rem; }

/* === s11: Margin Toggle UI === */
.tk-version-tag {
  display: inline-block;
  font-size: .7rem;
  color: var(--tk-border);
  cursor: default;
  user-select: none;
  margin-top: 32px;
  letter-spacing: .08em;
}

.tk-margin-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(26,46,24,.7);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  animation: fadeIn .2s ease;
}

.tk-margin-modal-overlay.visible { display: flex; }

.tk-margin-modal {
  background: var(--tk-white);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  width: 340px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  animation: scaleIn .2s ease;
}

.tk-margin-modal h4 {
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--tk-dark);
  margin-bottom: 6px;
}

.tk-margin-modal p { font-size: .85rem; color: var(--tk-muted); margin-bottom: 18px; }

.tk-margin-modal input[type="password"] {
  width: 100%;
  text-align: center;
  letter-spacing: .25em;
  font-size: 1.2rem;
  padding: 10px;
  border: 2px solid var(--tk-border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  outline: none;
  transition: border-color var(--transition);
}

.tk-margin-modal input[type="password"]:focus { border-color: var(--tk-green); }

.tk-margin-modal .modal-buttons { display: flex; gap: 10px; justify-content: center; }

.tk-margin-modal button {
  padding: 9px 22px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: .9rem;
  transition: opacity var(--transition);
}

.tk-margin-modal .btn-confirm { background: var(--tk-green); color: white; }
.tk-margin-modal .btn-cancel  { background: var(--tk-sand); color: var(--tk-text); }
.tk-margin-modal button:hover { opacity: .85; }
.tk-margin-modal .modal-error { color: #c0392b; font-size: .82rem; margin: -8px 0 10px; min-height: 1.2em; }

.tk-margin-badge {
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--tk-amber-light);
  border: 1px solid var(--tk-amber);
  border-radius: 99px;
  padding: 5px 14px 5px 10px;
  font-size: .8rem;
  font-weight: 600;
  color: #7a4a10;
  cursor: pointer;
  transition: opacity var(--transition);
  margin-left: auto;
}

.tk-margin-badge.visible { display: flex; }

.tk-margin-badge .badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--tk-amber);
  animation: pulse 2s infinite;
}

/* margin-row: hidden in client mode, shown in internal mode */
.margin-row { transition: opacity .3s; }
.margin-row.hidden-margin { display: none !important; }

/* === s12: Animations & Utilities === */
@keyframes fadeIn    { from { opacity:0 } to { opacity:1 } }
@keyframes fadeInUp  { from { opacity:0; transform:translateY(12px) } to { opacity:1; transform:translateY(0) } }
@keyframes scaleIn   { from { opacity:0; transform:scale(.93) } to { opacity:1; transform:scale(1) } }
@keyframes pulse     { 0%,100% { opacity:1 } 50% { opacity:.4 } }

@media (max-width: 600px) {
  .tk-header { flex-direction: column; text-align: center; gap: 12px; }
  .tk-margin-badge { margin-left: 0; }
  .grand-total-value { font-size: 2.2rem; }
}