/* ============================================================
   MR WALKER — BOOKING FRONTEND
   Self-contained, namespaced styles. No framework dependencies.
   Mobile-first responsive layout.
   ============================================================ */

/* --- CUSTOM PROPERTIES ------------------------------------ */
:root {
  --mw-color-bg:           #f7f6f4;
  --mw-color-surface:      #ffffff;
  --mw-color-border:       #ddd9d3;
  --mw-color-border-focus: #2c2c2c;
  --mw-color-text:         #1e1e1e;
  --mw-color-text-muted:   #6b6560;
  --mw-color-text-subtle:  #9c9590;
  --mw-color-heading:      #111111;
  --mw-color-accent:       #b8860b;   /* warm gold — trades professional */
  --mw-color-accent-dark:  #8a6308;
  --mw-color-error:        #c0392b;
  --mw-color-error-bg:     #fdf3f2;
  --mw-color-success:      #1d6a3a;
  --mw-color-include-tick: #2d6a4f;

  --mw-font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --mw-radius-sm:   4px;
  --mw-radius:      8px;
  --mw-radius-lg:   12px;

  --mw-shadow-card: 0 2px 12px rgba(0, 0, 0, 0.07);
  --mw-shadow-focus: 0 0 0 3px rgba(184, 134, 11, 0.22);

  --mw-space-xs:    0.5rem;
  --mw-space-sm:    0.75rem;
  --mw-space-md:    1.25rem;
  --mw-space-lg:    2rem;
  --mw-space-xl:    3rem;
  --mw-space-xxl:   4.5rem;

  --mw-max-width:   720px;
  --mw-page-pad:    1.25rem;
}

/* --- RESET ------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--mw-font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--mw-color-text);
  background-color: var(--mw-color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --- CONTAINER -------------------------------------------- */
.mw-container {
  max-width: var(--mw-max-width);
  margin: 0 auto;
  padding: 0 var(--mw-page-pad);
}

/* --- TYPOGRAPHY UTILITIES --------------------------------- */
.mw-section-heading {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--mw-color-heading);
  letter-spacing: -0.01em;
  margin-bottom: var(--mw-space-xs);
}

.mw-section-sub {
  color: var(--mw-color-text-muted);
  margin-bottom: var(--mw-space-md);
  font-size: 0.9375rem;
}

.mw-link {
  color: var(--mw-color-accent-dark);
  font-weight: 500;
  text-decoration-color: rgba(184, 134, 11, 0.4);
}

.mw-link:hover,
.mw-link:focus-visible {
  color: var(--mw-color-accent);
  text-decoration-color: var(--mw-color-accent);
}

.mw-link--subtle {
  color: var(--mw-color-text-subtle);
  text-decoration-color: transparent;
}

.mw-link--subtle:hover,
.mw-link--subtle:focus-visible {
  color: var(--mw-color-text-muted);
  text-decoration-color: currentColor;
}

.mw-required {
  color: var(--mw-color-error);
  margin-left: 2px;
}

.mw-optional {
  color: var(--mw-color-text-subtle);
  font-weight: 400;
  font-size: 0.8125rem;
  margin-left: 4px;
}

/* --- HEADER ----------------------------------------------- */
.mw-header {
  background-color: var(--mw-color-heading);
  color: #ffffff;
  padding: var(--mw-space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 2px solid var(--mw-color-accent);
}

.mw-brand {
  display: flex;
  align-items: center;
  gap: var(--mw-space-sm);
}

.mw-brand__name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.mw-brand__divider {
  display: block;
  width: 1px;
  height: 1.1em;
  background-color: rgba(255, 255, 255, 0.25);
}

.mw-brand__tagline {
  font-size: 0.8125rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.02em;
}

/* --- HERO ------------------------------------------------- */
.mw-hero {
  background-color: var(--mw-color-surface);
  border-bottom: 1px solid var(--mw-color-border);
  padding: var(--mw-space-xl) 0;
}

.mw-hero__content {
  max-width: 620px;
}

.mw-hero__heading {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--mw-color-heading);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: var(--mw-space-md);
}

.mw-hero__body {
  font-size: 1.0625rem;
  color: var(--mw-color-text-muted);
  margin-bottom: var(--mw-space-sm);
  line-height: 1.65;
}

.mw-hero__note {
  font-size: 0.875rem;
  color: var(--mw-color-text-subtle);
}

/* --- WHAT'S INCLUDED -------------------------------------- */
.mw-included {
  padding: var(--mw-space-xl) 0;
  background-color: var(--mw-color-bg);
  border-bottom: 1px solid var(--mw-color-border);
}

.mw-included__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--mw-space-md);
  margin-bottom: var(--mw-space-lg);
}

.mw-included__item {
  display: flex;
  gap: var(--mw-space-md);
  align-items: flex-start;
}

.mw-included__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background-color: var(--mw-color-include-tick);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 2px;
}

.mw-included__item strong {
  display: block;
  font-weight: 600;
  color: var(--mw-color-heading);
  margin-bottom: 2px;
}

.mw-included__item p {
  font-size: 0.9375rem;
  color: var(--mw-color-text-muted);
  margin: 0;
}

.mw-included__note {
  background-color: #f0ece4;
  border-left: 3px solid var(--mw-color-accent);
  padding: var(--mw-space-sm) var(--mw-space-md);
  border-radius: 0 var(--mw-radius-sm) var(--mw-radius-sm) 0;
  font-size: 0.9rem;
  color: var(--mw-color-text-muted);
}

/* --- BOOKING FORM ----------------------------------------- */
.mw-booking {
  padding: var(--mw-space-xl) 0 var(--mw-space-xxl);
  background-color: var(--mw-color-surface);
}

.mw-form {
  margin-top: var(--mw-space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--mw-space-lg);
}

.mw-form__fieldset {
  border: 1px solid var(--mw-color-border);
  border-radius: var(--mw-radius);
  padding: var(--mw-space-md);
}

.mw-form__legend {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--mw-color-heading);
  padding: 0 var(--mw-space-xs);
}

.mw-form__radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--mw-space-sm);
  margin-top: var(--mw-space-sm);
}

.mw-form__radio-label {
  display: flex;
  align-items: center;
  gap: var(--mw-space-xs);
  font-size: 0.9375rem;
  cursor: pointer;
  color: var(--mw-color-text);
  padding: var(--mw-space-sm) var(--mw-space-md);
  border: 1px solid var(--mw-color-border);
  border-radius: var(--mw-radius-sm);
  transition: border-color 0.15s, background-color 0.15s;
}

.mw-form__radio-label:hover {
  border-color: var(--mw-color-accent);
  background-color: #faf8f2;
}

.mw-form__radio-label input[type="radio"] {
  accent-color: var(--mw-color-accent);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.mw-form__radio-label:has(input:checked) {
  border-color: var(--mw-color-accent);
  background-color: #faf8f2;
}

.mw-form__section-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--mw-color-heading);
  border-bottom: 1px solid var(--mw-color-border);
  padding-bottom: var(--mw-space-xs);
  margin-bottom: calc(var(--mw-space-lg) * -0.25);
}

.mw-form__row {
  display: flex;
  flex-direction: column;
  gap: var(--mw-space-md);
}

.mw-form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mw-form__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--mw-color-text);
}

.mw-form__input,
.mw-form__select,
.mw-form__textarea {
  width: 100%;
  font-family: var(--mw-font);
  font-size: 1rem;
  color: var(--mw-color-text);
  background-color: var(--mw-color-surface);
  border: 1px solid var(--mw-color-border);
  border-radius: var(--mw-radius-sm);
  padding: 0.625rem 0.75rem;
  line-height: 1.5;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

.mw-form__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6560' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.625rem center;
  padding-right: 2.25rem;
  cursor: pointer;
}

.mw-form__textarea {
  resize: vertical;
  min-height: 100px;
}

.mw-form__textarea--small {
  min-height: 80px;
}

.mw-form__input:focus,
.mw-form__select:focus,
.mw-form__textarea:focus {
  outline: none;
  border-color: var(--mw-color-border-focus);
  box-shadow: var(--mw-shadow-focus);
}

.mw-form__input:invalid:not(:placeholder-shown),
.mw-form__select:invalid,
.mw-form__textarea:invalid:not(:placeholder-shown) {
  border-color: var(--mw-color-error);
}

.mw-form__input::placeholder,
.mw-form__textarea::placeholder {
  color: var(--mw-color-text-subtle);
}

/* Narrow row for postcode */
.mw-form__row--narrow {
  max-width: 200px;
}

/* --- TIER 2 SECTION --------------------------------------- */
.mw-tier2 {
  border: 1px solid var(--mw-color-border);
  border-radius: var(--mw-radius-lg);
  padding: var(--mw-space-lg);
  background-color: var(--mw-color-bg);
  display: flex;
  flex-direction: column;
  gap: var(--mw-space-md);
}

.mw-tier2__header {
  display: flex;
  flex-direction: column;
  gap: var(--mw-space-xs);
}

.mw-tier2__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--mw-color-heading);
}

.mw-tier2__desc {
  font-size: 0.875rem;
  color: var(--mw-color-text-muted);
  line-height: 1.55;
}

/* --- ERROR STATE ------------------------------------------ */
.mw-form__error {
  background-color: var(--mw-color-error-bg);
  border: 1px solid rgba(192, 57, 43, 0.25);
  border-radius: var(--mw-radius-sm);
  padding: var(--mw-space-sm) var(--mw-space-md);
  font-size: 0.9375rem;
  color: var(--mw-color-error);
}

/* --- SUBMIT AREA ------------------------------------------ */
.mw-form__submit-area {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--mw-space-sm);
}

.mw-form__submit-note {
  font-size: 0.8125rem;
  color: var(--mw-color-text-muted);
  line-height: 1.5;
}

/* --- BUTTON ----------------------------------------------- */
.mw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--mw-space-xs);
  font-family: var(--mw-font);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--mw-radius-sm);
  cursor: pointer;
  padding: 0.75rem 1.75rem;
  transition: background-color 0.15s, transform 0.1s, opacity 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.mw-btn--primary {
  background-color: var(--mw-color-accent);
  color: #ffffff;
}

.mw-btn--primary:hover:not(:disabled) {
  background-color: var(--mw-color-accent-dark);
}

.mw-btn--primary:active:not(:disabled) {
  transform: scale(0.985);
}

.mw-btn--primary:focus-visible {
  outline: none;
  box-shadow: var(--mw-shadow-focus);
}

.mw-btn:disabled,
.mw-btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
}

.mw-btn__loading {
  display: none;
}

.mw-btn--loading .mw-btn__label {
  display: none;
}

.mw-btn--loading .mw-btn__loading {
  display: inline;
}

/* --- FOOTER ----------------------------------------------- */
.mw-footer {
  background-color: var(--mw-color-heading);
  padding: var(--mw-space-lg) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mw-footer__text {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

/* --- RESPONSIVE ------------------------------------------- */
@media (min-width: 560px) {
  :root {
    --mw-page-pad: 2rem;
  }

  .mw-hero__heading {
    font-size: 2.25rem;
  }

  .mw-form__row--two {
    flex-direction: row;
  }

  .mw-form__row--two > .mw-form__group {
    flex: 1;
  }

  .mw-form__radio-group {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  .mw-hero {
    padding: var(--mw-space-xxl) 0;
  }

  .mw-included {
    padding: var(--mw-space-xxl) 0;
  }

  .mw-booking {
    padding: var(--mw-space-xxl) 0 calc(var(--mw-space-xxl) * 1.25);
  }
}

/* --- UTILITY ---------------------------------------------- */
[hidden] {
  display: none !important;
}