/* === Surf-Booking v4.1 | polished & fully readable Step 2 === */

/* ── DESIGN TOKENS ───────────────────────────────────────────────────────── */
:root {
  --primary-black: #000000; /* Primary color: Black */
  --light-grey: #333333; /* Lighter shade for hover/accents */
  --dark-grey: #1a1a1a; /* Slightly darker shade if needed for contrast */
  --gold: #ffcb47; /* Keeping the gold for potential accent */

  --bg: rgba(255, 255, 255, .95); /* Keep white background for card glass effect */
  --glass: rgba(255, 255, 255, .88); /* Keep white for card glass effect */
  --text: #333333; /* Soft black for general text */
  --box-bg: #F5F5F5; /* Very light grey for boxes to blend better */
  --box-border: #E0E0E0; /* Soft grey border for boxes */
  --input-border: #CCCCCC; /* A neutral grey for input borders */

  --ff: "Inter", sans-serif;
  --xs: .5rem;
  --s: .75rem;
  --m: 1rem;
  --l: 1.25rem;
  --xl: 1.5rem;

  --btn-h: 40px;
  --tap: 40px;
  --step-pct: 0%;
}

/* ── GLOBAL RESET ─────────────────────────────────────────────────────────── */
.sb-bg *,
.sb-bg *::before,
.sb-bg *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--ff);
  color: var(--text);
  background: #fff;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
}

/* ── HERO BACKDROP ───────────────────────────────────────────────────────── */
.sb-bg {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6vh 1rem;
  background: white; /* This should ideally be the background image of your site */
}

@media (max-width: 767px) {
  .sb-bg {
    background-attachment: scroll;
  }
}

.sb-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .55); /* Dark overlay for readability */
  backdrop-filter: blur(2px);
  z-index: -1;
}

/* ── GLASS CARD ───────────────────────────────────────────────────────────── */
.sb-card {
  width: 100%;
  max-width: 480px;
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 18px;
  box-shadow: 0 24px 55px rgba(0, 0, 0, .45);
  backdrop-filter: blur(14px) saturate(140%);
  padding: var(--xl) var(--l) calc(var(--xl) * 1.25);
  display: flex;
  flex-direction: column;
  gap: var(--l);
}

@supports not (backdrop-filter: blur(8px)) {
  .sb-card {
    background: var(--bg);
  }
}

/* ── PROGRESS BAR ────────────────────────────────────────────────────────── */
.sb-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  border-radius: 18px 18px 0 0;
  background: #d9e2e3; /* Neutral background for progress bar track */
  overflow: hidden;
}

.sb-progress span {
  width: var(--step-pct);
  height: 100%;
  background: var(--gold); /* Gold for progress indicator */
  transition: width .25s;
}

/* ── TYPOGRAPHY ──────────────────────────────────────────────────────────── */
h1,
h2 {
  margin: 0;
  font-weight: 700;
  color: var(--primary-black); /* Headings in primary black */
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.35rem;
}

.sb-label {
  font-weight: 600;
  margin-bottom: var(--xs);
  color: var(--text); /* Labels in standard text color */
}

.sb-price {
  text-align: center;
  margin: var(--s) 0 var(--xs);
  font: 700 2rem/1 var(--ff);
  color: var(--primary-black); /* Price in primary black */
}

/* ── HOURS PICKER (Plus/Minus Buttons) ──────────────────────────────────── */
.sb-hours {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--l);
  margin-bottom: var(--xs);
}

.sb-pm {
  width: var(--tap);
  height: var(--tap);
  display: grid;
  place-content: center;
  background: var(--primary-black); /* Buttons in primary black */
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s, background-color .15s;
}

.sb-pm:hover:not(:active) {
  transform: scale(1.08);
  background: var(--light-grey); /* Lighter grey on hover */
}

.sb-pm:active {
  transform: scale(.92);
}

#hours-show,
#people-show { /* Added #people-show for consistency */
  min-width: 48px;
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-black); /* Numbers in primary black */
}

#hours {
  display: none;
}

/* ── BOX & RULES ─────────────────────────────────────────────────────────── */
.sb-box {
  background: var(--box-bg); /* Light grey background for boxes */
  border: 1px solid var(--box-border); /* Soft grey border for boxes */
  border-radius: 12px;
  padding: var(--m) var(--s);
  display: flex;
  flex-direction: column;
  gap: var(--s);
}

.sb-box h3 {
  margin: 0 0 var(--s);
  font: 700 1.15rem/1 var(--ff);
  color: var(--primary-black); /* Box headings in primary black */
}

.sb-box label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: .95rem;
  color: var(--text);
}

.sb-rules {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sb-rules li {
  font-size: .95rem;
  font-weight: 500;
  margin: .2rem 0;
  color: var(--text);
}

/* ── FORMS & NAVIGATION ──────────────────────────────────────────────────── */
.sb-form {
  display: flex;
  flex-direction: column;
  gap: var(--m);
  margin-bottom: var(--l);
}

.sb-field label {
  display: block;
  font-weight: 600;
  font-size: .95rem;
  margin-bottom: .3rem;
  color: var(--text);
}

.sb-field input {
  width: 100%;
  min-height: var(--btn-h);
  padding: var(--s) var(--m);
  font-size: .95rem;
  border: 1px solid var(--input-border); /* Neutral grey border for inputs */
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

.sb-field input:focus {
  border-color: var(--primary-black); /* Primary black on focus */
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, .25); /* Primary black shadow on focus */
}

.sb-nav {
  display: flex;
  gap: var(--s);
  margin-top: var(--xs);
}

.sb-back {
  flex: 4;
}

.sb-next {
  flex: 6;
}

@media (max-width: 400px) {
  .sb-nav {
    flex-direction: column;
  }

  .sb-nav button {
    width: 100% !important;
  }
}

.sb-next,
.sb-back {
  min-height: var(--btn-h);
  padding: .25rem 0;
  border: none;
  border-radius: 10px;
  font: 700 1rem/1 var(--ff);
  cursor: pointer;
  transition: opacity .15s, transform .15s, background-color .15s;
}

.sb-next {
  background: var(--primary-black); /* "Next" button in primary black */
  color: #fff;
}

.sb-back {
  background: #e7eff0; /* Keep a light, neutral background for "Back" */
  color: var(--text);
}

.sb-next:hover:not(:disabled) {
  opacity: .88;
  transform: translateY(-1px);
  background: var(--light-grey); /* Lighter grey on hover for Next */
}

.sb-back:hover:not(:disabled) {
  opacity: .88;
  transform: translateY(-1px);
  background: #d0d8da; /* Slightly darker neutral on hover for Back */
}

.sb-next:disabled {
  opacity: .45;
  cursor: not-allowed;
}

/* ── STEP VISIBILITY ───────────────────────────────────────────────────── */
.sb-step {
  display: none;
  flex-direction: column;
  gap: var(--l);
}

.sb-show {
  display: flex;
}

/* ── SLOT GRID (Step 2) ────────────────────────────────────────────────── */
.sb-slot-holder {
  margin-top: var(--m);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--xs);
}

.sb-slot {
  padding: var(--s) var(--m);
  border: 2px solid var(--input-border); /* Consistent border with inputs */
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-weight: 600;
  font-size: .85rem;
  text-align: center;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}

.sb-slot:not(.sb-picked):hover {
  background: var(--light-grey) !important; /* Lighter grey on hover */
  border-color: var(--light-grey) !important;
  color: #fff !important;
}

.sb-picked {
  background: var(--primary-black); /* Primary black when picked */
  border-color: var(--primary-black); /* Primary black border when picked */
  color: #fff;
}

.sb-slot-holder h4 {
  grid-column: 1 / -1;
  margin: var(--m) 0 var(--xs);
  font-size: .95rem;
  font-weight: 700;
  color: var(--primary-black); /* Slot section headings in primary black */
}

.sb-empty {
  background: var(--box-bg); /* Light grey for empty state */
  border: 2px solid var(--box-border); /* Soft grey border for empty state */
  border-radius: 10px;
  text-align: center;
  padding: var(--m);
}

.sb-empty h4 {
  margin: .2rem 0 .4rem;
  font-size: 1.05rem;
  color: var(--primary-black); /* Empty state heading in primary black */
}

.sb-empty p {
  margin: 0;
  font-size: .9rem;
  color: var(--text);
}

/* ── DATE PICKER INPUT ─────────────────────────────────────────────────── */
.flatpickr-input {
  width: 100%;
  min-height: var(--btn-h);
  padding: var(--s) var(--m);
  font-size: 1rem;
  border: 1px solid var(--input-border); /* Consistent input border */
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  caret-color: var(--primary-black); /* Primary black caret */
}

.flatpickr-input::placeholder {
  color: #666;
  opacity: 1;
}

/* ── INLINE VALIDATION ──────────────────────────────────────────────────── */
.sb-invalid input,
.sb-invalid .flatpickr-input {
  border-color: #b00020 !important; /* Red for invalid */
}

.sb-error {
  display: block;
  color: #b00020; /* Red for error messages */
  font-size: .85rem;
  margin-top: .25rem;
  font-family: inherit;
}

/* Maintain background color on picked slot */
.time-slot-plugin.sb-picked,
.sb-slot.sb-picked {
  background-color: var(--primary-black) !important;
  border-color: var(--primary-black) !important;
  color: #fff !important;
}