/* ============================================
   AVENUE RECORDS — red/black responsive booking UI
   Alleen HTML/CSS. script.js blijft ongewijzigd.
   ============================================ */

:root {
  --red: #FF0000;
  --black: #000000;
  --dark: #111111;
  --dark-2: #1A1A1A;
  --grey: #333333;
  --grey-2: #4A4A4A;
  --soft-red: #FF3B3B;
  --light-red: #FF6666;
  --white: #FFFFFF;
  --font: Helvetica, Arial, sans-serif;

  --page-width: 1080px;
  --page-padding: clamp(14px, 4vw, 32px);
  --border: 2px solid var(--red);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background: var(--black);
  font-family: var(--font);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--black);
  color: var(--white);
  font-family: var(--font);
  line-height: 1.35;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

button,
input {
  font: inherit;
}

button {
  border-radius: 0;
}

/* ---------- HEADER ---------- */

.site-header {
  width: 100%;
  border-bottom: var(--border);
  background: var(--black);
}

.header-inner {
  width: min(var(--page-width), calc(100% - var(--page-padding) * 2));
  margin: 0 auto;
  padding: clamp(16px, 3vw, 30px) 0;
}

.header-inner-logo-only {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

/* Logo blijft gecentreerd en schaalt netjes */
.site-logo {
  display: block;
  width: clamp(170px, 24vw, 280px);
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  background: var(--black);
}

/* ---------- TITLES ---------- */

h2 {
  margin-bottom: clamp(10px, 2vw, 14px);
  color: var(--red);
  font-family: var(--font);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.065em;
  line-height: 0.95;
  font-size: clamp(32px, 6vw, 68px);
}

/* ---------- LAYOUT ---------- */

.booking-shell {
  width: min(var(--page-width), calc(100% - var(--page-padding) * 2));
  margin: 0 auto;
  padding: clamp(18px, 4vw, 42px) 0 clamp(40px, 7vw, 80px);
  display: grid;
  gap: clamp(16px, 3vw, 24px);
}

.panel {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  border: var(--border);
  background: var(--black);
}

.panel-number {
  border-right: var(--border);
  padding: clamp(14px, 2vw, 18px) 12px;
  color: var(--red);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 1;
}

.panel-content {
  padding: clamp(16px, 4vw, 34px);
  min-width: 0;
}

.panel-text,
.slots-hint {
  max-width: 720px;
  color: var(--white);
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 700;
}

.panel-text {
  margin-bottom: clamp(18px, 3vw, 24px);
}

.form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 260px);
  gap: 14px;
  margin-bottom: 16px;
}

/* ---------- FORM ---------- */

.field {
  min-width: 0;
}

.field label {
  display: block;
  margin-bottom: 8px;
  color: var(--white);
  font-size: clamp(12px, 1.8vw, 14px);
  font-weight: 900;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  min-height: 54px;
  border: var(--border);
  border-radius: 0;
  outline: none;
  background: var(--black);
  color: var(--white);
  padding: 13px 14px;
  font-size: clamp(16px, 2vw, 18px);
  font-weight: 900;
  caret-color: var(--red);
  appearance: none;
}

.field input::placeholder {
  color: var(--white);
  opacity: 0.45;
}

.field input:focus {
  background: var(--red);
  color: var(--black);
}

.field input:focus::placeholder {
  color: var(--black);
}

.field input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(13%) sepia(100%) saturate(7471%) hue-rotate(0deg) brightness(110%) contrast(118%);
  cursor: pointer;
}

.field input[type="date"]:focus::-webkit-calendar-picker-indicator {
  filter: invert(0);
}

/* ---------- BUTTONS ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  border: var(--border);
  border-radius: 0;
  background: var(--red);
  color: var(--black);
  padding: 13px 18px;
  font-size: clamp(14px, 1.8vw, 16px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.1;
  text-align: center;
  cursor: pointer;
  transition:
          background 160ms ease,
          color 160ms ease,
          border-color 160ms ease,
          opacity 160ms ease;
}

.btn:hover:not(:disabled) {
  background: var(--soft-red);
  border-color: var(--soft-red);
  color: var(--black);
}

.btn:active:not(:disabled) {
  background: var(--grey);
  border-color: var(--grey);
}

.btn:focus-visible {
  outline: 2px solid var(--light-red);
  outline-offset: 4px;
}

.btn:disabled {
  border-color: var(--grey);
  background: var(--dark-2);
  color: var(--grey-2);
  cursor: not-allowed;
  opacity: 1;
}

.btn-outline,
.btn-full-day {
  background: var(--black);
  color: var(--red);
}

.btn-outline {
  width: 100%;
}

.btn-outline:hover:not(:disabled),
.btn-full-day:hover:not(:disabled) {
  background: var(--grey);
  border-color: var(--grey);
  color: var(--red);
}

.btn-full-day {
  min-width: 190px;
}

.btn-full-day.active {
  background: var(--red);
  color: var(--black);
  border-color: var(--red);
}

.btn-confirm {
  width: 100%;
  margin-top: clamp(16px, 3vw, 22px);
}

/* ---------- SLOTS ---------- */

.slots-topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(14px, 3vw, 18px);
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 22px);
}

.slots-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.slot {
  min-height: 86px;
  border: var(--border);
  border-radius: 0;
  background: var(--black);
  color: var(--red);
  padding: 13px 11px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 9px;
  cursor: pointer;
  user-select: none;
  transition:
          background 140ms ease,
          color 140ms ease,
          border-color 140ms ease,
          opacity 140ms ease;
}

.slot:hover:not(.unavailable):not(.selected) {
  background: var(--dark-2);
  border-color: var(--soft-red);
  color: var(--soft-red);
}

.slot.selected {
  background: var(--red);
  color: var(--black);
  border-color: var(--red);
}

.slot.unavailable {
  background: var(--dark-2);
  border-color: var(--grey);
  color: var(--grey-2);
  cursor: not-allowed;
  opacity: 1;
}

.slot-label {
  display: block;
  font-size: clamp(16px, 2.4vw, 22px);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
}

.slot-status {
  display: block;
  font-size: clamp(10px, 1.6vw, 12px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.slot.selected .slot-status {
  color: var(--black);
}

.slot.unavailable .slot-status {
  color: var(--grey-2);
}

.slots-grid.dimmed .slot:not(.unavailable) {
  opacity: 0.25;
  pointer-events: none;
}

.loading {
  grid-column: 1 / -1;
  min-height: 86px;
  border: var(--border);
  display: grid;
  place-items: center;
  color: var(--white);
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 900;
  text-transform: uppercase;
}

/* ---------- TOAST ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: clamp(14px, 4vw, 24px);
  width: min(560px, calc(100vw - 28px));
  transform: translateX(-50%) translateY(18px);
  border: var(--border);
  border-radius: 0;
  background: var(--black);
  color: var(--white);
  padding: 15px 16px;
  font-size: clamp(13px, 2vw, 15px);
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  transition:
          opacity 180ms ease,
          transform 180ms ease,
          background 180ms ease,
          color 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: var(--red);
  color: var(--black);
  border-color: var(--red);
}

.toast.error {
  background: var(--black);
  color: var(--white);
  border-color: var(--light-red);
}

/* ---------- TABLET ---------- */

@media (max-width: 920px) {
  .panel {
    grid-template-columns: 68px minmax(0, 1fr);
  }

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

  .slots-topbar {
    grid-template-columns: 1fr;
  }

  .btn-full-day {
    width: 100%;
    min-width: 0;
  }

  .slots-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- MOBILE ---------- */

@media (max-width: 640px) {
  :root {
    --page-padding: 10px;
  }

  .header-inner {
    padding: 14px 0;
  }

  .site-logo {
    width: clamp(150px, 48vw, 220px);
  }

  h2 {
    font-size: clamp(30px, 10vw, 46px);
    letter-spacing: -0.055em;
  }

  .booking-shell {
    padding-top: 16px;
    gap: 14px;
  }

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

  .panel-number {
    border-right: 0;
    border-bottom: var(--border);
    padding: 11px 13px;
    font-size: 22px;
  }

  .panel-content {
    padding: 15px;
  }

  .panel-text,
  .slots-hint {
    font-size: 15px;
  }

  .field input,
  .btn {
    min-height: 52px;
  }

  .slots-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .slot {
    min-height: 78px;
    padding: 11px 10px;
  }
}

/* ---------- SMALL MOBILE ---------- */

@media (max-width: 390px) {
  .site-logo {
    width: clamp(140px, 54vw, 190px);
  }

  h2 {
    font-size: 30px;
  }

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

  .panel-content {
    padding: 13px;
  }
}
/* ---------- FOOTER ---------- */

.site-footer {
  width: 100%;
  border-top: 2px solid var(--red);
  background: var(--black);
  padding: clamp(18px, 4vw, 28px) 16px;
  text-align: center;
}

.site-footer p {
  color: var(--white);
  font-family: var(--font);
  font-size: clamp(12px, 2vw, 14px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}