* { box-sizing: border-box; }

:root {
  color-scheme: dark;

  --navy-deep: #000d2b;
  --navy: #00173f;
  --navy-light: #06245a;

  --black: #030404;
  --near-black: #070909;

  --panel: #0a0e0f;
  --panel-blue: #09111d;
  --panel-hover: #0d1625;

  --gold: #d7a92f;
  --gold-bright: #f0c54b;
  --gold-soft: #c49325;

  --white: #f7f7f4;
  --off-white: #deded9;
  --muted: #929995;

  --border: #303738;
  --border-soft: #202728;

  --radius: 15px;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--white);
  font-family: "Inter", Arial, sans-serif;
  background:
    radial-gradient(circle at 80% 3%, rgba(0, 27, 79, 0.5), transparent 26%),
    radial-gradient(circle at 95% 2%, rgba(215, 169, 47, 0.1), transparent 20%),
    var(--black);
}

.booking-shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

.booking-card {
  padding: clamp(24px, 5vw, 58px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 50% 0%, rgba(7, 38, 85, 0.28), transparent 38%),
    linear-gradient(145deg, #0a121d, #080c0e 55%, #070909);
  box-shadow: 0 25px 65px rgba(0, 0, 0, 0.46);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font: 800 .75rem/1.2 "Inter", Arial, sans-serif;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--white);
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  line-height: 1.05;
}

.intro {
  max-width: 620px;
  margin: 16px 0 34px;
  color: var(--muted);
  font: 1.05rem/1.6 "Inter", Arial, sans-serif;
}

form { display: grid; gap: 18px; }

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--white);
  font: 700 .9rem/1.3 "Inter", Arial, sans-serif;
}

.optional {
  color: var(--muted);
  font-weight: 500;
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 13px 14px;
  color: var(--off-white);
  background: rgba(0, 13, 43, 0.65);
  font: 1rem/1.35 "Inter", Arial, sans-serif;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

textarea { resize: vertical; }

select {
  min-height: 52px;
  padding-right: 40px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%23d7a92f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 8l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  cursor: pointer;
}

select option {
  background: var(--navy-deep);
  color: var(--off-white);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(215, 169, 47, 0.10);
  background-color: rgba(0, 13, 43, 0.88);
}

button {
  border: 0;
  border-radius: 8px;
  padding: 16px 20px;
  color: #11120f;
  background: linear-gradient(110deg, #f0c655, #d4a12a);
  cursor: pointer;
  font: 800 1rem/1 "Inter", Arial, sans-serif;
  transition: filter 0.2s ease, transform 0.2s ease;
}

button:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }
button:disabled { cursor: wait; opacity: .65; }

.form-status {
  min-height: 1.4em;
  margin: 0;
  color: var(--muted);
  font: .95rem/1.4 "Inter", Arial, sans-serif;
}

.form-status.error { color: #ffad9e; }
.form-status.success { color: #b6df9f; }

.section-label {
  margin: 4px 0 -6px;
  color: var(--white);
  font: 700 .9rem/1.3 "Inter", Arial, sans-serif;
}

.addon-toggle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.addon-toggle-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(0, 13, 43, 0.5);
}

.addon-toggle-main {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin: 0;
  cursor: pointer;
  font: 700 .82rem/1.3 "Inter", Arial, sans-serif;
}

.addon-toggle-main input {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  accent-color: var(--gold);
}

.addon-toggle-main span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

button.addon-info {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: help;
  font: italic 700 .65rem/1 "Inter", Arial, sans-serif;
}

button.addon-info:hover {
  border-color: var(--gold);
  color: var(--gold-bright);
}

.quantity-field-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quantity-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(0, 13, 43, 0.5);
}

.quantity-field-name {
  color: var(--white);
  font: 700 .85rem/1.3 "Inter", Arial, sans-serif;
}

.quantity-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

button.quantity-button {
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #08111d;
  color: var(--gold-bright);
  cursor: pointer;
  font: 700 1rem/1 "Inter", Arial, sans-serif;
}

button.quantity-button:hover {
  border-color: var(--gold);
}

.quantity-value {
  min-width: 20px;
  color: var(--white);
  text-align: center;
  font: 800 .9rem/1 "Inter", Arial, sans-serif;
}

@media (max-width: 640px) {
  .booking-shell { width: min(100% - 20px, 920px); padding: 10px 0 28px; }
  .booking-card { padding: 25px 18px 32px; border-radius: 12px; }
  .field-grid { grid-template-columns: 1fr; }
  .addon-toggle-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 420px) {
  .addon-toggle-grid { grid-template-columns: 1fr; }
}