:root {
  --bg: oklch(12% 0.01 260);
  --surface: oklch(18% 0.015 260 / 0.7);
  --surface-hover: oklch(22% 0.02 260 / 0.8);
  --line: oklch(30% 0.01 260 / 0.4);
  --input-line: oklch(38% 0.015 260 / 0.55);
  --text: oklch(92% 0.005 260);
  --muted: oklch(70% 0.01 260);
  --soft: oklch(45% 0.01 260);
  --accent: oklch(82% 0.04 85); /* Champagne Brass */
  --accent-strong: oklch(88% 0.06 85);
  --whatsapp: oklch(72% 0.15 150);
  --success: oklch(78% 0.12 155);
  --shadow: 0 40px 100px -20px rgb(0 0 0 / 0.5);
  --glass-blur: 24px;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html, body { min-height: 100%; margin: 0; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

/* Atmospheric Background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 20%, oklch(25% 0.04 85 / 0.08), transparent 40%),
    radial-gradient(circle at 80% 80%, oklch(20% 0.03 260 / 0.1), transparent 50%);
  z-index: -1;
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.guest-shell {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.checkin-card {
  width: min(100%, 460px);
  padding: 2.5rem 2rem;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.property-name {
  display: inline-block;
  margin: 0 0 1.5rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: oklch(100% 0 0 / 0.03);
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.form-heading { margin-bottom: 2rem; }
.form-heading h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -0.03em;
}
.form-heading p {
  margin: 0.75rem 0 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.field-group { margin-bottom: 1.5rem; }
.field-group label {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.01em;
}

input:not([type="date"]), textarea {
  width: 100%;
  min-height: 54px;
  border: 1px solid var(--input-line);
  border-radius: 0.75rem;
  background: oklch(0% 0 0 / 0.25);
  color: var(--text);
  padding: 0 1.25rem;
  outline: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
textarea {
  min-height: 100px;
  padding: 1rem 1.25rem;
  line-height: 1.6;
  resize: vertical;
}
input:not([type="date"]):focus, textarea:focus {
  border-color: var(--accent);
  background: oklch(0% 0 0 / 0.32);
  box-shadow: 0 0 0 1px var(--accent);
}
input::placeholder, textarea::placeholder {
  color: var(--soft);
  opacity: 0.65;
}

/* Date Input — custom wrapper */
.date-input-wrapper {
  position: relative;
}
.date-input-wrapper input[type="date"] {
  width: 100%;
  min-height: 54px;
  border: 1px solid var(--input-line);
  border-radius: 0.75rem;
  background: oklch(0% 0 0 / 0.25);
  color: var(--text);
  padding: 0 2.75rem 0 1.25rem;
  outline: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  z-index: 2;
  cursor: pointer;
  color-scheme: dark;
}
.date-input-wrapper input[type="date"]:focus {
  border-color: var(--accent);
  background: oklch(0% 0 0 / 0.32);
  box-shadow: 0 0 0 1px var(--accent);
}
/* Hide native shadow-DOM placeholder (mm/dd/yyyy in Chrome) when empty */
.date-input-wrapper input[type="date"]:invalid::-webkit-datetime-edit {
  color: transparent;
}
/* Show native value text when a date is selected */
.date-input-wrapper input[type="date"]:valid {
  color: var(--text);
}

/* Hide native spin/clear buttons */
.date-input-wrapper input[type="date"]::-webkit-inner-spin-button,
.date-input-wrapper input[type="date"]::-webkit-clear-button {
  display: none;
}

/* Calendar icon — works on all browsers via wrapper ::after */
.date-input-wrapper::after {
  content: "";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.25rem;
  height: 1.25rem;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23b8a77a' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
  pointer-events: none;
  z-index: 4;
  opacity: 0.75;
}

/* On WebKit (Chrome, Edge, Android), make the native indicator invisible.
   opacity:0 is needed because background:transparent alone still shows
   the default chevron icon on several mobile browsers. */
.date-input-wrapper input[type="date"]::-webkit-calendar-picker-indicator {
  opacity: 0;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  z-index: 5;
}

/* Date placeholder overlay */
.date-placeholder {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--soft);
  opacity: 0.65;
  pointer-events: none;
  z-index: 1;
  font-size: 0.95rem;
  transition: opacity 0.2s ease;
}
/* Hide placeholder when input has a value or is focused */
.date-input-wrapper input[type="date"]:valid ~ .date-placeholder,
.date-input-wrapper input[type="date"]:focus ~ .date-placeholder {
  opacity: 0;
}

.primary-button {
  width: 100%;
  min-height: 56px;
  margin-top: 1rem;
  border: 0;
  border-radius: 0.75rem;
  background: var(--accent);
  color: oklch(10% 0.01 260);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.primary-button:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px oklch(82% 0.04 85 / 0.3);
}
.primary-button:active { transform: translateY(0); }

.fine-print {
  margin: 1.25rem 0 0;
  color: var(--soft);
  font-size: 0.75rem;
  text-align: center;
}

/* Thank You State */
.thank-you-card { text-align: center; }
.success-icon-wrap {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
}
.success-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: oklch(78% 0.12 155 / 0.1);
  color: var(--success);
  display: grid;
  place-items: center;
}

.thank-you-message {
  margin: 1rem auto 2.5rem;
  max-width: 280px;
}

.offer-panel {
  text-align: left;
  padding: 2rem;
  border-radius: 1.5rem;
  background: oklch(100% 0 0 / 0.03);
  border: 1px solid var(--line);
}
.offer-label {
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}
.offer-panel h2 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.3;
}
.offer-panel p {
  margin: 1rem 0 2rem;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.9rem;
}

.whatsapp-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 56px;
  border-radius: 0.75rem;
  background: var(--whatsapp);
  color: oklch(12% 0.02 150);
  font-weight: 700;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.whatsapp-button:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -10px oklch(72% 0.15 150 / 0.4);
}

@media (max-width: 480px) {
  .checkin-card {
    padding: 2rem 1.5rem;
    border-radius: 0;
    border: 0;
    background: transparent;
    backdrop-filter: none;
    box-shadow: none;
  }
}


.admin-body {
  min-height: 100vh;
  background: oklch(14% 0.012 68);
}
.admin-shell {
  width: min(1080px, calc(100% - 1.5rem));
  margin: 0 auto;
  padding: 1rem 0 2rem;
}
.admin-card {
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow);
  padding: 2rem;
}
.admin-login-card {
  width: min(100%, 420px);
  margin: 10vh auto 0;
}
.admin-kicker {
  margin: 0 0 .5rem;
  color: var(--accent);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.admin-card h1,
.admin-page-heading h1 {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: -.02em;
}
.admin-card p,
.admin-page-heading p:not(.admin-kicker) {
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.95rem;
}
.admin-form { margin-top: 2rem; }
.admin-form input {
  margin-bottom: 1rem;
}
.admin-form small,
.field-group small {
  display: block;
  margin: 0.5rem 0 1rem;
  color: var(--soft);
  font-size: 0.8rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.admin-form button {
  width: 100%;
  min-height: 54px;
  margin-top: 0.5rem;
  border: 0;
  border-radius: 0.75rem;
  background: var(--accent);
  color: oklch(10% 0.01 260);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.admin-form button:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -5px oklch(82% 0.04 85 / 0.3);
}
.admin-form button:active { transform: translateY(0); }
.admin-nav {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-bottom: 1.5rem;
  padding: .5rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}
.admin-nav-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .25rem;
}
.admin-nav a,
.admin-logout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 1rem;
  border-radius: .85rem;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}
.admin-nav a.active {
  background: var(--accent);
  color: oklch(10% 0.01 260);
}
.admin-nav a:not(.active):hover {
  background: oklch(100% 0 0 / 0.05);
  color: var(--text);
}
.admin-logout {
  border: 1px solid var(--line);
  background: oklch(100% 0 0 / 0.02);
}
.admin-logout:hover {
  border-color: var(--soft);
  color: var(--text);
}
.admin-page-heading { margin-bottom: 2rem; }
.results-panel {
  max-height: 60vh;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: oklch(0% 0 0 / 0.2);
  padding: 1.25rem;
}
.results-panel pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: oklch(86% 0.012 72);
  font-size: .88rem;
  line-height: 1.62;
}
.admin-error,
.admin-success {
  margin: .9rem 0;
  padding: .8rem .95rem;
  border-radius: .85rem;
  line-height: 1.45;
}
.admin-error {
  border: 1px solid oklch(72% 0.14 25 / .4);
  background: oklch(28% 0.08 25 / .34);
  color: oklch(86% 0.08 25);
}
.admin-success {
  border: 1px solid oklch(76% 0.13 148 / .35);
  background: oklch(28% 0.08 148 / .28);
  color: oklch(86% 0.09 148);
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
  margin-bottom: 1rem;
}
.stat-card {
  border: 1px solid color-mix(in oklch, var(--whatsapp), var(--line) 65%);
  border-radius: 1rem;
  background: oklch(20% 0.035 148 / .45);
  padding: 1rem;
}
.stat-card span {
  display: block;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: .1em;
}
.stat-card strong {
  display: block;
  margin-top: .35rem;
  color: var(--whatsapp);
  font-size: 2rem;
}
.settings-form { margin-top: 1rem; }
.settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.toggle-row {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin: .5rem 0 1rem;
  color: var(--muted);
  line-height: 1.4;
}
.toggle-row input {
  width: 1.1rem;
  min-height: 1.1rem;
  accent-color: var(--accent-strong);
}

@media (min-width: 720px) {
  .guest-shell { padding: 2rem; }
  .admin-shell { padding-top: 1.25rem; }
  .admin-nav {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .admin-nav-links {
    display: flex;
    flex-wrap: wrap;
  }
  .settings-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 .9rem;
  }
}