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

:root {
  --cream: #fff9f5;
  --blush: #fadadd;
  --rose: #d4a5a5;
  --rose-dark: #a67b7d;
  --text: #8b6b6d;
  --text-light: #b89597;
  --white: #ffffff;
  --shadow: rgba(166, 123, 125, 0.12);
  --font-serif: "Libre Baskerville", Georgia, serif;
  --font-script: "Brittany", cursive;
  --font-sans: "Ubuntu", system-ui, sans-serif;
  --radius: 16px;
  --transition: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
  overflow-x: hidden;
}

.page-bg {
  position: relative;
  min-height: 100dvh;
  background: var(--cream);
  background-image: radial-gradient(circle at 20% 20%, rgba(250, 218, 221, 0.35), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(212, 165, 165, 0.2), transparent 45%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem 2.5rem;
  overflow-x: hidden;
}

.app {
  width: 100%;
  max-width: 820px;
  margin-inline: auto;
  position: relative;
  min-height: 480px;
}

.app--wide {
  max-width: min(100%, 820px);
}

#screen-confirm.screen--active {
  max-width: min(100%, 1220px);
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: min(100dvh - 3rem, 720px);
  padding-inline: max(0.5rem, env(safe-area-inset-left)) max(0.5rem, env(safe-area-inset-right));
  margin-inline: auto;
}

#screen-confirm .boarding-passes-list,
#screen-confirm .boarding-pass-scaler {
  width: min(100%, 1220px);
  max-width: 100%;
  margin-inline: auto;
}

.page-bg:has(#screen-confirm:not([hidden])) .app--wide {
  max-width: min(100%, 1220px);
}

@media (max-width: 640px) {
  .page-bg {
    padding: 0.75rem 0.5rem 1.5rem;
  }

  .app--wide {
    max-width: 100%;
  }
}

.screen {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
  position: absolute;
  width: 100%;
  max-width: 820px;
  margin-inline: auto;
  left: 0;
  right: 0;
  visibility: hidden;
}

.screen--active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  position: relative;
  visibility: visible;
}

#screen-unlock {
  --proximity: 0.35;
  transition:
    opacity var(--transition),
    transform var(--transition),
    filter 0.5s ease;
  filter:
    grayscale(calc(1 - var(--proximity) * 0.85))
    contrast(calc(0.75 + var(--proximity) * 0.25))
    brightness(calc(0.88 + var(--proximity) * 0.12));
}

@keyframes btn-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-6px);
  }
  40% {
    transform: translateX(6px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
}

.btn--shake {
  animation: btn-shake 0.4s ease;
}

.screen-header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.screen-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--rose-dark);
  background: var(--blush);
  display: inline-block;
  padding: 0.45rem 1.25rem;
  margin-bottom: 1rem;
}

.screen-title {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  font-weight: 600;
  color: var(--rose-dark);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.screen-subtitle {
  font-size: 0.95rem;
  color: var(--text-light);
  max-width: 420px;
  margin: 0 auto;
}

.script-name {
  font-family: var(--font-script);
  font-size: 1.6em;
  color: var(--rose);
  font-weight: 400;
}

.btn {
  display: block;
  width: 100%;
  max-width: 320px;
  margin: 1.5rem auto 0;
  padding: 0.9rem 1.5rem;
  border: none;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn--primary {
  background: var(--rose);
  color: var(--white);
  box-shadow: 0 4px 20px var(--shadow);
}

.btn--primary:hover {
  background: var(--rose-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--shadow);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.error-msg {
  text-align: center;
  color: var(--rose-dark);
  font-size: 0.875rem;
  margin-top: 1rem;
  padding: 0.65rem 1rem;
  background: rgba(250, 218, 221, 0.5);
  border-radius: 8px;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

/* Formulario */
.trip-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 8px 40px var(--shadow);
  border: 1px solid rgba(250, 218, 221, 0.6);
}

.form-field {
  display: block;
  margin-bottom: 1.25rem;
  border: none;
  padding: 0;
}

.form-field legend,
.field-label {
  display: block;
  width: 100%;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rose-dark);
  margin-bottom: 0.5rem;
  padding: 0;
}

.form-field--fixed-destino {
  text-align: center;
  padding: 1rem 1.25rem;
  background: rgba(255, 249, 245, 0.85);
  border-radius: 10px;
  border: 1.5px solid var(--blush);
}

.form-field--fixed-destino .field-hint {
  margin-top: 0;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--blush);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--cream);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a67b7d' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-field select:invalid {
  color: var(--text-light);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--rose);
  box-shadow: 0 0 0 3px rgba(212, 165, 165, 0.25);
}

.form-field textarea {
  resize: vertical;
  min-height: 100px;
}

.field-hint {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 0.5rem;
  text-align: center;
}

.field-hint--selected {
  color: var(--rose-dark);
  font-weight: 500;
}

.trip-form .btn {
  margin-top: 0.5rem;
}

.confetti {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 100;
}

@media (max-width: 640px) {
  .page-bg {
    padding: 1rem 0.75rem 2rem;
    align-items: flex-start;
  }

  .trip-form {
    padding: 1rem;
  }
}