/* ================================
   VARIABLES DE ESTILO (THEME)
   ================================ */

:root {
  --kv-color-primary: #2563eb;
  --kv-color-primary-hover: #1d4ed8;
  --kv-color-bg: #f3f4f6;
  --kv-color-card-bg: #ffffff;
  --kv-color-border: #e5e7eb;
  --kv-color-text: #111827;
  --kv-color-text-muted: #6b7280;
  --kv-color-error: #dc2626;
  --kv-color-success: #16a34a;

  --kv-radius-card: 16px;
  --kv-radius-input: 8px;
  --kv-radius-button: 999px;

  --kv-shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.12);

  --kv-font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;

  --kv-input-padding-y: 10px;
  --kv-input-padding-x: 12px;
  --kv-input-font-size: 15px;

  --kv-transition-fast: 0.15s ease-out;
}

/* Permitir que el widget.js sobrescriba variables */
.kv-theme-custom {
  /* aquí se pueden inyectar variables desde JS */
}

/* ================================
   RESET BÁSICO
   ================================ */

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--kv-font-family);
  background: var(--kv-color-bg);
  color: var(--kv-color-text);
}

/* ================================
   CONTENEDOR PRINCIPAL
   ================================ */

#kusitech-widget-root {
  display: flex;
  justify-content: center;
  padding: 24px 12px;
}

.kv-reserva-wrapper {
  width: 100%;
  max-width: 720px;
  background: var(--kv-color-card-bg);
  border-radius: var(--kv-radius-card);
  box-shadow: var(--kv-shadow-soft);
  padding: 24px 20px 28px;
}

/* ================================
   HEADER
   ================================ */

.kv-reserva-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.kv-reserva-header-text {
  flex: 1;
}

#kv-reserva-titulo {
  margin: 0 0 4px;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--kv-color-text);
}

.kv-reserva-subtitulo {
  margin: 0;
  font-size: 0.95rem;
  color: var(--kv-color-text-muted);
}

.kv-reserva-header-media {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.kv-reserva-icono {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  object-fit: cover;
  background: #e5e7eb;
}

/* ================================
   MENSAJE GLOBAL
   ================================ */

.kv-reserva-mensaje {
  min-height: 20px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  transition: opacity var(--kv-transition-fast);
}

/* ================================
   FORMULARIO
   ================================ */

.kv-reserva-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* GRID RESPONSIVE PARA CAMPOS */

.kv-reserva-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 16px;
}

@media (max-width: 640px) {
  .kv-reserva-grid {
    grid-template-columns: 1fr;
  }

  .kv-reserva-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .kv-reserva-header-media {
    align-self: flex-start;
  }
}

/* CAMPOS */

.kv-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kv-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--kv-color-text-muted);
}

.kv-input,
.kv-select {
  width: 100%;
  padding: var(--kv-input-padding-y) var(--kv-input-padding-x);
  font-size: var(--kv-input-font-size);
  border-radius: var(--kv-radius-input);
  border: 1px solid var(--kv-color-border);
  background: #ffffff;
  color: var(--kv-color-text);
  outline: none;
  transition: border-color var(--kv-transition-fast),
    box-shadow var(--kv-transition-fast),
    background-color var(--kv-transition-fast);
}

.kv-input:focus,
.kv-select:focus {
  border-color: var(--kv-color-primary);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.25);
}

/* ================================
   BOTÓN PRINCIPAL
   ================================ */

.kv-reserva-actions {
  margin-top: 8px;
  display: flex;
  justify-content: flex-end;
}

.kv-btn-primary {
  border: none;
  cursor: pointer;
  padding: 10px 22px;
  border-radius: var(--kv-radius-button);
  background: var(--kv-color-primary);
  color: #ffffff;
  font-size: 0.98rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background-color var(--kv-transition-fast),
    transform var(--kv-transition-fast),
    box-shadow var(--kv-transition-fast);
}

.kv-btn-primary:hover {
  background: var(--kv-color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.35);
}

.kv-btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

/* ================================
   MODAL DE SUGERENCIAS
   ================================ */

.kv-modal {
  position: fixed;
  inset: 0;
  display: none; /* se muestra como flex desde JS */
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.45);
  z-index: 9999;
  padding: 16px;
}

.kv-modal-content {
  background: #ffffff;
  border-radius: 16px;
  max-width: 420px;
  width: 100%;
  padding: 20px 18px 18px;
  position: relative;
  box-shadow: var(--kv-shadow-soft);
}

.kv-modal-title {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--kv-color-text);
}

.kv-modal-text {
  margin: 0 0 12px;
  font-size: 0.95rem;
  color: var(--kv-color-text-muted);
}

.kv-modal-sugerencias {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.modal-sugerencia-btn {
  border: 1px solid var(--kv-color-primary);
  background: #eff6ff;
  color: var(--kv-color-primary);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color var(--kv-transition-fast),
    color var(--kv-transition-fast),
    transform var(--kv-transition-fast);
}

.modal-sugerencia-btn:hover {
  background: var(--kv-color-primary);
  color: #ffffff;
  transform: translateY(-1px);
}

.kv-modal-footer {
  display: flex;
  justify-content: flex-end;
}

.modal-btn-cancelar {
  border: none;
  background: #e5e7eb;
  color: #374151;
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color var(--kv-transition-fast),
    color var(--kv-transition-fast);
}

.modal-btn-cancelar:hover {
  background: #d1d5db;
}

/* Botón cerrar (X) */

.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  color: #9ca3af;
  transition: color var(--kv-transition-fast), transform var(--kv-transition-fast);
}

.modal-close:hover {
  color: #4b5563;
  transform: scale(1.05);
}

/* ================================
   MENSAJE TEMPORAL (ANIMACIÓN)
   ================================ */

.kv-reserva-mensaje.fade-out {
  opacity: 1;
  animation: kv-fade-out 2.5s forwards;
}

.kv-reserva-mensaje.hidden {
  display: none;
}

@keyframes kv-fade-out {
  0% {
    opacity: 1;
  }
  80% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

/* ================================
   UTILIDADES
   ================================ */

.kv-text-error {
  color: var(--kv-color-error);
}

.kv-text-success {
  color: var(--kv-color-success);
}