Commit inicial del cotizador 3D

www/estilos.css

@@ -0,0 +1,275 @@
+/* ==========================
+   ESTILO BASE ORIGINAL
+========================== */
+body {
+  font-family: "Poppins", sans-serif;
+  background: linear-gradient(135deg, #2c3e50, #4ca1af);
+  color: #fff;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  min-height: 100vh;
+  margin: 0;
+  padding: 20px;
+}
+
+/* CONTENEDOR PRINCIPAL */
+.contenedor {
+  background: rgba(255, 255, 255, 0.1);
+  backdrop-filter: blur(10px);
+  border-radius: 16px;
+  padding: 30px 40px;
+  width: 900px;
+  max-width: 95%;
+  text-align: center;
+  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
+}
+
+h1 {
+  margin-bottom: 20px;
+  font-size: 1.6em;
+}
+
+/* CAMPOS DEL FORMULARIO */
+.campo {
+  margin-bottom: 15px;
+  text-align: left;
+}
+
+label {
+  display: block;
+  margin-bottom: 6px;
+  font-weight: 600;
+}
+
+/* DROPDOWNS MÁS COMPACTOS */
+select {
+  width: 100%;
+  padding: 8px 10px;
+  border-radius: 8px;
+  border: none;
+  outline: none;
+  font-size: 0.9em;
+  height: 40px; 
+}
+
+input[type="file"] {
+  width: 100%;
+  padding: 10px;
+  border-radius: 8px;
+  border: none;
+  outline: none;
+}
+
+
+.boton {
+  margin-top: 15px;
+  width: 60%;
+  background-color: #00b894;
+  border: none;
+  color: white;
+  font-weight: bold;
+  padding: 12px;
+  border-radius: 10px;
+  cursor: pointer;
+  transition: background 0.3s;
+  font-size: 0.95em;
+  margin-left: auto;
+  margin-right: auto;
+  display: block;
+}
+
+.boton:hover {
+  background-color: #019875;
+}
+
+/* ==========================
+   RESULTADOS
+========================== */
+.resultado {
+  margin-top: 25px;
+  width: 100%;
+}
+
+/* TARJETAS DE RESULTADOS */
+.card-resultado {
+  background: linear-gradient(145deg, #00b894, #019875);
+  color: #fff;
+  border-radius: 14px;
+  padding: 25px;
+  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
+  animation: aparecer 0.6s ease;
+  height: fit-content;
+}
+
+.card-resultado h2,
+.card-resultado h3 {
+  text-align: center;
+  margin-bottom: 10px;
+  font-weight: bold;
+}
+
+.res-item {
+  margin: 6px 0;
+  font-size: 1.05em;
+}
+
+.card-resultado hr {
+  border: none;
+  border-top: 1px solid rgba(255,255,255,0.4);
+  margin: 15px 0;
+}
+
+.total {
+  font-size: 1.2em;
+  text-align: center;
+  font-weight: bold;
+  margin-top: 10px;
+}
+
+.card-resultado.error {
+  background: linear-gradient(145deg, #ff7675, #d63031);
+}
+
+/* BOTÓN DESCARGAR */
+.acciones {
+  text-align: center;
+  margin-top: 15px;
+}
+
+.boton-descargar {
+  display: inline-block;
+  background-color: #0984e3;
+  color: #fff;
+  padding: 10px 16px;
+  border-radius: 8px;
+  text-decoration: none;
+  transition: background 0.3s;
+  font-weight: 600;
+}
+
+.boton-descargar:hover {
+  background-color: #74b9ff;
+}
+
+/* ==========================
+   DOS COLUMNAS LATERALES
+========================== */
+.resultado-dos-columnas {
+  display: flex;
+  justify-content: space-between;
+  gap: 20px;
+  margin-top: 25px;
+  width: 100%;
+}
+
+.resultado-dos-columnas .card-resultado {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+}
+
+/* ==========================
+   ANIMACIÓN
+========================== */
+@keyframes aparecer {
+  from { opacity: 0; transform: translateY(10px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+/* ==========================
+   ADAPTABILIDAD MÓVIL
+========================== */
+@media (max-width: 768px) {
+  body {
+    height: auto;
+    padding: 20px;
+  }
+
+  .contenedor {
+    width: 100%;
+    max-width: 420px;
+    padding: 20px;
+  }
+
+  .resultado-dos-columnas {
+    flex-direction: column;
+  }
+
+  .resultado-dos-columnas .card-resultado {
+    flex: 1 1 100%;
+  }
+
+  .boton {
+    width: 80%;
+  }
+}
+
+/* =============================
+   🔵 Loader (Barra y Spinner)
+============================= */
+
+#loader-overlay {
+  display: none;
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.85);
+  z-index: 9999;
+  justify-content: center;
+  align-items: center;
+  flex-direction: column;
+  color: #fff;
+  font-family: Arial, sans-serif;
+  text-align: center;
+  opacity: 0;
+  transition: opacity 0.4s ease;
+}
+
+#loader-overlay[style*="display: flex"] {
+  opacity: 1;
+}
+
+.loader-container {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+}
+
+.loader-spinner {
+  width: 80px;
+  height: 80px;
+  border: 6px solid rgba(255, 255, 255, 0.2);
+  border-top-color: #00b4d8;
+  border-radius: 50%;
+  animation: girar 1s linear infinite;
+}
+
+.loader-text {
+  margin-top: 20px;
+  font-size: 18px;
+  font-weight: 500;
+  text-shadow: 0 0 6px rgba(0, 180, 216, 0.8);
+}
+
+.barra-contenedor {
+  width: 80%;
+  max-width: 400px;
+  height: 12px;
+  background: rgba(255, 255, 255, 0.2);
+  border-radius: 6px;
+  overflow: hidden;
+  margin-top: 20px;
+}
+
+.barra-progreso {
+  width: 0%;
+  height: 100%;
+  background: linear-gradient(90deg, #00b4d8, #48cae4, #90e0ef);
+  transition: width 0.2s ease-in-out;
+}
+
+@keyframes girar {
+  to { transform: rotate(360deg); }
+}