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

body {
    background-color: #090d16;
    color: #f8fafc;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow-x: hidden;
    position: relative;
}

/* [LÍNEA 12] Fondo con brillo ambiental decorativo */
.bg-glow {
    position: fixed;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, rgba(9, 13, 22, 0) 70%);
    border-radius: 50%;
    z-index: 0;
    top: 5vh;
    left: calc(50% - 350px);
    pointer-events: none;
}

/* [LÍNEA 25] Barra de navegación superior fija */
header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    background: rgba(9, 13, 22, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(244, 114, 182, 0.15);
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #f472b6, #c084fc, #fb7185);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* [LÍNEA 45] Botón principal con degradado y sombra de luz */
.cta-btn {
    background: linear-gradient(135deg, #db2777, #9333ea);
    color: white;
    padding: 16px 35px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 10px 30px rgba(219, 39, 119, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
    cursor: pointer;
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(219, 39, 119, 0.6);
}

/* [LÍNEA 70] Tarjeta de vista previa simulada */
.preview-card-mockup {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.6), rgba(15, 23, 42, 0.8));
    border: 1px solid rgba(244, 114, 182, 0.3);
    border-radius: 24px;
    padding: 30px;
    max-width: 450px;
    margin: 0 auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    text-align: center;
}

/* [LÍNEA 85] Pie de página corporativo */
footer {
    text-align: center;
    padding: 50px 20px;
    border-top: 1px solid rgba(244, 114, 182, 0.1);
    color: #64748b;
    font-size: 0.9rem;
    position: relative;
    z-index: 2;
}

/* [LÍNEA 95] Contenedores de formularios y estructura general */
.form-container {
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(244, 114, 182, 0.3);
    border-radius: 20px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 15px 35px rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
    margin: auto;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #cbd5e1;
    font-size: 0.9rem;
    font-weight: 500;
}

input[type="text"], textarea, input[type="file"] {
    width: 100%;
    padding: 12px 15px;
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(244, 114, 182, 0.2);
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

input[type="text"]:focus, textarea:focus {
    border-color: #f472b6;
}

textarea {
    resize: vertical;
    height: 90px;
}

input[type="file"] {
    padding: 10px;
    cursor: pointer;
    color: #94a3b8;
}

/* [LÍNEA FINAL] Botón flotante de regreso elegante estilo píldora */
.back-btn {
    position: absolute;
    top: 25px;
    left: 25px;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(244, 114, 182, 0.25);
    color: #f8fafc;
    padding: 10px 18px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    z-index: 10;
}

.back-btn:hover {
    background: rgba(244, 114, 182, 0.15);
    border-color: rgba(244, 114, 182, 0.6);
    transform: translateY(-2px);
    color: #f472b6;
    box-shadow: 0 6px 25px rgba(244, 114, 182, 0.2);
}